
HEMP INSULATION
RespiraWool
RespiraWool is a natural hemp-fibre insulation that regulates heat, balances moisture and softens sound throughout the home. Made from renewable, non-toxic fibres, it offers high thermal comfort with a lighter environmental footprint.

HEMP INSULATION
RespiraWool
RespiraWool is a natural hemp-fibre insulation that regulates heat, balances moisture and softens sound throughout the home. Made from renewable, non-toxic fibres, it offers high thermal comfort with a lighter environmental footprint.

HEMP INSULATION
RespiraWool
RespiraWool is a natural hemp-fibre insulation that regulates heat, balances moisture and softens sound throughout the home. Made from renewable, non-toxic fibres, it offers high thermal comfort with a lighter environmental footprint.



What it is
RespiraWool is firm, flexible insulation batt made from processed hemp fibre. The fibres are mechanically tangled into a durable mat, giving you a breathable, non-toxic material that fits neatly into walls, ceilings and floors. It provides steady thermal comfort while supporting a healthier indoor environment.
Key Benefits over synthetic batt insulations:
• Dries out and desorbs moisture faster
• Insulates better under moist conditions that synthetics (think gore-tex in the rain versus cheap plastic garments)
• Holds shape, stays solid, and lasts for decades. Doesn’t sag like synthetics
• Brilliant for the planet and your lungs
What it is
RespiraWool is firm, flexible insulation batt made from processed hemp fibre. The fibres are mechanically tangled into a durable mat, giving you a breathable, non-toxic material that fits neatly into walls, ceilings and floors. It provides steady thermal comfort while supporting a healthier indoor environment.
Key Benefits over synthetic batt insulations:
• Dries out and desorbs moisture faster
• Insulates better under moist conditions that synthetics (think gore-tex in the rain versus cheap plastic garments)
• Holds shape, stays solid, and lasts for decades. Doesn’t sag like synthetics
• Brilliant for the planet and your lungs
What it is
RespiraWool is firm, flexible insulation batt made from processed hemp fibre. The fibres are mechanically tangled into a durable mat, giving you a breathable, non-toxic material that fits neatly into walls, ceilings and floors. It provides steady thermal comfort while supporting a healthier indoor environment.
Key Benefits over synthetic batt insulations:
• Dries out and desorbs moisture faster
• Insulates better under moist conditions that synthetics (think gore-tex in the rain versus cheap plastic garments)
• Holds shape, stays solid, and lasts for decades. Doesn’t sag like synthetics
• Brilliant for the planet and your lungs
How it works
RespiraWool sits within the wall or ceiling cavity, where its natural fibres trap air to moderate heat and dampen sound. Because hemp naturally manages moisture, the insulation helps keep the structure dry and reduces the conditions that allow mould or stale indoor air to develop. Once installed, it works quietly in the background to keep your home feeling settled year-round.
How it works
RespiraWool sits within the wall or ceiling cavity, where its natural fibres trap air to moderate heat and dampen sound. Because hemp naturally manages moisture, the insulation helps keep the structure dry and reduces the conditions that allow mould or stale indoor air to develop. Once installed, it works quietly in the background to keep your home feeling settled year-round.
How it works
RespiraWool sits within the wall or ceiling cavity, where its natural fibres trap air to moderate heat and dampen sound. Because hemp naturally manages moisture, the insulation helps keep the structure dry and reduces the conditions that allow mould or stale indoor air to develop. Once installed, it works quietly in the background to keep your home feeling settled year-round.
How to finish
As an internal insulation layer, RespiraWool is concealed within the cavity and is encased by your interior lining and external cladding.
It shines pairs with vapour-open linings such as lime or clay renders, timber boards or hempcrete, allowing the full wall system to regulate moisture and temperature as designed.
How to finish
As an internal insulation layer, RespiraWool is concealed within the cavity and is encased by your interior lining and external cladding.
It shines pairs with vapour-open linings such as lime or clay renders, timber boards or hempcrete, allowing the full wall system to regulate moisture and temperature as designed.
How to finish
As an internal insulation layer, RespiraWool is concealed within the cavity and is encased by your interior lining and external cladding.
It shines pairs with vapour-open linings such as lime or clay renders, timber boards or hempcrete, allowing the full wall system to regulate moisture and temperature as designed.
High thermal performance
Hemp fibres trap air in a consistent, natural layer, helping the home hold steady temperatures across the seasons with far less energy demand.
Effective acoustic buffering
The soft, open fibre structure absorbs sound waves and reduces echo transfer between rooms for a calmer indoor feel.
Natural and non-toxic
Made with pure hemp fibre with no chemical additives. It supports cleaner indoor air and helps prevent the damp conditions that encourage mould or pests.
High thermal performance
Hemp fibres trap air in a consistent, natural layer, helping the home hold steady temperatures across the seasons with far less energy demand.
Effective acoustic buffering
The soft, open fibre structure absorbs sound waves and reduces echo transfer between rooms for a calmer indoor feel.
Natural and non-toxic
Made with pure hemp fibre with no chemical additives. It supports cleaner indoor air and helps prevent the damp conditions that encourage mould or pests.
High thermal performance
Hemp fibres trap air in a consistent, natural layer, helping the home hold steady temperatures across the seasons with far less energy demand.
Effective acoustic buffering
The soft, open fibre structure absorbs sound waves and reduces echo transfer between rooms for a calmer indoor feel.
Natural and non-toxic
Made with pure hemp fibre with no chemical additives. It supports cleaner indoor air and helps prevent the damp conditions that encourage mould or pests.
How it stacks up
See how RespiraWool compares to conventional insulation.
Title
Title
Title
RespiraWool
Respira Block
RespiraWool
RockWool
Rock Wool
RockWool
GlassWool
Glass Wool
GlassWool
Spray Foam
Spray Foam
Spray Foam
Vapour-open
Vapour-open
Vapour-open
Airtight
Airtight
Airtight
Comfort year-round
Comfort year-round
Comfort year-round
Sustainable
Sustainable
Sustainable
Toxin-free
Toxin-free
Toxin-free
Sags & Resists Moisture
Sags & Resists Moisture
Sags & Resists Moisture
Wall insulation
Technical details

R2.2 - 90mm
For perimeter wall applications
Excellent thermal performance for external walls, with superior acoustic properties and made from natural hemp fibres. Low water vapour diffusion resistance for breathable, healthy buildings.

R2.2 - 90mm
For perimeter wall applications
Slim and flexible. Ideal for small projects or where only a thin insulating layer is needed.

R2.2 - 90mm
For perimeter wall applications
Excellent thermal performance for external walls, with superior acoustic properties and made from natural hemp fibres. Low water vapour diffusion resistance for breathable, healthy buildings.

R3.4 - 140mm
For enhanced wall insulation
Higher thermal resistance for walls requiring greater insulation, delivering excellent sound dampening in a natural, non-toxic material with low vapour diffusion resistance.

R3.4 - 140mm
For enhanced wall insulation
Higher thermal resistance for walls requiring greater insulation, delivering excellent sound dampening in a natural, non-toxic material with low vapour diffusion resistance.

R3.4 - 140mm
For enhanced wall insulation
A versatile thickness for most home builds. Works well on its own or combined with an internal 80mm layer for added depth.
Ceiling insulation
Technical details

R4.9 - 200mm
For ceiling thermal comfort
Strong thermal barrier for ceilings with effective acoustic control, made from sustainable hemp fibres treated with natural fire retardants. Perfect for diffusely open constructions.

R4.9 - 200mm
For ceiling thermal comfort
Slim and flexible. Ideal for small projects or where only a thin insulating layer is needed.

R4.9 - 200mm
For ceiling thermal comfort
Strong thermal barrier for ceilings with effective acoustic control, made from sustainable hemp fibres treated with natural fire retardants. Perfect for diffusely open constructions.

R5.9 - 240mm
For maximum ceiling performance
Premium thermal and acoustic insulation for ceilings, offering the highest R-value in a natural, breathable, chemical-free material ideal for healthy buildings.

R5.9 - 240mm
For maximum ceiling performance
Premium thermal and acoustic insulation for ceilings, offering the highest R-value in a natural, breathable, chemical-free material ideal for healthy buildings.

R5.9 - 240mm
For maximum ceiling performance
A versatile thickness for most home builds. Works well on its own or combined with an internal 80mm layer for added depth.
Specification
Specification
Specification
R2.2 - 90mm
R2.2 - 90mm
R2.2 - 90mm
R3.4 - 140mm
R3.4 - 140mm
R3.4 - 140mm
R4.9 - 200mm
R4.9 - 200mm
R4.9 - 200mm
R5.9 - 240mm
R5.9 - 240mm
R5.9 - 240mm
Dimensions (L × W mm)
Dimensions (L × W mm)
Dimensions (L × W mm)
1100 × 430/580³
1100 × 430/580³
1100 × 430/580³
1100 × 430/580
1100 × 430/580
1100 × 430/580
1100 × 430/580³
1100 × 430/580³
1100 × 430/580³
1100 × 430/580
1100 × 430/580
1100 × 430/580
Application
Application
Application
Wall
Wall
Wall
Wall
Wall
Wall
Ceiling
Ceiling
Ceiling
Ceiling
Ceiling
Ceiling
Density (kg/m³)
Density (kg/m³)
Density (kg/m³)
30-40
30-40
30-40
30-40
30-40
30-40
30-40
30-40
30-40
30-40
30-40
30-40
Water Vapour Diffusion Resistance (μ)
Water Vapour Diffusion Resistance (μ)
Water Vapour Diffusion Resistance (μ)
≤2
≤2
≤2
≤2
≤2
≤2
≤2
≤2
≤2
≤2
≤2
≤2
Acoustic (NRC)
Acoustic (NRC)
Acoustic (NRC)
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
Need Technical Documents?
Need Technical Documents?
Need Technical Documents?
Your healhy home could start with a coversation.

From concept to finalised project, we can support you along the whole journey.
Your healhy home could start with a coversation.

From concept to finalised project, we can support you along the whole journey.
Your healhy home could start with a coversation.

From concept to finalised project, we can support you along the whole journey.


