Calculation of the Composition of a Construction
Layer
Aerial Cavity
Description
Lambda
Thick (mm)
R
1
2
3
4
5
Choose an exception (if necessary)
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Cavity wall against open air
Cavity wall against moderately aired open air
Cavity wall filled against open air
Cavity wall against not frostfree space
Cavity wall against full ground
Full wall against open air
Full wall against moderately aired open air
Full wall filled against open air
Full wall against not frostfree space
Full wall against full ground
Wall with wallfacing against open air
Wall with wallfacing against moderately aired open air
Wall with wallfacing filled against open air
Wall with wallfacing against not frostfree space
Wall with wallfacing against full ground
Pitched roofs
Flat roofs
Floor against open air
Floor against not frostfree space
Floor against frostfree space
Floor against other room
Frost against full ground
Glass
The results obtained from this calculation are merely indicative.
Recticel is not responsible for the presented values