Warmshell Internal Wall Insulation
Verified by manufacturer 3 days ago
EN 13501-1 (Efectis)
Certificate type
KIWA BDA
Certificate type
Internal wall insulation system for solid walls and hard to treat buildings using breathable wood fibre insulation.
Application
For insulating cold masonry walls from the inside.
Description
Warmshell Internal is the complete, comprehensive method for insulating cold masonry walls from the inside. Carefully designed and tested as a system, it uses the ability of wood fibre and breathable lime plasters to keep your house warm, healthy and dry. Because Lime Green use sustainably grown wood, Warmshell is a very low-carbon method of retrofit.
Warmshell Internal complies with the requirements in BS 5250 Code of Practice for Managing Moisture in Buildings and with government recommendations from BEIS on how to insulate solid walls.
Warmshell Internal is fitted without a cavity or void. Gaps used in dry lining systems, or dot and dab, are a high-risk method which can cause damp or rot and allow cold air to circulate, whereas wet plastering with naturally anti-septic lime helps wick moisture away and keeps the wall draft-free.
There are four main layers to Warmshell Internal:
- Duro Levelling Coat - breathable, wicking and draft-proofing layer.
- Warmshell Board Adhesive - to fully bond the insulation to the Duro.
- Warmshell Woodfibre - highly insulating and moisture buffering.
- Solo Onecoat Lime Plaster - to give the final decorative finish.
General information
Color | White |
Finish | Trowelled |
Material | Lime Wood |
Shape | Formless |
Width | 40 mm 60 mm 80 mm 100 mm |
Warranty description | 25 year |
Uniclass | Ss_25_45_72_44 Internal wall insulation systems Primary |
CAWS | M20/330 Proprietary lime:sand M20/240 One coat proprietary plaster P10/217 Insulation slabs fixed to backing wall M20/47 One coat proprietary plaster |
Specification data - Internal wall insulation systems
System performance | Reaction to fire to EN 13501-1, Class B-s1, d0. |
Preparation | Not required.Duro Levelling Coat.Dubbing out/parge coat for uneven walls / Optional finish coat. |
InsulationVapour open, capillary active and hygroscopic wood fibre insulation board. Rectangular with tongue and groove-profiled edges. Board Dimensions: 1430 x 560 mm. Specific Heat Capacity: 2100 J/kgK. | Warmshell Insulation Board 40 mm.Thermal conductivity: 0.044 W/mK. Density:195 kg/m3. Compressive Strength: 200 kPa at 10% deformation according to EN 826. Tensile strength perpendicular to plane of board: 25 kPa. Warmshell Insulation Board 60 mm.Thermal conductivity: 0.044 W/mK. Density:195 kg/m3. Compressive Strength: 200 kPa at 10% deformation according to EN 826. Tensile strength perpendicular to plane of board: 25 kPa. Warmshell Insulation Board 80 mm.Thermal conductivity: 0.040 W/mK. Density:130 kg/m3. Compressive Strength: 70 kPa at 10% deformation according to EN 826. Tensile strength perpendicular to plane of board: 7.5 kPa. Warmshell Insulation Board 100 mm.Thermal conductivity: 0.040 W/mK. Density: 130 kg/m3. Compressive Strength: 70 kPa at 10% deformation according to EN 826. Tensile strength perpendicular to plane of board: 7.5 kPa. |
Insulation fixing | Warmshell board Adhesive.To bond Warmshell wood fibre to the wall. Warmshell board Adhesive and Ejot H1 eco Fixing.Adhesive and optional hammer fixing with steel pin and low profile flexible washer. |
Linings | Warmshell Woodfibre board. |
System accessoriesConsult manufacturer and insert requirements. | - |
Plaster | Solo Plaster. To plaster over the Warmshell Woodfibre board. |
Finish coat | Not required. Solo Guard. Breathable stain repellent for Solo lime plaster. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Europe |
Country of product manufacture | United Kingdom |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 Guidance: The Warmshell Woodfibre stores about 230 kg /CO2 per m3 | - |
RecyclabilityProvided they have not been soiled or damaged, the Warmshell Woodfibre boards may be recycled, e.g. for making compost. Plaster component are suitable for aggregate recovery | - |
Recycled content | 0 % |
Third party certifications
EN 13501-1 (Efectis)
Warmshell Internal Fire Classification
KIWA BDA
Warmshell Internal BDA
Literature
Detail Drawings
Warmshell IWI Installation Guide
Warmshell Internal Warranty
Case studies
Sustainably Restoring Griffin Island