Draw a blue chalk line at this line.
Gable shingle roof trim pieces identified.
When you cut along the chalk line you should be making the shingles even and leaving a 1 2 inch overhang where the shingles extend beyond the edge.
Gable rake where the long side of a panel meets the side of the roof section a gable rake trim is used to seal the panel edge.
Third to ensure adequate airflow the total area of ventilation openings required will depend on the type of roof.
Butyl tape sealants and zee flashing for hidden fastener are also available.
Handyman ian eltringham recommends leaving a 1 2 inch overlap between the edge of the roof and the shingle.
Except for special cases the ratio of ventilation openings to insulated ceiling surface should be at least 1 300.
A shingle roof covering will remain waterproof only under certain conditions.
Find roof shingles at lowe s today.
An external installation on the roof that uses the vent pipe system to prevent water seeping in and create damage.