Dryseal is chosen again in preference to zinc.
This newly built project in Boyle Co Roscommon was originally intended to be finished with metal sheet but this was subsequently changed to Dryseal in 2018 after discussions with the architect.
The original design had been for a “standing seam” metal clad roof, but it was decided that the pitch was too low for a metal finish and with so many joints on such an exposed site it was deemed to be potentially prone to leaks, so the Dryseal GRP waterproofing membrane system was chosen.
Initially installer P Q Fibreglassing Ltd had decided to fit 18mm OSB3 on top of the 200mm insulation so they could then easily fix the standing “zinc” seams down. As this was potentially going to add a lot of cost, P Q Fibreglassing’s Phil Boardman said “We decided it was best to remove the OSB3 and then use Dryseal DP 40 stress plates with 240mm screws under all the simulated zinc seam upstands, choosing pop rivets to fix the zinc seams down to the flat sheet, hiding almost all of the fixing points and resulting in a neat, flat finish”.
Top—coated in a bespoke dark grey, the project was completed and handed over in 2019 to a very happy customer.