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Warmshell Internal Wall Insulation

Verified by manufacturer 2 months ago

Lime Green Products Ltd Third party certifications:
  • KIWA BDA

    KIWA BDA

    Certificate type

  • EN 13501-1 (Efectis)

    EN 13501-1 (Efectis)

    Certificate type

  • EPD

    EPD

    Certificate type

Internal wall insulation system for solid walls and hard to treat buildings using breathable wood fibre insulation.

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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 systemsPrimary

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.

Guidance for specification option:

Dubbing out/parge coat for uneven walls / Optional finish coat.

Insulation

Warmshell Insulation Board 40 mm.

Guidance for specification option:

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.

Guidance for specification option:

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.

Guidance for specification option:

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.

Guidance for specification option:

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.

Manufacturer guidance

Vapour 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.

Insulation fixing

Warmshell board Adhesive.

Guidance for specification option:

To bond Warmshell wood fibre to the wall.

Warmshell board Adhesive and Ejot H1 eco Fixing.

Guidance for specification option:

Adhesive and optional hammer fixing with steel pin and low profile flexible washer.

Linings

Warmshell Woodfibre board.

System accessories

-

Manufacturer guidance

Consult manufacturer and insert requirements.

Plaster

Solo Plaster.

Guidance for specification option:

To plaster over the Warmshell Woodfibre board.

Finish coat

Not required.

Solo Guard.

Guidance for specification option:

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

Material

Lime

Wood

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

-4.4 kg CO₂ eq/m²

Manufacturer guidance

The Warmshell Woodfibre stores about 230 kg /CO2 per m3

Recyclability

-

Manufacturer guidance

Provided 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

As defined in clause 7.8 of BS EN ISO 14021

0 %

Third party certifications

Third party certifications

KIWA BDA

KIWA BDA

Warmshell Internal BDA

EN 13501-1 (Efectis)

Warmshell Internal Fire Classification

EPD

Solo with Warmshell Scenario

Literature

Detail Drawings

Detail Drawings

Warmshell IWI Installation Guide

Warmshell IWI Installation Guide

Warmshell Internal Warranty

Warmshell Internal Warranty

Case studies

Sustainably Restoring Griffin Island

Sustainably Restoring Griffin Island