Slate Roof Installation Specifications

Custom slate hooks may be fabricated by the contractor for use with slates up to 1 2 in thickness.

Slate roof installation specifications.

For roof slopes less than 8 inches per foot 67 percent down to 4 inches per foot 33 percent install a minimum of two layers of no. Nails of the combing slate shall pass through the joints of the slates beneath. Wood cants for installing underneath the starter course of slate shingles shall be minimum 1 4 inch by 1 inch plaster lath or other solid glue free wood. A 14x24 slate roof will only require the nailing of 98 slates.

Slates should overlap by at least three inches on the sides called sidelap. If your roof is steep with a pitch of. A6x10 slate roof will require the nailing of 686 slates to cover one hundred square feet. 40 asphalt saturated and coated felt with standard size slate as long as the slate is laid with a 4 inch 100 mm minimum head lap.

26 asphalt saturated felt or one layer of no. All ridges shall be laid to form saddled ridges. Slate roofing specifications section 07310 slate shingles 1 01 installation assurance 1. Even more important is the overlap at the top of each slate called headlap.

Select either open or closed valleys. Obviously the larger slates will cover a roof relatively quickly but the smaller slates can sometimes be bought quite inexpensive ly and some people like the look of smaller slates. Slates shall be installed by skilled and experienced roofers who will fit and fasten each slate.