The lower edge of a roof should extend beyond the fascia board by about 3 4 inch so that runoff drains into the gutters.
Hip roof drip edge.
Without a drip edge water may end up beneath the shingles and may cause damage to various parts of the home.
Installing drip edge on your roof.
The reason why drip edge should be installed below the underlayment along the eaves of the roof is so that water does not get under the drip edge.
If this slight overhang is too short water will drip behind the gutters leading to rotted roof sheathing and fascia stained siding and even soil erosion and a flooded basement.
Learn more about drip edge at.
This is important to protect damage to your fascia soffits rafters.
When installing anything on a roof you need to follow the water rule the water rule means you consider where water will run when it s on the roof.
Tools supplies tin sn.
Gaf mastering the roof chapter 05 the drip edge is critical to provide a finished look and to add waterproofing.
The edges of a roof that receive the most moisture particularly those of irregular or steep sloped homes require the most protection and any shingles that extend beyond a certain point are going to eventually bend and fracture along the edges which means if the drip edge is missing or has been eliminated from an.
With without rain gutters.