External Wall Insulation

EPS is used as part of a render system to provide an efficient and cost effective solution.

Advantages of External Wall Insulation

Lambdatherm® external wall boards are available in various bespoke finishes from standard adhesive to rail system and radius boards.

The versatility allows it to be used with a variety of finishes including plastic weather boarding, cladding and reinforced render systems.

Lambdatherm® when used on the external face of a wall maximises the material thermal capacity of the wall.

Advantages:

  • Faster, more efficient single leaf construction can be used creating more internal wall space with better enhanced performance.
  • Lightweight material suitable for tall constructions.
  • A+ green guide rating
  • Its closed-cell structure inhibits water absorption and it is unaffected by the normal range of climatic conditions.
  • Unique thermal properties, EPS is 98% air.

Main Area of Heatloss On An Uninsulated House

Types of External Wall Insulation

Adhesive EWI System

Adhesive

Standard sizes range from:
1200 x 600mm & 1000 x 500mm

In thicknesses of
80,90,100,110,120,140,160mm

Non standard sizes are available up to 500mm

EWI Rail System

Rail System

Standard sizes range from:
500 x 500mm

In thicknesses of:
80,90,100,110,120,140,160mm

Non standard sizes are available up to 300mm

Technical Data

Strength
Lambdatherm®
  Compressive Strength kPa Min
10% Compressive Strength
Cross Breaking Strength kPa Min Safe working load kPa
1% Nominal Compression
Lambdatherm® 90E 100kPa 150kPa 45kPa
Lambdatherm® 70E 70kPa 115kPa 21kPa
Heat
Lambdatherm®
  Thermal Conductivity
[k] value 10°C Mean
Lambdatherm® 90E 0.030W/mk
Lambdatherm® 70E 0.032W/mk
Water (tabulated values)
Lambdatherm®
  Vapour diffusion resistance
factor µ1
Vapour permeability
δ mg [pa.h.m]
Lambdatherm® 90E 30 - 70 0.009 to 0.020
Lambdatherm® 70E 20 - 40 0.015 to 0.030

Downloads

S and B i-brochure inc all Data Sheets

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External Wall Insulation Adhesive Fix Datasheet

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External Wall Mechanical Fix Datasheet

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Lambdatherm® Datasheet

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S and B EPS External Wall Product Brochure PDF

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S and B EPS Full Product Brochure PDF

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