First Row For Roof

Before you can begin setting asphalt shingles on your roof you must install a row of starter shingles.

First row for roof.

The height distance up the roof of the starter slate must be at least 3 inches greater than the vertical exposure on the first course of slate. This 1 2 tab has to be cut off where it hangs off the left edge of the gable roof. The exposure on the first course of slates may be reduced by dropping the chalk line for the top of the second course of slates in order to increase the headlap on the starter course. Lay the second row of shingles.

The bottom edge of the starter and first row of shingles was damaged from hurricane harvey going through are area and i wanted to repair to keep from having. And while this shortcut did protect the roof deck at shingle joints and cutouts it unfortunately left that first course of shingles unsealed and vulnerable to wind uplift. Set the first shingle of the second row back a half tab 6 inches 17 centimeters from the edge of first shingle on the first row and so that the bottom of its tabs just touches the tops of the cutout slots on the shingle below. Set out the first second and all the rest of slates on a pitched roof.

If these first shingles are not installed correctly there will be problems with the entire set of shingles.