no guesswork
take the guesswork out it
Roof insulation system
Insulating your roof with Warmshell Woodfibre and our range of complementary products is the ideal way to complement breathable wall insulation, inside and out.
Warm in Winter, cooler in summer
Warm in Winter, cooler in summer
Moisture controlling
Breathable and moisture buffering
Low carbon
Low carbon – locks-up 322kg of CO2
Lower your energy costs
Warmshell Roof Insulation
Warmshell Roof Insulation is the perfect partner for breathable wall insulation, offering sustainable, low-impact performance for inside and out.
Our system uses bio-based materials that store carbon throughout their lifetime. Made from natural plant fibres, these insulations regulate moisture and help prevent summer overheating – a superior choice to synthetic alternatives.
Designed for simplicity and versatility, our Warmshell Woodfibre boards work universally across walls and roofs, both inside and outside. No need to juggle multiple types of boards for your project.
To maintain breathability, finish your roof insulation with Solo One Coat Lime Plaster. This traditional plastering solution delivers a beautiful, breathable finish without the need for complicated mixing or specialist consultants.
By considering insulation zones and your home’s ventilation strategy, you can optimise comfort and avoid cold bridges, creating a healthier, more energy-efficient space.
Because we use sustainably grown wood, Warmshell is a very low carbon method of retrofit.
Warmshell Roof Insulation
Technical Guidance
It's vital when insulating your house to consider all the junctions and how the house will work.
Piecemeal insulation added in badly will not only fail to save you much energy, but it might cause damp and mould.
Warmshell roof design guide and installation details >
Read our information alongside our guide to insulating walls >
