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KNOWLEDGE CENTRE
Learn about Naichr products, Iso Hemp hemp blocks, natural building materials, wall systems, installation information, product comparisons and technical resources for healthier Australian construction.
Select a category above to explore Kosps product information, educational articles, installation guides and technical resources

🌏 WE ONLY HAVE ONE OF THESE — ONE PLANET. ONE HOME. ONE FUTURE.
“Take a good look. This is the only home we have. There isn't another one waiting for us when we've finished with this one.”

WE ONLY HAVE ONE OF THESE — ONE PLANET. ONE HOME. ONE FUTURE.
Ages of Ice: We Dare You to Watch It. Then We Dare You to Do Something About It.
This is not scaremongering. It is about education, awareness, personal responsibility and recognising that the decisions we make today will determine the world our children and grandchildren inherit.
Look at our planet from space. A beautiful blue world, surrounded by darkness, supporting an extraordinary diversity of life.
There is no replacement waiting for us when we have finished with this one.
Yet how often do we stop to consider what we are doing to it, how the natural systems that sustain life are changing, and what responsibility we have to protect them?
ABC's extraordinary three-part documentary Ages of Ice, narrated by David Tennant, takes viewers into the frozen regions of Antarctica, Greenland and the Arctic, exploring how Earth's ice, oceans, climate and ecosystems are interconnected.
It is a remarkable reminder that what happens thousands of kilometres away can influence life across the entire planet.
At KOSP Construction Resources, we believe this documentary deserves the attention of every Australian, particularly those involved in government, local councils, town planning, architecture, engineering, manufacturing, development and construction.
We dare you to watch all three episodes. Then ask yourself whether your outlook on nature and the future of our planet has changed.
1. The World's Frozen Regions — Why They Matter to Everyone
The enormous ice sheets, glaciers and polar oceans of our planet are not simply remote frozen landscapes.
They form part of a complex natural system that helps regulate global temperatures, ocean circulation and climate conditions.
Ice and snow reflect a substantial amount of incoming sunlight back into space, helping regulate Earth's energy balance.
As reflective ice disappears, darker ocean water and exposed land absorb more solar energy, contributing to additional warming.
The Greenland and Antarctic ice sheets also contain enormous quantities of frozen freshwater. When land-based ice melts or flows into the ocean, it contributes to rising sea levels.
Changes in polar oceans can influence marine ecosystems, ocean circulation and the distribution of heat around the planet.
These processes are interconnected.
What happens at the poles does not stay at the poles.
The consequences can extend to coastal communities, agriculture, infrastructure, natural ecosystems and economies around the world.
2. Fifty Years of Change — What Has Happened to Our Ice?
For decades, scientists have monitored Earth's frozen regions using satellites, research stations, ocean measurements and other scientific instruments.
Continuous satellite records of Arctic sea ice began in 1979, providing an increasingly detailed picture of how conditions have changed.
Since then, Arctic September sea ice extent has declined substantially, at approximately 12% per decade relative to the 1981–2010 average.
The amount of older, thicker Arctic sea ice has also declined considerably.
Greenland has experienced substantial losses of land-based ice, while Antarctica has experienced significant changes in both its ice sheets and surrounding sea ice.
However, the Arctic and Antarctic do not respond identically, and it is important to distinguish floating sea ice from land-based glaciers and ice sheets.
Melting floating sea ice does not directly raise global sea levels in the same way that melting land-based ice does.
Nevertheless, declining sea ice affects the planet's energy balance, while the loss of land-based ice contributes directly to sea-level rise.
Earth has experienced natural ice ages and warmer periods throughout its history.
But today's rapid global warming is primarily driven by human greenhouse gas emissions.
The scientific evidence is substantial. The question is what we choose to do with that knowledge.
3. Why Should Australians Be Concerned?
Australia is not isolated from the consequences of a changing global climate.
The CSIRO and Bureau of Meteorology have documented long-term increases in Australian temperatures, more extreme heat, rising sea levels and changes in rainfall patterns.
These developments have implications for our homes, infrastructure, coastal communities, agriculture, natural ecosystems and economic future.
Higher temperatures increase the importance of effective insulation, passive design, ventilation, shading and energy-efficient buildings.
Changing rainfall and extreme weather patterns create additional challenges for stormwater management, infrastructure resilience and long-term development planning.
Rising sea levels increase exposure to coastal flooding and erosion.
We cannot prevent every natural disaster, and not every weather event can be attributed directly to climate change.
However, understanding long-term climate trends allows us to make better decisions about how and where we build.
A home constructed today may still be standing in 50, 75 or even 100 years.
Are we designing and constructing buildings for yesterday's conditions, or preparing for the environmental challenges of tomorrow?
4. Every Tonne of Carbon Matters
One of the most important principles of climate science is that every tonne of carbon dioxide we prevent from entering the atmosphere helps limit future warming.
The relationship between cumulative carbon dioxide emissions and global warming means that reducing emissions today has a meaningful long-term benefit.
Imagine what could be achieved over the next 20 years if individuals, businesses, manufacturers, developers, councils and governments all started making more responsible decisions.
Could humanity eventually reach a point where we remove more carbon dioxide from the atmosphere than we release?
This is known as achieving net-negative carbon dioxide emissions.
Achieving that globally within 20 years would be extremely ambitious and is not a guaranteed scientific forecast.
Nevertheless, reducing emissions towards net zero and eventually achieving sustained net-negative emissions are important goals for limiting and potentially reducing human-caused warming.
The sooner meaningful action begins, the greater the opportunity to reduce future impacts.
Every tonne matters. Every decision matters. Every year matters.
5. Stop Waiting for Somebody Else
Perhaps one of the greatest obstacles to meaningful environmental progress is the belief that somebody else will take responsibility.
The government will fix it.
Large corporations will fix it.
Scientists will find a solution.
Future generations will work something out.
But what happens when everybody thinks the same way?
Nothing gets done.
That attitude can become a disease in itself — a culture of waiting, excuses and passing responsibility to others.
We cannot continue burying our heads in the sand and expecting somebody else to solve every problem.
Why not start making a difference ourselves?
We can reduce unnecessary waste, improve the energy efficiency of our homes, support responsible manufacturing, consider lower-carbon building materials and make more informed purchasing decisions.
We can educate ourselves, encourage others to learn and support businesses genuinely working towards more sustainable practices.
Individual actions alone cannot replace the larger changes required from governments and industry. Both are necessary.
We don't have to change everything overnight. But we do have to start.
6. It's Time for Councils and Town Planners to Take Responsibility Too
Local councils, town planners, planning authorities and governments have an important role in shaping the communities we build.
They influence development patterns, land use, building locations, environmental considerations, urban design and the long-term sustainability of our towns and cities.
Isn't it time we seriously reconsidered whether our planning policies and development practices are keeping pace with the environmental challenges facing us?
For too long, conventional building approaches have been accepted as the default, while innovative alternatives can encounter uncertainty, unnecessary obstacles and delays.
Councils and planning authorities should actively encourage sustainable developments, climate-responsive design, better energy efficiency, appropriate lower-carbon construction materials and more resilient communities.
This does not mean ignoring essential building regulations.
Structural performance, fire safety, durability, accessibility and compliance must remain fundamental requirements.
Planning approvals and building-code compliance are also separate regulatory responsibilities, and councils cannot simply rewrite national building standards.
However, planning authorities can review unnecessary barriers, encourage responsible innovation and work with the construction industry to support better environmental outcomes.
It's time for councils, town planners, developers, architects, engineers and building authorities to stop simply accepting the way things have always been done.
If we know there are opportunities to build more sustainably, shouldn't we be doing everything reasonably possible to make those opportunities a reality?
Our children and grandchildren will live in the communities we plan and construct today.
We need leadership, not just promises. We need practical change, not another 20 years of waiting
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7. The Construction Industry Must Be Part of the Solution
The building and construction industry has a significant opportunity to reduce greenhouse gas emissions and improve the environmental performance of our built environment.
The manufacture of conventional building materials, transportation, construction activities and the operation of buildings all contribute to global emissions.
We need to look beyond the initial cost of construction and consider the environmental impact of materials throughout their life cycle.
This includes embodied carbon, operational energy consumption, thermal performance, durability, maintenance, repair and end-of-life outcomes.
A material that is inexpensive to purchase may not necessarily represent the best long-term environmental outcome.
Likewise, a product described as natural or sustainable should not automatically be assumed to have a lower environmental impact without supporting evidence.
At KOSP Construction Resources, we believe responsible construction requires research, innovation, education and a willingness to investigate alternatives.
Hemp-based building products, natural fibre insulation, clay panels and other bio-based materials offer opportunities to explore lower embodied carbon, improved thermal performance and more environmentally responsible building systems.
Appropriate testing, engineering, certification and life-cycle assessment are essential to demonstrating the suitability and environmental benefits of these products.
No single product will solve climate change.
But refusing to investigate alternatives simply because conventional methods are familiar is not a responsible long-term approach.
The construction industry should be helping lead change, not waiting for somebody else to make it happen.
8. Education Must Come Before Fear
Environmental discussions should be based on credible scientific research, accurate information and open discussion.
There is a difference between raising awareness and creating unnecessary fear.
Recognising climate change does not mean believing that the world will end tomorrow.
It means understanding that our planet is experiencing measurable changes and that the decisions we make can influence future outcomes.
Education provides the foundation for informed choices.
That is why documentaries such as Ages of Ice are valuable.
They encourage viewers to consider the extraordinary complexity of Earth's natural systems and the importance of protecting the conditions that support life.
We should be encouraging more people to watch, learn, ask questions and examine the evidence.
Ignoring a problem does not make it disappear. Understanding it gives us an opportunity to respond.
9. What World Are We Leaving Our Children and Grandchildren?
Perhaps the most important question is not what climate change will mean for us today.
It is what kind of world we are leaving behind.
Our children and grandchildren will inherit the consequences of the decisions we make now.
They will live in the homes, buildings, towns and cities we construct.
They will depend on the natural resources, ecosystems and environmental conditions we help protect — or fail to protect.
Twenty years from today, will we look back knowing we recognised the challenges and took meaningful action?
Or will we regret that we kept waiting for somebody else?
We cannot change the past.
But we can make better decisions about the future.
Don't leave tomorrow's problems for your children and grandchildren to solve. Start making a difference today.
10. Our Challenge to Every Australian
We challenge you to watch all three episodes of ABC's Ages of Ice.
Watch how our planet works.
Understand how nature is interconnected.
Consider how changes in remote frozen regions can influence life across the entire world.
Then ask yourself:
Has this changed the way I look at nature, our planet and the future we're leaving our children and grandchildren?
If the answer is no, perhaps mankind's greatest threat isn't simply climate change.
Perhaps it is our unwillingness to recognise the evidence and take responsibility.
Because if we continue ignoring the warnings, dismissing scientific evidence and waiting for others to act, what hope are we giving future generations?
This is not about creating fear, blaming individuals or suggesting the world will end tomorrow.
It is about education, awareness, informed decisions and meaningful action.
WE ONLY HAVE ONE OF THESE.
ONE PLANET. ONE HOME. ONE FUTURE.
WE DARE YOU TO WATCH IT. THEN WE DARE YOU TO DO SOMETHING ABOUT IT.
Every tonne of carbon matters. Every meaningful action counts. Every generation deserves a future.
KOSP Construction Resources — Supporting education, innovation and more sustainable building solutions across Australia.
Watch the Documentary
Ages of Ice — ABC iview
https://iview.abc.net.au/show/ages-of-ice
Further Educational Resources
NASA — Climate Change
https://science.nasa.gov/climate-change/
National Snow and Ice Data Center — Arctic Sea Ice
https://nsidc.org/arcticseaicenews/
CSIRO — State of the Climate
https://www.csiro.au/en/research/environmental-impacts/climate-change/state-of-the-climate
Intergovernmental Panel on Climate Change
https://www.ipcc.ch/
OUR PLANET IS CHANGING. THE EVIDENCE IS ALL AROUND US



DON'T WAIT UNTIL IT'S TOO LATE.
The decisions we make today will shape the world our children and grandchildren inherit. Governments, councils, town planners, architects, builders and individuals all have a responsibility to act.
We only have one planet. The time to change how we build, live and protect it is now.

HEMP BLOCK PRICES IN AUSTRALIA — WHY PRICE PER SQUARE METRE IS ONLY PART OF THE STORY
When people first start looking at hemp blocks, one of the first questions is usually:
How much do hemp blocks cost per square metre?
It is an important question, but it is only part of the story.
At KOSP, we believe customers should be able to see clear pricing and understand what they are comparing. That is why we publish hemp block prices across our range rather than hiding everything behind a quote request.
But choosing a hemp block system should never come down to price alone.
MORE CHOICE CAN MEAN BETTER VALUE
KOSP offers eight hemp block thicknesses ranging from 75 mm through to 360 mm.
That gives builders, designers, architects and owner-builders more flexibility to select a wall thickness that suits the actual requirements of the project.
Not every project automatically needs the thickest block available.
Depending on the wall design, climate, thermal requirements, acoustic performance, structure and finish, a 200 mm or 250 mm block may suit a project where another supplier only offers a 300 mm option.
That can affect more than just the block price.
It can influence wall thickness, usable floor area, freight, handling, construction detailing and the overall cost of the wall system.
The objective should be to use the right block for the job, not simply the thickest block available.
THE CHEAPEST BLOCK IS NOT ALWAYS THE CHEAPEST WALL
A block price on its own does not tell you the full cost of the finished wall.
A complete hemp block wall may also involve:
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mortar or adhesive
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renders or finishes
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framing or structural support
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insulation in some systems
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labour
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freight
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unloading
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fixings
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detailing around windows and doors
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engineering or certification requirements
Two suppliers can advertise different block prices and still end up with very different complete wall costs.
That is why KOSP looks at the project as a complete building system rather than simply selling blocks by the pallet.
KOSP IS PROJECT-ORIENTATED, NOT JUST PRODUCT-ORIENTATED
KOSP has been involved in the Australian hemp block market since 2019 and brings more than 50 years of wider building-industry experience behind the products we supply.
That experience matters.
We understand that a successful project involves much more than getting blocks delivered to site.
It involves understanding the building, the wall build-up, the finishes, the installation sequence, the structure, the moisture strategy and how all of those components work together.
We are not here simply to sell you a pallet of blocks and leave you to work the rest out.
Our role is to help clients understand the complete system and make informed decisions before construction begins.
A ONE-STOP APPROACH
Through KOSP, clients can access more than hemp blocks.
Depending on the project, we can assist with:
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IsoHemp hemp blocks
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natural insulation
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Gramitherm
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Lemix clay panels
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lime and clay finishes
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wall-system information
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technical documentation
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installation guidance
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engineering coordination
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sustainable internal linings
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broader natural and bio-based building systems
This means a project does not necessarily have to be pieced together from multiple suppliers who each understand only one part of the wall.
For builders and owner-builders in particular, that can make the process far easier.
EXPERIENCE COUNTS
Hemp construction is still unfamiliar to many people in Australia.
That makes experience especially important.
A supplier may be able to provide a block.
But the more important question is:
Can they help you understand how the block becomes a complete wall?
At KOSP, our experience extends beyond hemp products into building, construction, wall systems and project delivery.
That wider building knowledge helps us look at the project practically, not just from a product-sales perspective.
CLEAR PRICING BUILDS TRUST
We believe customers should be able to see what products cost.
That is why KOSP publishes prices across the hemp block range.
Freight and complete project pricing still need to be calculated separately because every project is different.
Block thickness, quantities, delivery location, pallet numbers, freight route, unloading requirements and wall-system design can all affect the final delivered cost.
Publishing a single automatic freight figure may look convenient, but it can easily be misleading.
We would rather provide a realistic project price based on actual information.
MORE CHOICE. BETTER VALUE. MORE EXPERIENCE.
The real advantage of KOSP is not one individual block.
It is the combination of:
more block sizes
clear pricing
project-based support
over 50 years of building-industry experience
experience with hemp blocks since 2019
access to complete natural wall systems
technical and installation support
one knowledgeable team across multiple sustainable building products
That is what makes the difference between buying a product and planning a building system.
THE RIGHT QUESTION TO ASK
Instead of asking only:
“What is the cheapest hemp block per square metre?”
a better question is:
“What is the most suitable hemp wall system for my project, and what will the complete wall cost?”
That is where KOSP can help.
If you have plans, wall dimensions or a project currently in design, send them through and we can help you look at the most suitable hemp block thickness and complete wall approach.
KOSP Construction Resources
More choice. Better value. Real building experience.
CLEAR HEMP BLOCK PRICING
KOSP believes customers should be able to see what hemp blocks cost before they start planning a project.
With eight thicknesses available from 75 mm through to 360 mm, you have more choice to select the block that suits the actual requirements of your wall rather than being forced into only one or two available sizes.
KOSP HEMP BLOCK PRICES
75 mm — $90.00 m²
90 mm — $98.00 m²
120 mm — $125.00 m²
150 mm — $160.00 m²
200 mm — $195.00 m²
250 mm — $240.00 m²
300 mm — $280.00 m²
360 mm — $365.00 m²
PLEASE NOTE
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Prices are based on container-lot quantities and are subject to change.
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Prices are the same into all Australian capital-city ports.
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Prices do not include delivery from the capital-city port to the project postcode.
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Prices are plus GST.
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Pricing includes hemp blocks, adhesive/mortar and delivery to the capital-city port only.
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Final pricing may vary depending on project size and quantities.
SEND YOUR PLANS FOR PROJECT PRICING
Prices are for hemp blocks and are subject to the applicable terms shown with our current price list. Freight is calculated separately according to quantity, delivery location and project requirements.
WHY EIGHT THICKNESSES MATTER
The thickest block is not automatically the right block for every project.
Depending on the design, climate, required thermal performance, wall construction and other components in the building system, a project may be better suited to 150 mm, 200 mm or 250 mm rather than automatically moving to a 300 mm wall.
More choice allows the wall to be designed around the project.
MORE CHOICE. BETTER VALUE. THE RIGHT BLOCK FOR THE RIGHT WALL.
Installation Guides
Practical Installation information for Kosp building systems, Naichr products and natural building materials
More installation guides are being added. For current product information, please visit Downloads or contact KOSP through the enquiry form.
Naichr Wall & Ceiling Board Installation
Naichr wall and ceiling boards are installed using standard plasterboard-style dry-lining methods to suitable framing or battens.
Boards are fixed using screws and Bostik Wallboard Gold adhesive, with screw fixing as shown in the Naichr technical sheet. Where board joints do not land on studs or framing, use stitching battens / backing battens to support the joint.
External corners should be finished with suitable ali corner beads that allow panel to fit into beading, to eliminate flushing. Final surface finishes may include suitable mineral, lime-based coating systems, depending on the project requirements.
More detailed installation guides, fixing layouts and joint details are being added. Contact KOSP for the latest Naichr board technical sheet or project-specific advice.

Naichr board corners and wall junctions can be finished in two ways, depending on the desired look of the project. For a conventional finish, aluminium beads can be used and flushed in a similar manner to standard plasterboard systems. For a more natural architectural finish, proud timber beads or future Naichr beading options can be used to highlight external corners, internal corners and top-of-wall details, this can be a stronger system on corners . This gives designers and builders the choice between a clean blended finish or a visible feature detail that adds warmth, character and a distinctive natural appearance to the wall system.
Naichr 8 mm board sits in the same broad supply-cost category as specialist MgO, fibre cement and structural board products, while offering a natural hemp-based internal lining option.
Some MgO and cement-based boards can be dusty, abrasive and uncomfortable to cut or handle, particularly where reinforcing mesh or mineral fibres are present. Naichr board systems are intended to provide a more natural internal lining option with easier handling, cleaner installation and a warmer architectural finish.
Naichr Boundary Fencing Installation
Naichr boundary fencing is designed as a modular post-and-panel system for fence heights up to approximately 1.8 m, subject to site conditions, wind exposure and final engineering requirements. Before installation, set out the fence line and position posts to suit the required panel size. The Naichr system is designed around generally equal panel spacing, with post centres allowing approximately 5 mm clearance greater than the panel width, helping avoid small cut panels at the end of a run where possible. On last panel you may need to trim panels or rails to the required size
Post holes should generally be dug to a minimum depth of 600 mm, with final depth to suit soil conditions, fence height and wind loading. Naichr posts can then be positioned level and true. Posts may be set using suitable concrete or stabilised backfill methods, depending on project requirements. Unlike timber posts that can shrink, rot or create water traps inside concrete footings, and unlike metal posts that can corrode over time, Naichr posts are designed to be resistant to moisture damage, rot, rust and termites.
Installers may set all posts first where they are confident with the layout, or work progressively panel by panel. Once posts are secure and aligned, Naichr panels or rails slide into the receiving channel of the post. Panels are then seated into position and secured with stainless steel screws as required.
Where the fence line is on sloping ground, the bottom panel may be cut to suit the required angle. This may alter the visible fence height at one end of the panel or create a gap beneath the panel depending on the fall. A practical method is to run a tight string line approximately 150 mm above the ground, lifting the line where the slope changes direction. The fall can then be measured using a level or laser. For example, if the total fall is 400 mm over five panel bays, divide 400 mm by 5, giving an average fall of 80 mm per panel. This means one end of a panel may sit close to the ground while the other end may have an approximate 80 mm gap underneath, depending on site condition, this will allow you to know what the gap is and take required steps to cover gap a product that suits ,bricks or make a small concrete or timber plinth
After completion, level disturbed ground where practical, remove excess soil, and wipe down any soil, cement or residue from the Naichr posts, panels and rails. Final details may include end posts, corner posts, top finishes, caps or trims depending on the selected Naichr boundary fencing system.
Detailed Naichr fencing installation guides and wind-load information are being prepared. Please contact KOSP for current installation advice, drawings or project-specific requirements before commencing work.
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Images shown throughout this website are intended to demonstrate potential design applications and finished outcomes. Actual products, colours, textures, finishes and project results may vary from those illustrated.
Product Guides
Product information covering hemp panels, ceiling systems, flooring systems, insulation, hemp blocks, renders, coatings and acoustic solutions.
More product guides are coming soon. Please contact KOSP for current product details or project-specific advice.
Naichr Wall & Ceiling Boards
Naichr wall and ceiling boards are natural hemp-based internal lining boards designed for walls, ceilings and healthy interior building systems.
They provide an alternative to conventional internal lining materials and are suited to projects where natural materials, durability and sustainable construction are important.
Naichr boards can be used in:
Internal walls
Ceilings
Renovations
Healthy homes
Commercial interiors
Modular buildings
The boards are designed to work with suitable framing, insulation, coatings and natural finishing systems as part of a complete interior wall or ceiling solution.
More product guides are being added. Contact KOSP for current board details, technical sheets and project-specific product advice
Naichr Boundary Fencing Systems
Naichr boundary fencing systems are designed as modular post-and-panel fencing solutions for residential, rural and boundary applications. The system uses Naichr posts with female slots that allow panels or rails to slide neatly into position, creating a clean and consistent fence line.
Naichr fencing is suited to projects where durability, low maintenance, natural materials and long-term outdoor performance are important. Unlike conventional timber or metal fencing systems, Naichr posts are designed to resist rust, rot and termite damage, making them a practical option for Australian conditions.
The system can be used for boundary fencing, garden fencing, rural-style fencing, screening, privacy areas and outdoor feature fencing.
More Naichr fencing product guides are being added. Contact KOSP for current product information, drawings or project-specific advice.
Technical Articles
Educational resources covering breathable wall systems, thermal performance, acoustics, moisture control, vapour permeability and sustainable construction.
More technical articles are being added. Please contact KOSP if you need information for a specific project.
Ceiling Systems
Naichr wall and ceiling boards can form part of a internal lining system when used with suitable framing, insulation, coatings and mineral or lime-based finishes.
This approach can support healthier indoor environments, improved moisture control and more sustainable building design when correctly specified for the project.
More technical articles are being added, including, moisture control, thermal performance, acoustic performance and building systems. Contact KOSP for project-specific advice.
Why Modular Post-and-Panel Fencing Works
Modular post-and-panel fencing systems are designed to make installation cleaner, faster and more consistent. Instead of building a fence piece by piece on site, posts are positioned first and panels or rails are then fitted into the post slots to create a straight and repeatable fence line.
Naichr boundary fencing uses this approach with posts designed to hold panels or rails in the female section of the post. This helps simplify installation, reduce on-site cutting where panels are set out evenly, and create a strong, clean fencing system.
Because Naichr posts are not timber or steel, they are not affected by rust, rot or termite attack in the same way as conventional fencing materials. This supports long-term durability, especially around concrete footings and ground contact areas where many traditional fencing systems can fail over time.
More technical articles on fencing design, post spacing, slope installation and outdoor durability are being prepared.
Product Comparisons
Helpful comparisons between natural building systems and conventional construction materials.
More comparison guides are coming soon. Contact KOSP to discuss the best material options for your project.
Naichr Boards vs Conventional Plasterboard
Naichr wall and ceiling panels are designed as a natural internal lining option for projects seeking alternatives to conventional plasterboard.
Naichr panels are designed as a durable, impact-resistant internal lining option for projects where stronger wall and ceiling surfaces are preferred over conventional plasterboard. They are suited to homes, commercial interiors, modular buildings and high-use areas where everyday knocks, bumps and long-term performance need to be considered.
While plasterboard is widely used in standard construction, Naichr boards are suited to projects where natural materials, durability and sustainable building outcomes are important.
Naichr boards can be considered for healthy homes, renovations, commercial interiors, modular buildings and projects looking for more natural interior lining systems.
More product comparisons are being added, including hemp panels, insulation, acoustic systems, blocks, renders and conventional construction materials. Contact KOSP to discuss the best product option for your project.
Naichr Boundary Fencing vs Timber & Steel Fencing
Timber and steel fencing systems are common, but both materials have long-term maintenance considerations. Timber posts can shrink, rot, split or attract termites, especially where they are set into concrete or exposed to moisture. Steel posts can be strong, but they may corrode over time if protective coatings are damaged or if they are exposed to harsh ground and weather conditions.
Naichr boundary fencing is designed as a low-maintenance alternative using Naichr posts and panels or rails that are resistant to rust, rot and termite damage. The modular slot-in post design also allows panels to be installed in a clean, consistent way, helping create a neat boundary fence with a more modern finish.
For projects where appearance, durability and reduced maintenance are important, Naichr boundary fencing provides a practical alternative to conventional timber and metal fencing systems.
More fencing comparisons are being added. Contact KOSP to discuss the best fencing system for your project.
Downloads
Technical documents, brochures, installation guides, product information and specification resources.
Downloads are being updated. Please contact KOSP if you require a specific document.
Technical Documents & Product Information
KOSP downloads will include technical sheets, product brochures, installation guides, fixing details, specification notes and supporting product information for KOSP and Naichr building systems.
Available and upcoming documents may include:
Naichr wall and ceiling board technical sheets
Installation guides
Product brochures
Fixing and joint details
Material specifications
Acoustic system information
Hemp block and insulation documents
Render and finish system information
Downloads are being updated. Please contact KOSP if you require the latest technical sheet, installation guide or product information for your project.
Naichr Boundary Fencing Documents
Naichr boundary fencing documents will include product information, installation guides, post and panel details, footing guidance, slope installation notes, system drawings and project-specific information for residential, rural and boundary fencing applications.
Available and upcoming documents may include:
Naichr boundary fencing product guide
Naichr post and panel installation guide
Post spacing and set-out details
Slope and stepped fence installation notes
Corner post and end post details
Wind-load and footing information where available
Downloads are being updated. Please contact KOSP if you require current Naichr fencing information, drawings or installation advice.
Hemp Board Panels Australia — Why Naichr Is Different

Australian construction has relied on the same familiar internal wall and ceiling lining materials for decades.
But building products are changing.
Naichr is developing a new generation of hemp-based wall and ceiling panels designed to provide a tougher, more durable and more sustainable alternative for modern Australian construction.
Made predominantly from hemp shiv fibre with a natural resin binder, Naichr panels are designed for use on internal walls and ceilings in residential and commercial buildings.
What Are Naichr Hemp Board Panels?
Naichr wall and ceiling panels are made from approximately 90% hemp shiv fibre, with the remaining content comprising natural resin.
The result is a lightweight hemp-based panel designed around familiar building and installation methods.
For a standard 2400 mm × 1200 mm panel, the current Naichr panel weight is approximately 10.7 kg.
That equates to around 3.7 kg per square metre, making the panel relatively light and easy to handle on site.
Why Look Beyond Conventional Plasterboard?
Plasterboard has been used successfully in Australian buildings for many years, but it also has limitations.
When exposed to significant moisture or water damage, conventional gypsum-based linings can soften, deteriorate and lose strength.
Ceilings damaged by leaks or storms may require complete replacement.
Naichr is being developed to provide a tougher alternative.
Its hemp-based composition is designed around:
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water resistance
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resistance to deterioration
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resistance to rot
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resistance to twisting and buckling
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termite resistance
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improved durability
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long service life
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resistance to everyday impact and damage
Rather than simply recreating another plasterboard-style lining, Naichr is being developed as a new type of natural-fibre construction panel.
Designed for Walls and Ceilings
Naichr panels can be used as internal wall and ceiling linings.
The aim is to make adoption straightforward for builders and installers already familiar with conventional sheet products.
This includes compatibility with common fixing and finishing methods, while providing the benefits of a hemp-based panel.
Water and Moisture
One of the major areas of development for Naichr is improved resistance to moisture.
Conventional wall and ceiling linings can be vulnerable when exposed to water from:
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roof leaks
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plumbing failures
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storm damage
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condensation
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accidental water ingress
Naichr panels are designed so they do not readily soften or turn mushy when exposed to moisture.
That can provide an important durability advantage in both residential and commercial applications.
Mould and Indoor Environments
Moisture and mould are major concerns in Australian buildings.
No building product should be treated as a substitute for proper ventilation, waterproofing, drainage and maintenance.
However, selecting materials that are more resistant to moisture damage can form part of a healthier building strategy.
Naichr is being developed for use in wall and ceiling systems focused on durability, moisture management and healthier indoor spaces.
Termites and Rot
Traditional timber-based products can be vulnerable to termites, while many other natural materials can deteriorate when repeatedly exposed to moisture.
Naichr panels are designed to resist termite attack and rot, helping support a longer service life.
Australian Grown. Australian Manufactured.
One of the most important parts of the Naichr story is where the material comes from and where the products are intended to be made.
Naichr products are being developed around Australian-grown hemp and Australian manufacturing.
That provides an opportunity to:
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support Australian farmers
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create local manufacturing jobs
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strengthen domestic supply chains
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reduce reliance on imported finished building products
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develop products suited to Australian construction conditions
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grow a new natural-fibre building-products industry
Australia has the land, agricultural capability, construction knowledge and manufacturing skills to develop more building products locally.
Naichr is part of that opportunity.
Hemp Board Panels for Australian Construction
Searches for terms such as hemp board panels, hemp wall panels and hemp ceiling panels are increasing as architects, builders and homeowners look for alternatives to conventional materials.
Naichr is being developed specifically for this emerging market.
Potential applications include:
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internal wall linings
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ceiling linings
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residential construction
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commercial interiors
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renovations
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sustainable developments
More Than One Product
Naichr is not being developed as a single isolated panel.
It forms part of a broader range of hemp-based construction products being developed for the Australian building industry.
The objective is simple:
Replace more conventional building products with practical, durable natural-fibre alternatives.
Not products that require builders to completely change the way they work.
Products designed to be realistic replacements for materials already used every day.
Why This Matters
Sustainable construction will only become mainstream when sustainable products are also practical.
They need to be:
Easy to specify.
Easy to transport.
Easy to install.
Durable.
Competitive.
Available at scale.
Suitable for modern construction.
That is what Naichr is being developed to achieve.
Hemp Board Panels Australia
Naichr represents a new direction for Australian wall and ceiling linings.
A hemp-based panel designed around durability, natural materials, practical construction and Australian manufacturing.
The building industry has relied on the same materials for a long time.
Perhaps it is time to ask:
What should come next?
Australian Grown. Australian Manufactured. Built Naturally.
KOSP Construction Resources
Have a Question About Naichr?
What would you like to know about hemp board panels, wall linings, ceiling panels or natural building materials?
Send us your question or explore the Naichr range at:

WHAT ARE VOCs — AND WHY DO THEY MATTER IN YOUR HOME?

WHAT ARE VOCs — AND WHY DO THEY MATTER IN YOUR HOME?
When choosing building materials, most people look at strength, appearance, price and durability.
But there is another question worth asking:
What is this product releasing into the air inside the building?
VOCs — Volatile Organic Compounds — are chemicals that can be released into the air from some building products, finishes, adhesives, paints, sealants, furnishings and manufactured materials.
Some VOCs may only be noticeable as an odour. Others can contribute to poor indoor air quality, particularly when several emitting products are used together in a tightly sealed building with limited ventilation.
WHERE CAN VOCs COME FROM?
Depending on their formulation, VOC emissions may come from products such as:
• Paints and coatings
• Adhesives and sealants
• Manufactured boards
• Flooring products
• Cabinetry and furniture
• Synthetic finishes
• Cleaning products
• Some insulation and lining systems
This doesn't mean every manufactured building product is unsafe.
It means the materials selected for an indoor environment deserve consideration beyond simply how they look when the building is finished.
WHY INDOOR AIR QUALITY MATTERS
Modern buildings are becoming increasingly airtight to improve energy efficiency.
That can be a very good thing — but it also means ventilation and material selection become increasingly important.
If indoor materials release unwanted compounds, those emissions can remain within the occupied space unless the building has adequate ventilation and air exchange.
That is why architects, builders and homeowners are increasingly considering low-emission and natural-material building systems.
NATURAL DOESN'T AUTOMATICALLY MEAN ZERO VOC
This is important.
A product being natural or bio-based does not automatically prove that it has zero VOC emissions.
Binders, coatings, adhesives and finishes all need to be considered as part of the complete product.
Where a manufacturer makes a specific low-VOC, zero-VOC or emissions claim, it should ideally be supported by appropriate testing.
WHY KOSP IS FOCUSED ON NATURAL BUILDING SYSTEMS
KOSP's approach is to develop and supply building systems that make greater use of natural and bio-based materials.
These include:
• Naichr hemp-based building panels
• IsoHemp hemp blocks
• Gramitherm natural insulation
• Clay building products
• Lime and natural renders
Naichr wall and ceiling panels are being developed predominantly from hemp shiv fibre and bio-based binders, with the objective of creating practical natural-fibre alternatives to conventional lining products.
As development and testing continue, specific performance and emissions claims should be based on verified test results rather than assumptions.
HEALTHIER BUILDINGS NEED A COMPLETE APPROACH
Healthy indoor environments don't come from one product alone.
They come from combining:
Thoughtful material selection.
Ventilation.
Good design.
And products selected with indoor air quality in mind.
At KOSP, we believe sustainable construction should consider not only the energy used by a building — but also the environment we create for the people living and working inside it.
What are your walls, ceilings and finishes contributing to the air you breathe?
Learn more about natural building systems at:
Australian Grown. Australian Manufactured. Built Naturally.
36 dB Noise Reduction

36 dB Noise Reduction — Naichr Natural-Fibre Acoustic Panels
Noise is becoming a bigger issue in modern living.
Traffic, trucks, machinery, construction, commercial activity and increasingly dense residential areas can all affect the comfort of homes, workplaces and outdoor spaces.
That is why acoustic performance needs to be considered as part of good building design.
KOSP is developing Naichr natural-fibre acoustic panels as a practical alternative to more conventional noise-control systems.
Our current Naichr acoustic panel system has achieved approximately 36 dB sound reduction, demonstrating the potential of hemp-based materials in applications where noise control is important.
What does 36 dB reduction mean?
A reduction of 36 dB represents a substantial change in sound transmission through a barrier system.
In practical terms, reducing unwanted noise by this level can make a noticeable difference to the comfort of spaces affected by road traffic, machinery or other external noise sources.
Acoustic performance will always depend on the complete system, including panel thickness, installation method, joints, supports, overall wall construction and the type of noise being controlled.
For that reason, Naichr acoustic panels should be considered as part of a complete acoustic barrier system rather than simply as an individual sheet product.
Where can Naichr acoustic panels be used?
Potential applications include:
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boundary walls
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residential developments
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roadside noise barriers
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commercial projects
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workshops
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industrial areas
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plant and machinery enclosures
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internal acoustic separation
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infrastructure projects
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other noise-sensitive environments
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Natural-fibre construction with acoustic performance
Naichr acoustic panels are being developed using predominantly hemp-based natural-fibre materials.
The objective is to combine practical acoustic performance with a more sustainable material approach.
Rather than relying only on traditional steel, concrete or mineral-based acoustic systems, Naichr is being developed to provide another option for projects looking for both performance and lower-impact materials.
Designed for durability
Acoustic barriers can be exposed to demanding conditions, particularly when used outdoors.
Naichr panels are being developed with durability, moisture resistance and long service life in mind.
The aim is to create an acoustic product that is not only effective at reducing noise, but also practical for long-term use in Australian conditions.
Australian-developed natural-fibre building products
The Naichr acoustic panel forms part of a broader range of natural-fibre construction products being developed by KOSP.
The long-term objective is to replace more conventional building products with practical alternatives based around Australian-grown fibres and Australian manufacturing.
This has the potential to support:
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Australian manufacturing
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local jobs
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Australian agriculture
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stronger domestic supply chains
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more sustainable construction
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future export opportunities
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A quieter future, built naturally
Good acoustic design is about more than blocking sound.
It is about creating better places to live, work and spend time.
Naichr natural-fibre acoustic panels are being developed to help provide that outcome while supporting a more sustainable approach to construction.
36 dB noise reduction.
Natural-fibre construction.
Built for Australian conditions.
Australian Grown. Australian Manufactured. Built Naturally.
Find out more about the Naichr range at:
KOSP is the Major Supplier of IsoHemp Hemp Blocks in Australia

INSTALLING ISOHEMP BLOCKS — THE ESSENTIAL STEPS
IsoHemp hemp blocks are designed to be straightforward to install, but the key is getting the basics right from the start: keep the blocks dry, protect against rising damp, establish a perfectly level first course, maintain thin joints and use compatible finishes.
BEFORE YOU START
Keep pallets protected from rain and position them close to the work area to minimise handling. Open pallets should be re-covered at the end of the day so the blocks remain dry during construction.
1. PREPARE THE BASE
The substrate should be dry, clean and level.
IsoHemp blocks must be protected against rising damp, so a suitable damp-proof course should be installed before the first course is laid.
2. GET THE FIRST COURSE RIGHT
The first course controls the accuracy of the whole wall.
A mortar bed of approximately 10–20 mm can be used to level the first course, with the blocks checked carefully for level and alignment. Vertical joints are kept thin, at approximately 3 mm.
3. LAY SUBSEQUENT COURSES
Subsequent blocks are laid using IsoHemp adhesive mortar.
The installation guide specifies approximately 7–8 litres of water per 25 kg bag of adhesive mortar.
Adhesive is applied across the full horizontal face of the block, and vertical joints are also bonded.
Courses should be staggered, with a minimum overlap of about one-third of the block length. Finished joints are approximately 3 mm thick. IsoHemp -
4. FIX THE BLOCKWORK TO THE STRUCTURE
IsoHemp blockwork must be connected back to the supporting structure.
Depending on the application, this can be done using masonry hooks, connecting angles or other approved mechanical fixings.
For wall lining and framed construction, the guide generally specifies around five fixings per square metre.
5. CUTTING AND SERVICES
IsoHemp blocks are easy to cut and shape.
Suitable tools include an alligator saw, large-tooth hand saw or bandsaw. Channels for electrical and other services can also be cut directly into the blocks before being filled with a compatible finishing material.
6. EXTERNAL WALLS
External hemp blockwork must be protected from rising damp and weather exposure.
The installation guide specifies that external blockwork should begin at least 150 mm above external ground level.
7. WINDOWS AND OPENINGS
IsoHemp offers prefabricated lintels for openings, while suitable angles can also be used in certain applications.
Lintels require adequate bearing at each side of the opening and must be selected according to the span and block thickness.
8. FINISHES
One of the important advantages of IsoHemp is its compatibility with breathable finishes.
External mineral renders can be used, while internally the system is well suited to lime and clay plasters.
Lime plaster allows water vapour to pass through the wall, helping maintain the breathable characteristics of the system. Clay plasters are also specifically identified as compatible with IsoHemp.
KEEP IT SIMPLE
The basic installation principle is straightforward:
Protect from moisture → level the first course → use thin adhesive joints → stagger the blocks → fix back to the structure → finish with compatible breathable materials.
The full IsoHemp installation guide should always be followed for project-specific details, openings, fixings, finishes and specialised applications.
IsoHemp — a simple block system designed to form part of a breathable, high-performance building envelope.
INSULATION COMPARISON — LOOKING BEYOND R-VALUE
A practical comparison of common insulation types based on thermal performance, breathability, moisture behaviour, acoustic comfort and overall building health.
Opening paragraph:
When insulation is discussed, the conversation usually starts with R-value. While thermal resistance is important, it is not the only factor that affects how a building performs. Different insulation materials can behave very differently when moisture, breathability, acoustic comfort, indoor air quality and embodied impact are considered. The comparison below provides a simple overview of some of the key differences between common insulation materials used in building systems.

This comparison is not intended to say that every insulation product is suited to every application. Rather, it is intended to highlight that insulation should be assessed as part of a complete wall or roof system, not simply as a number. In many projects, factors such as vapour permeability, moisture regulation, acoustic performance and environmental impact are just as important as thermal resistance.
Then a short closing paragraph:
At KOSP, we are particularly interested in insulation materials that contribute to healthier, more breathable and more sustainable buildings. That is why products such as Gramitherm are of interest — not simply because of thermal performance, but because they also support moisture regulation, acoustic comfort and lower-impact construction.
INSTALLATION AND AIRBORNE FIBRES
One of the practical differences between insulation materials is what happens during cutting, handling and installation.
Gramitherm is a soft grass-fibre insulation designed to be cut and fitted without the same type of brittle mineral or glass fibres associated with glass wool and mineral wool products. This can make installation more comfortable and reduce irritation during normal handling.
By comparison, some conventional fibrous insulation products can release dust or fibres when cut or disturbed, so installers may need additional protective equipment and dust-control measures depending on the product and installation conditions.
Polyester insulation does not contain glass or mineral fibres, but cutting and handling can still create loose fibres or dust. The key point is that installer comfort and airborne particulate exposure should be considered alongside R-value, fire performance and cost.
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