Repairing concrete fibre roof

[kernowstu]

At that age there could well be. It was in the 60's that it was phased out, and yes- I would be very careful about walking on that age of sheet without crawling boards!!

 

asbestos was still being used up till appox 1999:thumbdown:

[VEG]

If the roof is that old it will certainly contain asbestos. What about painting it with thomsons waterproofer?

[Stereo]

Yeah. I'm looking at those sort of products now. I'm looking at replacing at least a quarter of the worst panels with plastic lights as it needs more anyway. Doing this might give me easier access to the roof from a scaffold tower inside once the old panels are off. I can get up through each gap with a pressure washer and get all the moss off and treat as required.

[agg221]

Wickes do 25l of liquid DPM for £39.99. It's designed to go on to masonry, so should work well with cement type sheets. It's black, bitumen-based but cures out very quickly. I've put it on damp surfaces with no problems. Not sure exactly how UV stable it is, but it should be reasonable. Could give you a good few years of life and 25l goes miles.

 

Alec

[Rich Rule]

Id clean the crap of it and then slap on Bitumen.

[Stereo]

THanks, I'll check that out. Reckon I've got about 70m2 to do.

[Wex]

If the roof is that old it will certainly contain asbestos. What about painting it with thomsons waterproofer?

 

What that man said but spray it on .

[Stereo]

What with do you reckon? I've got a pro spray gun which I could hook up to my compressor. Or a garden sprayer? Is it thin enough to spray with one of them?

[VEG]

Will work with a garden sprayer.

[Stereo]

OK, thanks.