Slate Roof Without Felt

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.

Slate roof without felt.

Both of them are inter war 3 bed semis. You may be able to use the original tiles depending on their condition. How to install roll roofing on low slope roofs. Definitely a good move.

It has just one layer so it goes. Old roof slates no felt draughty but dry daylight visible when looking downhill inside the roof annual wasp nests with ingress between slates. Roll roofing is different. Roofing felt was introduced primarily to act as a secondary barrier against wind driven snow and rain but its use also causes a reduction in air movement within the roof space particularly if the roofing felt is impervious and this effect is often compounded by the introduction of insulation.

One with a simple. I have viewed two properties over the last few days that have old roof with no felt until the tiles. It is though difficult to repair so in the long run you are better off striping the roof and felting. Assuming the roof timbers themselves are ok a re roof usually just entails re felting new battens and then your slate tile of choice.

In wales where we are located there are still many properties with original welsh slate roofs. Traditional 30 pound organic roofing felt. A typical roof has three layers a felt layer and two layers of overlapping shingles. Often if you have slate and they re in good condition there s no reason they couldn t be reused.