Slate Roof Without Felt

It has just one layer so it goes.

Slate roof without felt.

Traditional 30 pound organic roofing felt. You will also want to make sure your rafters and sheathing are strong enough to hold up a heavy slate roof without sagging. I have viewed two properties over the last few days that have old roof with no felt until the tiles. Often if you have slate and they re in good condition there s no reason they couldn t be reused.

Both of them are inter war 3 bed semis. It is though difficult to repair so in the long run you are better off striping the roof and felting. You may be able to use the original tiles depending on their condition. Roll roofing is different.

Roofing felt may be necessary for use with your shingles to meet a class a fire rating when shingles are evaluated for their fire ratings it is done on a small test deck with the roofing felt underlayment in place without this underlayment the shingles alone may not meet the class a fire requirements. A typical roof has three layers a felt layer and two layers of overlapping shingles. Definitely a good move. In wales where we are located there are still many properties with original welsh slate roofs.

New roof redland 49 s breathable modern felt fabric stuff not draughty still dry no piles of snow on the bedroom ceiling insulation in winter no daylight gaps no wasps. Some older properties do not have felt and as long as they don t leak its ok. Assuming the roof timbers themselves are ok a re roof usually just entails re felting new battens and then your slate tile of choice. Old roof slates no felt draughty but dry daylight visible when looking downhill inside the roof annual wasp nests with ingress between slates.