Utilize 4 nails per shingle for proper wind rating.
Roof starter course vs drip edge.
Slip the wide flat flange of the material all the way under the first course of roof shingles as illustrated.
It should overhang the drip edge about 1 4 inch.
Drip edges are metal sheets usually shaped like an l installed at the edge of the roof.
Securing the first shingle.
The best practice is to always install the drip edge so that it is inside the gutter.
Utilized on low incline roofs l shape drip edges are situated on the roof deck and atop the fascia board.
Lay the first shingle on the roof with the adhesive section at the bottom of the roof.
Wha drip edge is a metal flashing that is installed at the edges of the roof to help control the flow of water away from the fascia and to protect the underlying roofing components.
How to install a drip edge.
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.
Because this is the starter course the second course will be.
Make sure the outer edge extends over the gutter.
Why drip edge is a necessity.
Drip edge overhangs the sides of the roof and has a small metal flange that is bent away from the fascia board.
Starter shingles are the initial shingle products installed on the roof just before the first course of the finish shingles which will comprise the visible parts of the roof.
Install the starter course normally a 3 tab shingle installed upside down or a solid asphalt strip so that its low edge is parallel to the drip edge and extends no more than 1 4 past the drip edge itself.
Secure the drip edge with roofing cement.
Using four roofing nails or up to six in high wind areas secure the starter shingle to the surface of the roof.
Since the starter shingles will be covered by the roof shingles it doesn t matter what color they are except in special situations see below.
If it doesn t pull the drip edge out slightly from under the shingles.
Technical information about gaf pro start shingles.
Generally they want it installed so that the drip edge must go over the underlayment and then be cemented to the shingle s starter course and or tar paper.
The edge of the starter strip should hang over the eave and rake edge 3 4 in order to create a drip edge.
Without a drip edge water may end up beneath the shingles and may cause damage to various parts of the home.