Dave Plowman (News) wrote:
In article ,
Roly wrote:

The current position is that the lady isn't convinced by the advice not
to use foam.

classic isnt it.

She asks for specific reasons why it's not a good idea.

Let her read up on it. eg at periodproperty.co.uk's forum, they
discussed it in detail.

At
the moment I can understand her point that it could mostly be a gut
reaction against getting foam. The only valid reason so far was about
timber not being able to dry out. Any other reasons ?

yes.


Fine. If she's convinced she knows better than *all* the advice she's had
from here then tell her to go ahead. Doncha just love it?

Has she asked a decent roofing company what's required for a proper fix?
Or even - perish the thought - an architect, if it's an old property?

Spraying gunge inside the roof may well be a short term fix. But if she
intends living there for a while only puts off the time when the job has
to be done properly - and that then is likely to cost more. On top of the
price of the gunge which will then have to be removed.

And if she intends to sell will simply be seen as a bodge by the surveyor.

it also may be an unsafe repair, depending on whether the foam is
strong enough to hold the roof up with rotten wood. It sounds like
thats what will happen.

But more to the point, it isnt relevant to the repair anyhow. Repairing
the problem and foam coating are 2 separate things. Foam wont fix the
problems.

And btw ripped felt is a very minor thing, assuming the roof design is
basically ok. You dont need felt, it just reduces dust and dirt in the
loft, and acts as a backup in case of roof damage. Lots of roofs have
no felt.


NT