Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials.
Roof insulation 100mm.
This multi purpose pir insulation board is one of our biggest selling products due to is diversity in application and it also achieves an a rating when compared to the bre green guide.
The pitch roof solution with the insulation layer continous avoiding thermal bridges.
The metal batten fix on the insulation panel thanks to its shape and besides this allows the roof tile installation.
Rockwool multifix is a mineral fiberglass faced stone wool product that can be installed under many single ply membranes.
100mm xtratherm thin r is a foil faced polyisocyanurate pir insulation board formed by a blowing process which generates rigid foam composed of fine cells filled with pentane blowing agent trapped within the foam.
100mm isotherm price twin packs.
The metal batten fix on the insulation panel thanks to its shape and besides this allows the roof tile installation.
Ready to get a nzeb.
Single ply roof systems can provide an easy to install seamless roof assembly.
From the celotex ga4000 range ga4100 100mm is suitable for a variety of applications including roof wall and floor insulation.
Single ply roof insulation.
Ready to get a nzeb.
For a very good introductory overview article on r value see r values over at the website of.
As roof insulation installers and distributors we.
Roof insulation has been the insulation industry since 1990.
With a wealth of experience in the industrial sector as well as the domestic insulation markets.
The pitch roof solution with the insulation layer continous avoiding thermal bridges.
Pentane has very good insulating properties and gives thin r superb insulating capability.
See the department of energy s doe ranges for recommended levels of insulation below.
You should of course see the manufacturer provided technical data sheet for the r value of specific products.
R value of various materials.