DIY Doctor UK DIY Forums

Hi

I live in a fairly old house in an exposed area. In the wind some slates have started to rattle. I can see that the old plaster material used to bond the slates on the inside of the roof has started to crumble and fall off.

I was wondering if I could rebond the slates using normal plaster bonding ? Getting the rest of the old stuff off should be easy as its very weak. There is no sign of any water ingress anywhere. Would this work or is there a better type of plaster I should use ?

Any comments would be appreciated.

Vito,
You could have foam sprayed on the underside of the tiles to stabilise them.
end

Thks Stoneyboy

Have thought about spay foam and have had quotes. Its a very expensive way of solving the problem. The plaster up there lasted 70 years so why not put some more up. Simple and cheap. But what plaster ?

Vito

Small amounts of aerosol foam will be OK in blobs, but it can expand enough to lift the slate and cause wind damage or damp. I would use PINKGRIP or Gripfill , similar adhesive. Wipe the area to be stuck with dry cloth to remove dust and most dirt and use 15-20 mm blobs. (We are talking inside???). There is a new coating for the exterior of slate roofs, that allows movement, breathability and waterproofs and sticks, em down. I will try and fid the article I read if interested.

Find trusted, insured and vetted tradesman local to your area. Visit the DIY Doctor Find a Tradesman page: https://www.diydoctor.org.uk/find_tradesmen/