Basic Repairs

by Kevin Ernster, RRC

Accurate identification of roof deficiencies and proper repair of the deficiencies is an important element of a successful roof maintenance program. Once deficiencies have been identified, determining an appropriate level of repair for each deficiency and condition is sometimes tricky.

It's necessary to have a good understanding of basic repair techniques. The following are common roof repair items to keep in mind.

Partially blocked drains or missing strainers: Clean the drain strainer and rod out the drain, if needed. Install cast iron strainers where missing. Plastic strainers tend to blow away if they become loose.

Pitch pans low on filler: If water stands in a pitch pan or the filler is cracked and pulling away from the side of the pan, fill the gaps with a pourable sealer. Do not use plastic roof cement, as it will dry and crack in a short time.

Dirt and debris trapped in valleys or corners: Debris tends to trap water, promoting algae growth and accelerating the breakdown of both built-up and single-ply roofs. Remove all debris from the roof. Power washing the roof may be required for cases of accumulated dirt. This is particularly true if a coating is to be applied to the roof.