They form a long narrow piece of metal which is installed along the perimeter your roof deck.
Roof rake vs drip edge.
Does my roof need drip edge.
They both look very similar and are often not differentiated in name by some suppliers and simply called drip edge.
Utilized on low incline roofs l shape drip edges are situated on the roof deck and atop the fascia board.
One of the most overlooked pieces of a new roofing system is the drip edge at both the rake and the eaves.
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The drip edge should be installed at the eaves prior to the installation of the eave protective membrane.
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While drip edge is a common component in some areas of the country most atlanta roofers don t offer it because it s not part of most municipalities building code with dunwoody being an exception.
You install drip edges on the rakes after you install the underlayment.
The rake edge of a roof is the outer edge that extends from the eaves or the bottom edges of the roof to the top of the ridge.
The reason why drip edges are installed in this location is to prevent water from getting under the drip edge into the wooden base of the roof.
After your roof deck has been prepared and before you install underlayment you need to install drip edges at the eaves.
When placed on the eaves side of a roof the drip edge will prevent capillary action water damage caused by surface tension.
Drip edge goes along your eaves trough areas and rake edge goes along your gable ends.
Applied with metal and standing seam roofing an open hemmed drip edge will deter water from going upward as a result of capillary action and passing the drip edge metal.
Two rake edges form a gable or a triangular point on the roof.
How to install a drip edge.
Drip edge and rake edge are the first parts of the roof system to be installed.
The rake edge should be installed at the rakes above the underlay of the roof.
They form a long narrow piece of metal which is installed along the perimeter your roof deck.
Why you need a roof drip edge.
It s important to understand that drip edge installation is different for eaves and rakes.
In most cases if the shingles go past the drip edge about 3 4 of an inch the shingle edge will break the surface tension unless your roof has a shallow pitch then the water will reach the drip edge and if drip edge is tight to the facia board it will run down the fascia so as added insurance leave space between the fascia and drip edge.
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