Comment posted to Flat Roofing by Rooftec (Glass Fiber Flat Roof) by Renovation Dave

Of the 4 flat roofs we had replaced so far the top 3 haven’t leaked, but the lower roof had two leak points due to poor design.

Basically if there was excessive splashing on this roof water could splash under a rendering strip: you can see the strip in the last image above on the wall to the left. It was added so water draining down the wall is directed away from the seam between the roof and the wall (which RoofTec didn’t waterproof!!).

I’ve been on the roof several times to fix it, first with cement (filled the gap with cement), but because there’s a paint layer it didn’t hold well and continued to leak so had to remove it and try other things.

Secondly used window sealant (about 5 tubes of it) to completely fill the gap under the rendering strip making the roof/wall seam water tight and it looks like that fixed it.

This is an obvious design problem, water splashes on roofs and so in any roof similar to ours water will be getting in the roof/wall seam!

To add to this we had a missing end pipe on some guttering (very easy to fix) and RoofTec has added their fibre glass flat roofing in a way that means I can’t reattach the end pipe without removing the guttering and lowering it about 5 inches or cutting into the new roof!

So no I wouldn’t recommend RoofTec, in fact I didn’t call them back when the lower roof began to leak, preferred to fix it myself so the job was done well.

David

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