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Is it possible to convert a loft if there is insulation sprey between the rafters? We are looking at a house to buy, but spotted the foam when looking at the house.
Im not keen on the idea of the foam, and read differing opinions on tge web about it, what does the oracle that is single track, say?
No one have any clue?
Depending on the loft conversion you we'll have most of not all the tiles / slates whatever ft anyway. Added expense of replacing the tiles though as removing it will be difficult
A lot depends on the foam, there are different types available. If it is the bog standard expanding foam type I’d be concerned anyway as it isn’t breathable and tends to cause issues with rot around roof timbers.
Recently some companies have gained certification for more breathable foams that allegedly don’t cause issues when used full fill between rafters. If it’s one of these breed of foams you should be ok, you will most likely need to add an additional board insulation below the foam prior to plasterboard but that simple enough. Ask for the building control cert for the loft insulation and beware if none available.
Cheers, Daz, good advice...
Sometimes foam is applied to so stop tiles/slates slipping on a roof past its best.
I would factor in a re-roof
I tell all my clients at the beginning of a project "you can do anything you want, the only restrictions are time and money"
Yes you could do a loft conversion on a house with spray foamed rafters, but it would could a fair amount more, probably easier and quicker to just to do a complete re roof, the back of the house, if your having a dormer will be completely replaced anyway, so your only actually renewing the front pitch.
I don't know how big your house is, but an average 3 bed semi would likely be £5-8k more to re roof, on top of the loft roofing cost