There are significant problems with these. They force water to the roof timbers and cause interstitial condensation at these points - i.e. they will rot your roof timbers.There are foams available with IAB Certification, that are airtight or breathable. These foams claim to hold loose slate in place & claim to be ideal for your type of roof.
There are foams available with IAB Certification, that are airtight or breathable. These foams claim to hold loose slate in place & claim to be ideal for your type of roof.
find me the iab certification thats states this ?Some companies say they spray directly on to slates.
find me the iab certification thats states this ?
can you elaborate ?And my jury is still out on the other method!
can you elaborate ?
noI'm just a bit weary about the whole process. I can see how it would work well on a new build, but my 100 year old roof was not designed for this kind (or any kind) of insulation. Is it good to subject these old roofs (and old houses) to near air-tight treatment?
no there not, and there not suitable for what you requireAre these materials around long enough for us to know the long-term effects?
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