Flat Roof Overlay

Topseal has a range of fibreglass flat roofing systems including the topseal direct lay system that is specifically designed for the flat roofing.

Flat roof overlay. Ideal for flat roof repair and refurbishment projects watch our new rockwool flat roof overlay board video to find out more. There are two options for improving the waterproofing on your current flat roof either strip off the failing current system or to overlay it. Less expensive since you re simply adding another layer of shingles on top of the old roof your labor costs will be considerably. Since flat roofs have little to no pitch the water would work itself underneath the shingles or tiles eventually rotting the substrate and.

The old flat roof is just used as a base a. Systems designed for sloped roofs such as asphalt shingles and concrete or clay tiles are installed by overlapping one row on top of another these systems work cohesively with the pitch of the roof to shed rainwater and snow as it falls from the sky. A flat roof that had been over coated with a liquid based system which itself is breaking down a bonded overlay would not be suitable although with some preparatory works a mechanically fastened overlay system might be an option. The additional price is mostly related to the extra labor that goes into a tear off roof.