Does anyone know of a liquid that can be poured onto a flat room to somehow seal what must be a pinhole leak ?

We had a bad leak from a flat roof on an extension and had it tanked with fibreglass and resin (like a boat). It was impossible for water to get through that but it didn't work. Later we found the rain was soaking through the brickwork of the low perimiter wall surrounding the rood and into the celing of the room below. Maybe a membrane barrier had torn or hadn't been fitted. Sealing the wall with bitumen paint solved the problem. Not that I did any of this but over the years I watched it puzzle a lot of previous attempts which had all failed to prevent the leak.

Liquid solution to weeping flat roof ?

Feb 22, 2018 21 Replies

Rate this thread:

Andrew 8 years ago

It's supposed to have 'scrim' mixed into the basic product.

I remember when I applied it,that there was 'furry' stuff sticking to the brush as I applied it.

Vote

Dave Plowman (News) 8 years ago

It does have fibres in it. But given Acropol recommend using their scrim in addition for some things, I'd guess it is worthwhile.

Perhaps if you'd read the instructions yours would have worked.

Vote

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required