Frequently Asked Questions
Stacks
What's included in a complete Stack?
Each Stack arrives as a complete, structural home, including straw panel construction, steel framework, integrated electrical and plumbing systems, premium fixtures, and your chosen finishes. Additional features, such as fireplaces, hot tubs, and luxury upgrades, can be added to create your perfect living space.
What size options are available for Stacks?
Our Stacks are built using 3.6m x 3.6m modules, with Stack One being a single 41m² unit. We can configure multiple modules for larger homes and offer double-storey options when additional space is required.
Can I customise the layout of my Stack?
Absolutely. While our pre-designed layouts optimise space and flow, we work with you to create custom configurations that suit your specific needs and site requirements.
How long does it take to manufacture a Stack?
Production typically takes 12-16 weeks from final design approval, depending on the customisation level and the current production schedule. We'll provide specific timelines during your consultation.
Do Stacks come fully furnished?
Stacks include all built-in fixtures, appliances, and finishes, but furniture and luxury additions, such as fireplaces or hot tubs, are optional upgrades that can be added to your specification.
What foundation requirements do Stacks have?
We utilise precision-engineered concrete foundation pads, specifically designed for your site's conditions and soil requirements. Our engineers provide detailed foundation specifications as part of your project documentation.
Do you offer financing options?
We're currently developing financing partnerships to make Stack ownership more accessible. Contact us for the latest options and to discuss payment arrangements.
Are there additional costs for delivery?
Delivery costs vary based on your location and site accessibility. We provide transparent delivery pricing during your quote process, with no hidden fees.
Do you work with architects and designers?
Yes, we collaborate with our in-house team of architects, engineers, and designers, and we're happy to work alongside your preferred professionals to integrate Stack systems into your vision.
Can Stacks be completely off-grid?
Absolutely. Complete off-grid capability requires additional systems, including solar power, battery storage, water collection, and wastewater treatment, which can be integrated into your Stack specification.
Can Stacks be connected to municipal services if desired?
Yes, Stacks can connect to municipal water, electricity, and sewerage systems, giving you the flexibility to choose your level of independence.
Do you assist with building approvals?
We provide comprehensive technical drawings and can help with municipal submissions and approvals for an additional fee, ensuring your project meets all local requirements.
Straw Panels
What thicknesses are available for your straw panels?
Our panels are available in three standard thicknesses: 20mm, 40mm, and 60mm, allowing you to select the optimal specification for your acoustic, thermal, and structural requirements.
What are the standard dimensions of your panels?
Panels are manufactured with a width of 600mm and lengths up to 3200mm. We also produce panels with a width of 1200mm for larger applications. All panels are cut to your exact project specifications.
Can panels be cut to custom sizes?
Yes, panels can be cut to any length up to 3200mm to match your specific project requirements. We provide pre-cut panels, delivered ready for installation, which eliminates on-site cutting time.
What's the weight of each panel size?
Panel weights vary by thickness: 20mm panels average 500 kg/m³, while 40mm and 60mm panels average 380 kg/m³. For example, a 600mm x 2400mm x 60mm panel weighs approximately 33 kg, making it lighter than equivalent cement board alternatives.
How many panels do I need for my project?
Calculate your requirements by determining the total wall and ceiling area, then dividing by the individual panel coverage. Contact our technical team with your drawings to receive accurate material take-offs and system recommendations tailored to your specific application.
What certifications do your products have?
Our panels are marked with CE and have undergone comprehensive testing at Omega Testing House. We're currently finalising Agrément certification to provide additional third-party validation for specifiers and regulatory approval.
How do your panels compare to drywall?
Our panels deliver 10 times the impact resistance of standard plasterboard, while providing superior fire resistance without toxic fume emissions. They offer natural acoustic dampening and thermal insulation properties that drywall cannot match, plus carbon-negative environmental credentials.
What advantages do you have over brick-and-mortar construction?
Significantly faster installation, superior thermal performance, immediate acoustic control, and carbon sequestration rather than emissions. Installation requires standard tools and trades, eliminating specialised masonry skills while delivering better environmental performance.
Why choose straw panels over MgO boards or hemp boards?
Our panels offer competitive pricing with superior local supply reliability. Unlike imported MgO boards, we eliminate supply chain risks while matching fire performance. Compared to hemp boards, we provide better moisture resistance and more consistent availability at lower cost points.
What's the fire rating of your panels?
Our panels achieve an E rating under EN 11925 standards, providing adequate barrier protection against fire penetration and spread. When exposed to flame, the Kraft liner chars off. At the same time, the compressed straw core carbonises, creating an extremely effective fire barrier without releasing toxic fumes, flaming droplets, or dense smoke.
How do your panels perform in moisture/humidity?
Our panels perform exceptionally well in high-humidity environments. The straw is prepared using steam and borax treatment during manufacturing, which enhances moisture resistance. The panels are 7 times more resistant to mould than traditional plaster materials, with the solid panel core minimising condensation potential. They're vapour-diffusant and work well in areas of high humidity.
What's the thermal resistance value?
Our 60mm panels offer a thermal resistance of 0.74 W/mK and a thermal conductivity of 0.081 m²/W/K. This superior thermal performance reduces HVAC loads and energy consumption compared to conventional wall systems.
How effective is the sound absorption?
Our panels are particularly effective at dampening low-frequency sound associated with aircraft, heavy industry and performing spaces. Standard panels achieve an NRC (Noise Reduction Coefficient) of 0.49, with specialist acoustic finishes achieving even higher performance ratings for critical acoustic applications.
What's the expected lifespan of your products?
Independent testing has demonstrated that properly manufactured straw panels retain their performance characteristics for over 50 years without degradation. When installed correctly in interior applications, they provide exceptional longevity as a low-maintenance building material.
Do panels attract pests or insects?
The high-pressure, high-temperature steam manufacturing process provides sterilisation benefits that inhibit microbial growth. The manufacturing process destroys elements in the straw fibre that could attract insects. The closed panel environment and controlled moisture content prevent pest colonisation.
How do panels perform in coastal/high-salt environments?
As interior-only products, our panels are protected from direct salt exposure when installed adequately within weathertight building envelopes. The panels' vapour-diffusant properties and excellent humidity resistance make them suitable for coastal climates, with proven performance in high-humidity coastal regions where proper building envelope protection is maintained.
Sustainability & Environmental Impact
How much CO₂ does each panel capture?
Every square metre of a 60mm panel extracts and stores 31kg CO₂e from the atmosphere. The wheat straw captured this carbon during its growth phase and remains permanently sequestered within the compressed panel structure throughout its lifespan.
Are your products truly carbon-negative?
Our panels themselves are genuinely carbon-negative, actively removing more CO₂ from the atmosphere than was used in their production. However, our complete Stack homes incorporate various other building materials and components that prevent the entire system from achieving full carbon-negative status, though they remain significantly more sustainable than conventional construction.
What happens to panels at the end of life?
When panels reach the end of their useful life, they can be disposed of in a standard landfill where they will naturally biodegrade without a harmful environmental impact. Alternatively, they can be composted or recycled for use in other applications, thereby maintaining their benefits within a circular economy.
How do you source your straw materials?
We work directly with local farmers throughout the Western Cape, South Africa, purchasing their wheat straw that would otherwise be burned or discarded after harvest. This creates an additional revenue stream for farmers while providing us with consistent, high-quality raw materials.
What's your manufacturing process's environmental impact?
Our manufacturing facilities operate on ~80% solar power for both panel and Stack production. During the winter months, we occasionally trickle charge our battery systems in the evening when solar generation is insufficient; however, the vast majority of our energy comes from renewable sources.
Installation & Assembly
How difficult is it to install your panels?
Installation is straightforward using our modular system design. Panels arrive pre-cut and finished, eliminating the need for on-site preparation time. Our biscuit connector system enables panels to snap together along their edges. At the same time, standard screw fixings secure the panels to the framing. The system is designed for efficient installation without requiring specialised construction experience.
Do I need special tools for installation?
Standard construction tools are sufficient for most installation work. You'll need basic power tools for screw fixings, cutting tools for any on-site modifications, and our proprietary biscuit connectors for panel-to-panel joins. We also provide aluminium sealing tape for cut edges and light frame steel sections for trim finishing.
How long does installation typically take?
Installation speed varies by application, but our modular system significantly accelerates construction timelines. Wall installations using the biscuit connector system also proceed rapidly compared to traditional methods.
Do you provide installation services?
Yes, we can provide professional installation services across South Africa through our network of trained installers. Our teams ensure that proper installation techniques and system performance are maintained while adhering to project schedules.
Can your panels be used with standard construction techniques?
Yes, our panels are designed to integrate with standard timber and steel framing systems. However, we recommend using our proprietary connection systems and installation methods for optimal performance, speed, and to ensure warranty compliance. Traditional techniques can be used, but may not fully leverage the benefits of our engineered system.
Shipping & Delivery
Where do you deliver to?
We deliver throughout all regions of South Africa, from major urban centres to remote rural locations. Our logistics team coordinates nationwide delivery to bring your Stack directly to your prepared site.
What are your delivery timeframes?
Delivery is scheduled during your final production weeks, typically 2-4 weeks before completion. We coordinate closely with you to ensure site readiness and confirm exact delivery dates that work with your schedule.
Do you deliver to remote or rural areas?
Yes, we deliver to remote and rural locations throughout South Africa. The only requirement is adequate road access for our delivery vehicles and crane equipment to safely position your Stack.
Can delivery be scheduled for specific times?
Absolutely. We work with you to schedule delivery and installation at mutually convenient times and dates, ensuring the process fits seamlessly into your project timeline and personal schedule.
Frequently Asked Questions
Stacks
What's included in a complete Stack?
Each Stack arrives as a complete, structural home, including straw panel construction, steel framework, integrated electrical and plumbing systems, premium fixtures, and your chosen finishes. Additional features, such as fireplaces, hot tubs, and luxury upgrades, can be added to create your perfect living space.
What size options are available for Stacks?
Our Stacks are built using 3.6m x 3.6m modules, with Stack One being a single 41m² unit. We can configure multiple modules for larger homes and offer double-storey options when additional space is required.
Can I customise the layout of my Stack?
Absolutely. While our pre-designed layouts optimise space and flow, we work with you to create custom configurations that suit your specific needs and site requirements.
How long does it take to manufacture a Stack?
Production typically takes 12-16 weeks from final design approval, depending on the customisation level and the current production schedule. We'll provide specific timelines during your consultation.
Do Stacks come fully furnished?
Stacks include all built-in fixtures, appliances, and finishes, but furniture and luxury additions, such as fireplaces or hot tubs, are optional upgrades that can be added to your specification.
What foundation requirements do Stacks have?
We utilise precision-engineered concrete foundation pads, specifically designed for your site's conditions and soil requirements. Our engineers provide detailed foundation specifications as part of your project documentation.
Do you offer financing options?
We're currently developing financing partnerships to make Stack ownership more accessible. Contact us for the latest options and to discuss payment arrangements.
Are there additional costs for delivery?
Delivery costs vary based on your location and site accessibility. We provide transparent delivery pricing during your quote process, with no hidden fees.
Do you work with architects and designers?
Yes, we collaborate with our in-house team of architects, engineers, and designers, and we're happy to work alongside your preferred professionals to integrate Stack systems into your vision.
Can Stacks be completely off-grid?
Absolutely. Complete off-grid capability requires additional systems, including solar power, battery storage, water collection, and wastewater treatment, which can be integrated into your Stack specification.
Can Stacks be connected to municipal services if desired?
Yes, Stacks can connect to municipal water, electricity, and sewerage systems, giving you the flexibility to choose your level of independence.
Do you assist with building approvals?
We provide comprehensive technical drawings and can help with municipal submissions and approvals for an additional fee, ensuring your project meets all local requirements.
Straw Panels
What thicknesses are available for your straw panels?
Our panels are available in three standard thicknesses: 20mm, 40mm, and 60mm, allowing you to select the optimal specification for your acoustic, thermal, and structural requirements.
What are the standard dimensions of your panels?
Panels are manufactured with a width of 600mm and lengths up to 3200mm. We also produce panels with a width of 1200mm for larger applications. All panels are cut to your exact project specifications.
Can panels be cut to custom sizes?
Yes, panels can be cut to any length up to 3200mm to match your specific project requirements. We provide pre-cut panels, delivered ready for installation, which eliminates on-site cutting time.
What's the weight of each panel size?
Panel weights vary by thickness: 20mm panels average 500 kg/m³, while 40mm and 60mm panels average 380 kg/m³. For example, a 600mm x 2400mm x 60mm panel weighs approximately 33 kg, making it lighter than equivalent cement board alternatives.
How many panels do I need for my project?
Calculate your requirements by determining the total wall and ceiling area, then dividing by the individual panel coverage. Contact our technical team with your drawings to receive accurate material take-offs and system recommendations tailored to your specific application.
What certifications do your products have?
Our panels are marked with CE and have undergone comprehensive testing at Omega Testing House. We're currently finalising Agrément certification to provide additional third-party validation for specifiers and regulatory approval.
How do your panels compare to drywall?
Our panels deliver 10 times the impact resistance of standard plasterboard, while providing superior fire resistance without toxic fume emissions. They offer natural acoustic dampening and thermal insulation properties that drywall cannot match, plus carbon-negative environmental credentials.
What advantages do you have over brick-and-mortar construction?
Significantly faster installation, superior thermal performance, immediate acoustic control, and carbon sequestration rather than emissions. Installation requires standard tools and trades, eliminating specialised masonry skills while delivering better environmental performance.
Why choose straw panels over MgO boards or hemp boards?
Our panels offer competitive pricing with superior local supply reliability. Unlike imported MgO boards, we eliminate supply chain risks while matching fire performance. Compared to hemp boards, we provide better moisture resistance and more consistent availability at lower cost points.
What's the fire rating of your panels?
Our panels achieve an E rating under EN 11925 standards, providing adequate barrier protection against fire penetration and spread. When exposed to flame, the Kraft liner chars off. At the same time, the compressed straw core carbonises, creating an extremely effective fire barrier without releasing toxic fumes, flaming droplets, or dense smoke.
How do your panels perform in moisture/humidity?
Our panels perform exceptionally well in high-humidity environments. The straw is prepared using steam and borax treatment during manufacturing, which enhances moisture resistance. The panels are 7 times more resistant to mould than traditional plaster materials, with the solid panel core minimising condensation potential. They're vapour-diffusant and work well in areas of high humidity.
What's the thermal resistance value?
Our 60mm panels offer a thermal resistance of 0.74 W/mK and a thermal conductivity of 0.081 m²/W/K. This superior thermal performance reduces HVAC loads and energy consumption compared to conventional wall systems.
How effective is the sound absorption?
Our panels are particularly effective at dampening low-frequency sound associated with aircraft, heavy industry and performing spaces. Standard panels achieve an NRC (Noise Reduction Coefficient) of 0.49, with specialist acoustic finishes achieving even higher performance ratings for critical acoustic applications.
What's the expected lifespan of your products?
Independent testing has demonstrated that properly manufactured straw panels retain their performance characteristics for over 50 years without degradation. When installed correctly in interior applications, they provide exceptional longevity as a low-maintenance building material.
Do panels attract pests or insects?
The high-pressure, high-temperature steam manufacturing process provides sterilisation benefits that inhibit microbial growth. The manufacturing process destroys elements in the straw fibre that could attract insects. The closed panel environment and controlled moisture content prevent pest colonisation.
How do panels perform in coastal/high-salt environments?
As interior-only products, our panels are protected from direct salt exposure when installed adequately within weathertight building envelopes. The panels' vapour-diffusant properties and excellent humidity resistance make them suitable for coastal climates, with proven performance in high-humidity coastal regions where proper building envelope protection is maintained.
Sustainability & Environmental Impact
How much CO₂ does each panel capture?
Every square metre of a 60mm panel extracts and stores 31kg CO₂e from the atmosphere. The wheat straw captured this carbon during its growth phase and remains permanently sequestered within the compressed panel structure throughout its lifespan.
Are your products truly carbon-negative?
Our panels themselves are genuinely carbon-negative, actively removing more CO₂ from the atmosphere than was used in their production. However, our complete Stack homes incorporate various other building materials and components that prevent the entire system from achieving full carbon-negative status, though they remain significantly more sustainable than conventional construction.
What happens to panels at the end of life?
When panels reach the end of their useful life, they can be disposed of in a standard landfill where they will naturally biodegrade without a harmful environmental impact. Alternatively, they can be composted or recycled for use in other applications, thereby maintaining their benefits within a circular economy.
How do you source your straw materials?
We work directly with local farmers throughout the Western Cape, South Africa, purchasing their wheat straw that would otherwise be burned or discarded after harvest. This creates an additional revenue stream for farmers while providing us with consistent, high-quality raw materials.
What's your manufacturing process's environmental impact?
Our manufacturing facilities operate on ~80% solar power for both panel and Stack production. During the winter months, we occasionally trickle charge our battery systems in the evening when solar generation is insufficient; however, the vast majority of our energy comes from renewable sources.
Installation & Assembly
How difficult is it to install your panels?
Installation is straightforward using our modular system design. Panels arrive pre-cut and finished, eliminating the need for on-site preparation time. Our biscuit connector system enables panels to snap together along their edges. At the same time, standard screw fixings secure the panels to the framing. The system is designed for efficient installation without requiring specialised construction experience.
Do I need special tools for installation?
Standard construction tools are sufficient for most installation work. You'll need basic power tools for screw fixings, cutting tools for any on-site modifications, and our proprietary biscuit connectors for panel-to-panel joins. We also provide aluminium sealing tape for cut edges and light frame steel sections for trim finishing.
How long does installation typically take?
Installation speed varies by application, but our modular system significantly accelerates construction timelines. Wall installations using the biscuit connector system also proceed rapidly compared to traditional methods.
Do you provide installation services?
Yes, we can provide professional installation services across South Africa through our network of trained installers. Our teams ensure that proper installation techniques and system performance are maintained while adhering to project schedules.
Can your panels be used with standard construction techniques?
Yes, our panels are designed to integrate with standard timber and steel framing systems. However, we recommend using our proprietary connection systems and installation methods for optimal performance, speed, and to ensure warranty compliance. Traditional techniques can be used, but may not fully leverage the benefits of our engineered system.
Shipping & Delivery
Where do you deliver to?
We deliver throughout all regions of South Africa, from major urban centres to remote rural locations. Our logistics team coordinates nationwide delivery to bring your Stack directly to your prepared site.
What are your delivery timeframes?
Delivery is scheduled during your final production weeks, typically 2-4 weeks before completion. We coordinate closely with you to ensure site readiness and confirm exact delivery dates that work with your schedule.
Do you deliver to remote or rural areas?
Yes, we deliver to remote and rural locations throughout South Africa. The only requirement is adequate road access for our delivery vehicles and crane equipment to safely position your Stack.
Can delivery be scheduled for specific times?
Absolutely. We work with you to schedule delivery and installation at mutually convenient times and dates, ensuring the process fits seamlessly into your project timeline and personal schedule.
Frequently Asked Questions
Stacks
What's included in a complete Stack?
Each Stack arrives as a complete, structural home, including straw panel construction, steel framework, integrated electrical and plumbing systems, premium fixtures, and your chosen finishes. Additional features, such as fireplaces, hot tubs, and luxury upgrades, can be added to create your perfect living space.
What size options are available for Stacks?
Our Stacks are built using 3.6m x 3.6m modules, with Stack One being a single 41m² unit. We can configure multiple modules for larger homes and offer double-storey options when additional space is required.
Can I customise the layout of my Stack?
Absolutely. While our pre-designed layouts optimise space and flow, we work with you to create custom configurations that suit your specific needs and site requirements.
How long does it take to manufacture a Stack?
Production typically takes 12-16 weeks from final design approval, depending on the customisation level and the current production schedule. We'll provide specific timelines during your consultation.
Do Stacks come fully furnished?
Stacks include all built-in fixtures, appliances, and finishes, but furniture and luxury additions, such as fireplaces or hot tubs, are optional upgrades that can be added to your specification.
What foundation requirements do Stacks have?
We utilise precision-engineered concrete foundation pads, specifically designed for your site's conditions and soil requirements. Our engineers provide detailed foundation specifications as part of your project documentation.
Do you offer financing options?
We're currently developing financing partnerships to make Stack ownership more accessible. Contact us for the latest options and to discuss payment arrangements.
Are there additional costs for delivery?
Delivery costs vary based on your location and site accessibility. We provide transparent delivery pricing during your quote process, with no hidden fees.
Do you work with architects and designers?
Yes, we collaborate with our in-house team of architects, engineers, and designers, and we're happy to work alongside your preferred professionals to integrate Stack systems into your vision.
Can Stacks be completely off-grid?
Absolutely. Complete off-grid capability requires additional systems, including solar power, battery storage, water collection, and wastewater treatment, which can be integrated into your Stack specification.
Can Stacks be connected to municipal services if desired?
Yes, Stacks can connect to municipal water, electricity, and sewerage systems, giving you the flexibility to choose your level of independence.
Do you assist with building approvals?
We provide comprehensive technical drawings and can help with municipal submissions and approvals for an additional fee, ensuring your project meets all local requirements.
Straw Panels
What thicknesses are available for your straw panels?
Our panels are available in three standard thicknesses: 20mm, 40mm, and 60mm, allowing you to select the optimal specification for your acoustic, thermal, and structural requirements.
What are the standard dimensions of your panels?
Panels are manufactured with a width of 600mm and lengths up to 3200mm. We also produce panels with a width of 1200mm for larger applications. All panels are cut to your exact project specifications.
Can panels be cut to custom sizes?
Yes, panels can be cut to any length up to 3200mm to match your specific project requirements. We provide pre-cut panels, delivered ready for installation, which eliminates on-site cutting time.
What's the weight of each panel size?
Panel weights vary by thickness: 20mm panels average 500 kg/m³, while 40mm and 60mm panels average 380 kg/m³. For example, a 600mm x 2400mm x 60mm panel weighs approximately 33 kg, making it lighter than equivalent cement board alternatives.
How many panels do I need for my project?
Calculate your requirements by determining the total wall and ceiling area, then dividing by the individual panel coverage. Contact our technical team with your drawings to receive accurate material take-offs and system recommendations tailored to your specific application.
What certifications do your products have?
Our panels are marked with CE and have undergone comprehensive testing at Omega Testing House. We're currently finalising Agrément certification to provide additional third-party validation for specifiers and regulatory approval.
How do your panels compare to drywall?
Our panels deliver 10 times the impact resistance of standard plasterboard, while providing superior fire resistance without toxic fume emissions. They offer natural acoustic dampening and thermal insulation properties that drywall cannot match, plus carbon-negative environmental credentials.
What advantages do you have over brick-and-mortar construction?
Significantly faster installation, superior thermal performance, immediate acoustic control, and carbon sequestration rather than emissions. Installation requires standard tools and trades, eliminating specialised masonry skills while delivering better environmental performance.
Why choose straw panels over MgO boards or hemp boards?
Our panels offer competitive pricing with superior local supply reliability. Unlike imported MgO boards, we eliminate supply chain risks while matching fire performance. Compared to hemp boards, we provide better moisture resistance and more consistent availability at lower cost points.
What's the fire rating of your panels?
Our panels achieve an E rating under EN 11925 standards, providing adequate barrier protection against fire penetration and spread. When exposed to flame, the Kraft liner chars off. At the same time, the compressed straw core carbonises, creating an extremely effective fire barrier without releasing toxic fumes, flaming droplets, or dense smoke.
How do your panels perform in moisture/humidity?
Our panels perform exceptionally well in high-humidity environments. The straw is prepared using steam and borax treatment during manufacturing, which enhances moisture resistance. The panels are 7 times more resistant to mould than traditional plaster materials, with the solid panel core minimising condensation potential. They're vapour-diffusant and work well in areas of high humidity.
What's the thermal resistance value?
Our 60mm panels offer a thermal resistance of 0.74 W/mK and a thermal conductivity of 0.081 m²/W/K. This superior thermal performance reduces HVAC loads and energy consumption compared to conventional wall systems.
How effective is the sound absorption?
Our panels are particularly effective at dampening low-frequency sound associated with aircraft, heavy industry and performing spaces. Standard panels achieve an NRC (Noise Reduction Coefficient) of 0.49, with specialist acoustic finishes achieving even higher performance ratings for critical acoustic applications.
What's the expected lifespan of your products?
Independent testing has demonstrated that properly manufactured straw panels retain their performance characteristics for over 50 years without degradation. When installed correctly in interior applications, they provide exceptional longevity as a low-maintenance building material.
Do panels attract pests or insects?
The high-pressure, high-temperature steam manufacturing process provides sterilisation benefits that inhibit microbial growth. The manufacturing process destroys elements in the straw fibre that could attract insects. The closed panel environment and controlled moisture content prevent pest colonisation.
How do panels perform in coastal/high-salt environments?
As interior-only products, our panels are protected from direct salt exposure when installed adequately within weathertight building envelopes. The panels' vapour-diffusant properties and excellent humidity resistance make them suitable for coastal climates, with proven performance in high-humidity coastal regions where proper building envelope protection is maintained.
Sustainability & Environmental Impact
How much CO₂ does each panel capture?
Every square metre of a 60mm panel extracts and stores 31kg CO₂e from the atmosphere. The wheat straw captured this carbon during its growth phase and remains permanently sequestered within the compressed panel structure throughout its lifespan.
Are your products truly carbon-negative?
Our panels themselves are genuinely carbon-negative, actively removing more CO₂ from the atmosphere than was used in their production. However, our complete Stack homes incorporate various other building materials and components that prevent the entire system from achieving full carbon-negative status, though they remain significantly more sustainable than conventional construction.
What happens to panels at the end of life?
When panels reach the end of their useful life, they can be disposed of in a standard landfill where they will naturally biodegrade without a harmful environmental impact. Alternatively, they can be composted or recycled for use in other applications, thereby maintaining their benefits within a circular economy.
How do you source your straw materials?
We work directly with local farmers throughout the Western Cape, South Africa, purchasing their wheat straw that would otherwise be burned or discarded after harvest. This creates an additional revenue stream for farmers while providing us with consistent, high-quality raw materials.
What's your manufacturing process's environmental impact?
Our manufacturing facilities operate on ~80% solar power for both panel and Stack production. During the winter months, we occasionally trickle charge our battery systems in the evening when solar generation is insufficient; however, the vast majority of our energy comes from renewable sources.
Installation & Assembly
How difficult is it to install your panels?
Installation is straightforward using our modular system design. Panels arrive pre-cut and finished, eliminating the need for on-site preparation time. Our biscuit connector system enables panels to snap together along their edges. At the same time, standard screw fixings secure the panels to the framing. The system is designed for efficient installation without requiring specialised construction experience.
Do I need special tools for installation?
Standard construction tools are sufficient for most installation work. You'll need basic power tools for screw fixings, cutting tools for any on-site modifications, and our proprietary biscuit connectors for panel-to-panel joins. We also provide aluminium sealing tape for cut edges and light frame steel sections for trim finishing.
How long does installation typically take?
Installation speed varies by application, but our modular system significantly accelerates construction timelines. Wall installations using the biscuit connector system also proceed rapidly compared to traditional methods.
Do you provide installation services?
Yes, we can provide professional installation services across South Africa through our network of trained installers. Our teams ensure that proper installation techniques and system performance are maintained while adhering to project schedules.
Can your panels be used with standard construction techniques?
Yes, our panels are designed to integrate with standard timber and steel framing systems. However, we recommend using our proprietary connection systems and installation methods for optimal performance, speed, and to ensure warranty compliance. Traditional techniques can be used, but may not fully leverage the benefits of our engineered system.
Shipping & Delivery
Where do you deliver to?
We deliver throughout all regions of South Africa, from major urban centres to remote rural locations. Our logistics team coordinates nationwide delivery to bring your Stack directly to your prepared site.
What are your delivery timeframes?
Delivery is scheduled during your final production weeks, typically 2-4 weeks before completion. We coordinate closely with you to ensure site readiness and confirm exact delivery dates that work with your schedule.
Do you deliver to remote or rural areas?
Yes, we deliver to remote and rural locations throughout South Africa. The only requirement is adequate road access for our delivery vehicles and crane equipment to safely position your Stack.
Can delivery be scheduled for specific times?
Absolutely. We work with you to schedule delivery and installation at mutually convenient times and dates, ensuring the process fits seamlessly into your project timeline and personal schedule.
Join visionaries creating intentional spaces.
Get design inspiration, off-grid mastery, and stories from those who've chosen self-sufficient living.
Join visionaries creating intentional spaces.
Get design inspiration, off-grid mastery, and stories from those who've chosen self-sufficient living.
Join visionaries creating intentional spaces.
Get design inspiration, off-grid mastery, and stories from those who've chosen self-sufficient living.