Low Pitched Shingle Roof Installation

The main consideration when installing a low slope roof is leak prevention.

Low pitched shingle roof installation.

Traditional 3 tab shingles made with asphalt composite are the most popular type of shingle and are the most flexible in terms of adapting to many roof pitches. Install peel and stick roofing in a similar manner. The cabo one and two family dwelling code permits the installation of asphalt shingles on roofs with a slope as low as 2 12 if the shingles are double coverage self sealing versions. 1 cover the entire surface with a self adhesive flashing membrane such as grace ice water shield there are many equivalent products.

The roofing materials most often used for these pitches include asphalt composite shingles. The acceptable underlayment installation options for low slopes are described in the canadian standards association asphalt shingle application standard csa a123 51 as follows. Most manufacturer and industry recommendations require or at the very least recommend special underlayment or other considerations on roofs between 2 12 and 4 12. Drip edge or drip cap is either plastic or sheet metal.

Shingles that are not self sealing must be hand sealed with asphalt roofing cement. It not only protects the roof but it also protects the fascia. As well a slope of 4 12 is most commonly considered the lowest slope for standard shingle installations. What are gaf asphalt shingles.

That way water flows from the shingles onto the flange and continuing to flow down slope it flows back on the shingles. A corresponding editor paul fisette replies. Gaf asphalt shingles combined with the proper underlayment make ideal low slope roof shingles that do an excellent job of preventing water build up and leaking. These shingles are appropriate for pitches as low as 4 12 pitch all the way up to a 12 12 pitch.

At nelson contracting we proudly offer and install gaf asphalt shingles for both high and low pitch roofs. But other than that a higher roof slope is much better for the shingles. However low slope installation means we take everything from job site safety and panel seaming to water and ice shield into consideration. For a low slope residential roof there are two main options.

Cover the entire low sloped roof area with a self adhered modified bituminous membrane that will act as an ice and water.