The Client approached Mr. Roof Repair because they have a leak coming in to their second story office. The leak occurred after a recent thaw.
Upon inspection, Mr. Roof Repairs Roofing Specialist (RS) Team determined that the leak was originating from some missing shingles on the roof. The shingles had likely blown off in heavy winds. It was noted that the shingles are in good condition and there did not appear to be any nailing issues, so it is likely that because of their position at the end of the gable, the wind was just able to catch them and pull them loose.
As there was no underlayment installed to help protect the roof deck, water was able to easily leak inside of the attic space. The RS Team replaced the missing shingles to help stop the leak.
During the assessment of the attic space, it was noted that although the upper attic has sufficient insulation and vapour barrier, it was suffering from inadequate air intake. This is because most of the soffit panels are non-venting, and there are not enough attic baffles installed. Baffles are used to to keep the insulation from blocking the vented soffit panels in order to maintain the flow of air through the attic space. There was also a large amount of mould growth found on the roof deck, caused by condensation build-up as a result of the inadequate roof ventilation.
It was also noted that the wall flashings were not sealed properly. This could allow wind driven rain to leak in behind the flashing, causing leaks within the home.
It was recommended that vented soffit panels, and attic baffles be installed to help properly circulate air through the attic space and reduce the condensation build-up. It was also recommended that the loose flashings be sealed. A quote was provided to this effect.
It was recommended that a mould remediation specialist be contacted to remove the current mould growth from the attic space prior to any work being done.