A: It sounds like you have no drip edge on your roof. Most gutters get tucked in behind the drip edge and eliminate this problem.
Assuming that you "have" a drip edge, I usually overhang about 1/2" to 5/8" past the drip edge with my starters and first course of shingles. It shows how to do it on the shingle bundle wrapper.
A: There are slight different type of drip edges http://hardware.hardwarestore.com/27-108-drip-edge.aspx.
The lower edge of the roof is the edge that first row of shingle is laying on. The drip edge should be put underneath of felt (memberance).
The rake edge (sloped edge) is two arm of the triangle. Those shingles have been nailed on the roof. The drip edge should be installed between felt and shingle.
Here is a installation instruction http://www.rollex.com/pdf/dripedge.pdf
Another quick way to fix the problem is to put vinyl gutter cover sold in Homedepot or Lowes underneath of felt. It is not necessary to nail the gutter cover unless you want to.
1 comment:
The lower edge of a roof should extend beyond the fascia board by about 3/4 inch so that runoff drains into the gutters. 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. Fix the problem by installing sheet-metal drip edge, also called drip cap, which is available at lumberyards and home centers. Slip the wide, flat flange of the material all the way under the first course of roof shingles, as illustrated. Make sure the outer edge extends over the gutter. If it doesn't, pull the drip edge out slightly from under the shingles. Secure the drip edge with roofing cement. Apply a continuous bead of cement along the top of the drip edge, then press down on the shingle. If necessary, secure the ends of the drip edge with short roofing nails; just be sure they're positioned high up under the shingles.
- Alain Bernard
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