My Mums bungalow has a valley and it's been leaking for a while. I have been up and can't see any cracks in the lead and last winter re pointed 1 or 2 places under the concrete tiles but it is still leaking.
So I'm going to have another go, and check the lead again very carefully. I'm going to remove the tiles & all the old pointing, check the condition of the felt sarking - 20+ years old so probably gone - and if so run some new membrane under the old felt if necessary, re lay the tiles and then re point back up.
I've read it's best to prime the area for pointing with a mix of SBR & cement and paint it on the underside of the tile and the lead and then point while it's still tacky.
What mix would you recommend for the valley pointing so that it sets hard, is waterproof, and bonds to the tile and the lead.
Would 6/1/2 Grano Dust/Building Sand/Cement be OK and should I add SBR to it ?
Or do you use a ready mixed product these days ?
many thanks
So I'm going to have another go, and check the lead again very carefully. I'm going to remove the tiles & all the old pointing, check the condition of the felt sarking - 20+ years old so probably gone - and if so run some new membrane under the old felt if necessary, re lay the tiles and then re point back up.
I've read it's best to prime the area for pointing with a mix of SBR & cement and paint it on the underside of the tile and the lead and then point while it's still tacky.
What mix would you recommend for the valley pointing so that it sets hard, is waterproof, and bonds to the tile and the lead.
Would 6/1/2 Grano Dust/Building Sand/Cement be OK and should I add SBR to it ?
Or do you use a ready mixed product these days ?
many thanks
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