Fixing the roof pt2
They said it wouldn't rain. It rained.
Published 14th November 2017 by Henry
Having cleaned the roof and patched some holes last week, this morning I set out to finish preparing the roof for applying the roof sealant. There was still quite a bit of dirt on there so I went over it with the brush again and then sanded it all off. Finally I washed and dried it ready for the sealant.
Sanding the roof
Silicone sealant removal tool was essential
Sanding the fibreglass patch smooth
Just before sealant application
The sealant I’ve used is called Bostik Flexacryl which is thick, goopy stuff. It’s like a cross between Hammerite and GRP, as it’s a paint full of glass fibres. The fibres do a really good job of filling any gaps up to 10mm wide.
Flexacryl covering the fibreglass patch nicely
All going nicely...
...until it started to rain
You can see the fibres if you look closely
At this point I decided to pack up
grubby side shot
Once the rain had come and gone, I managed to get out for the last couple of hours of daylight and finish the job. The 5kg tin of Flexacryl more than covered it, with about a quarter of a tin remaining. It’s amazing stuff, but it really didn’t like water much, so I had to make sure the surface was dry as a bone before even thinking of applying it.