Attic Roof Insulation

[The Natural Philosopher]

Yup.

Any water that gets under the slates into the beams will dry very slowly.

The whole key to damp control, is either to keep it ALL out, or let air circulate to dry out any that gets in.

this product does neither. Nor will ity be easy to replace any damaged roof slates etc.

Essentially 30 years on, the whole roof will start to sag and slip, and will need total replacement, like as not.

Thats may not be an issue today, but 20 years down the line, some surveyor is going to knock off 30 grand (or whatever a new roof costs) off the asking price,..

[Michael Shergold]

Their website has a Q&A section that states Q. Does Renotherm trap moisture in the roof timbers? A. No, Renotherm does not absorb water but it does allow water vapour to pass through the foam, at about the same rate as wood itself.

Q. Can alterations be made in the future? A. Yes, the foam can be cut out and the tiles removed. Small areas can be re-foamed with a Foamseal pack.

Michael