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Up Donegal · 23-01-2021, 21:00

I use an old slate-roofed house as a store/workshop/mancave and there is a leak somewhere, possibly in the felt that’s under the slates. Is it possible to put torch-on felt or mineral felt over slates, instead of removing slates?
TIA

the_pen_turner · 23-01-2021, 23:07

i assume they are natural slates
yes but is a terrible way to fix it.
once it fails you will have a nightmare to make it right.
strip the roof, re lat and felt then re slate the roof with the old slates

can you not find the leak outside and fix that. the felt isnt your issue or atleast not your main issue. the felt is a secondry layer. your leak is getting past the slates first

23-01-2021, 21:00	#1
Up Donegal Registered User Join Date: Aug 2015 Posts: 818 Adverts \| Friends	Leaking slate roof I use an old slate-roofed house as a store/workshop/mancave and there is a leak somewhere, possibly in the felt that’s under the slates. Is it possible to put torch-on felt or mineral felt over slates, instead of removing slates? TIA

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23-01-2021, 23:07	#2
the_pen_turner Registered User Join Date: Nov 2015 Posts: 6,373 Adverts \| Friends	i assume they are natural slates yes but is a terrible way to fix it. once it fails you will have a nightmare to make it right. strip the roof, re lat and felt then re slate the roof with the old slates can you not find the leak outside and fix that. the felt isnt your issue or atleast not your main issue. the felt is a secondry layer. your leak is getting past the slates first