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Flashings
Flashings are made of steel and come pre-finished in colours to best match the shingles installed. These protect the vulnerable areas of the roof from water intrusion. When the roof is scoped the flashings will be carefully inspected for correct installation, and if upgrades are necessary you will be provided a price to correct any problems.
Drip Edge
Drip edge is a steel flashing that is installed on the eaves of the roof. It protects the eaves from rotting and also helps direct the water directly into the eavestrough. (Note that installation of drip edge will not necessarily solve eavestrough leaks.)
Valley Metal
Valley metal is a steel flashing that runs down the full length of the valleys on the roof to direct water down into the eavestrough and protect this vulnerable area of the roof. It is essential that this flashing is installed properly due to the large volume of water that runs this area. Even though closed valleys are acceptable (and may be used if there are large pitch differences between adjoining slopes) it is recommended to install valley metal because the large amounts of water that get channeled down the valley will shorten the life of the shingles in the valley that does not have valley metal installed.
Step/Wall and backpan Flashings
These flashings protect the areas where a roof slope meets a vertical surface such as a wall, chimney or skylight. These can be reused if they are in good condition. Wall flashings are used across the slope, step flashing is used up the slopes and a backpan is used where the slope runs into a vertical surface from behind it.
Chimney Flashings
Chimney flashings are installed around chimneys and consist of wall, step, backpan and often counter flashing. This is a very common source of leakage on a roof if it is installed incorrectly. It is essential that these flashings get replaced if there is any concern about their installation quality or condition. Even if there has been no leakage in the past there can be leakage once the roof is replaced due to the flashing being disturbed. Counter flashing is used to seal the top of the flashings when siding can not be installed over it.
skylights and skylight flashings
Skylight flashings are installed around skylights and consist of wall, step, backpan and counter flashing. Like chimney flashings these are a very common source of leakage. If there is yellow staining on your ceiling at the bottom of the skylight well it is likely that there is some leakage occurring. If there is any concern about the flashings they need to be replaced to guarantee there is no flashings. It is recommended that acrylic dome skylights get replaced at this point as well because often the seals are damaged if they are removed to replace the flashings and should not be replaced.
Flashing Upgrades
On certain homes, most notable two storey homes with a front attached garage, the old wall and step flashing is a galvanized steel. These flashings can look out of place when the new roof is installed. On these homes we offer an upgrade to install new pre-finished flashing overtop to match the rest of the roof.
plumbing flashing
Plumbing flashings are used to seal around plumbing exhaust stacks. If an old cast iron pipe is presently installed an ABS extender may be installed to allow for a proper seal.
b-vent flashings
B-vent flashings are used to seal around chimney pipes. If they are in rough condition they should be replaced. These are actually a common leak point due to caulking not being installed around the collar. We ensure that every b-vent is well sealed.