We recently noticed that our flat roof requires recoating as it started causing a bit of problem with weather tightness after heavy rainfalls.
Received two solutions from our building consultant and roofing company he works with:
- Fit new timber to give the new fall and overlay with plywood and then overlay with 1.2mm butynol
- Clean down the existing roof and then recoat it with traffigard which is reinforced with fiber glass mat.
The consultant believes that butynol is expected to have a longer life with minimum maintenance requirements whereas traffigard membrane requires recoating every five year(it could last 10 years if work is done properly).
Would be great to get some feedback as to which way round we would go, and why.
Thanks in advance!