How To Resolve a Flat Roof Leak
Damaged or perished membrane.
A Damaged membrane such as GRP or Felt could be allowing water to penetrate the weather proof membrane and onto the boarding structure its self.
Over time the boarding will rot and fail, allowing water into the building below.
If the roof has passed its servicable life, which is commonly 10 years, we recommend installing a new roof. We install EPDM membranes which is a rubber roofing system that offers a 20 year product guarantee.
Sealant such as silicone is commonly used around windows such as skylights and Velux windows. If this sealant fails over time, it will allow water into the building below.
GRP Roof Leaks
GRP roof leaks are increasing common in extreme weather conditions.
GRP 'Glass Reinforced Plastic' a material made from a polyester resin, which is reinforced by chopped strand mat glass fibres.
GRP fails for many reasons including: building movement, expansion and poor installation.
Felt Roof Leaks
Felt roofs are very common are provide good waterproofing over their servicable life. Problem soccur with felt roof when they reach the end of their servicable life (on average 10 years old or more).
Liquid Coated Roof Leaks
Non reinforced liquid coated roofing are commonly used as a short term solution to prevent leaks on existing roofs.
Problems occur with liquid coating thruogh buiding movement anad expansion which over time can cause delamination of the liquid to the roof.
Brickwork / Flashing
Here we have an example of a roof leak which was thought to be a slating issue, however on inspection turned out to be missing pointing, which was allowing water into the building.This only became apparent years after the flashing was installed.. The correct wind and rain conditions caused ingress through the brickwork.
In this example, the flashing was poorly installed and required repointing and correct detailing around the flashing.