The old flat roof is just used as a base a.
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.
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.
Overlaying a flat roof or capping a flat roof means that we cover the old flat roof materials with new materials.
Topseal has systems suitable for both these situations.
It s for this reason that many people choose to go with an overlay roof rather than a full tear off.
Ideal for flat roof repair and refurbishment projects watch our new rockwool flat roof overlay board video to find out more.
Since flat roofs have little to no pitch the water would work itself underneath the shingles or tiles eventually rotting the substrate and.
There are two options for improving the waterproofing on your current flat roof either strip off the failing current system or to overlay it.