How Are 10 12 Pitch Roofs Shingled With Slate

As per the nrca roofing and waterproofing manual fifth edition they recommend that roof deck slopes intended for the application of steep slope materials at 4 12 18 degrees or greater page 405.

How are 10 12 pitch roofs shingled with slate.

Which means for every 12 inches the roof rises 2 inches. Use our roof pitch calculator to find the pitch of your roof. Wood and slate shingles are used in many of the same types of roofs as asphalt composite shingles but may not be appropriate for roofs near the lower end since they are more susceptible to leaking. Roofing material is estimated by the square which is equal to 100 square feet.

You can click here to read an article i wrote about how to find the slope of your own roof. Slate and slate type shingles require a minimum roof pitch of 4 12 or greater. Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. Wood shingles require a minimum roof pitch of 3 12 or greater.

Wood shakes require a minimum roof pitch of 3 12 or greater. Generally a slate roof is not installed on a pitch less than 4 12. 100 1 054 105 4ft 2. Built up roofs require a minimum roof pitch of 1 4 12 or greater.

There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these. Roofs that are anywhere between a 3 pitch and straight up and down 45 degree wall can be covered with architectural shingles. Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive. Next multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall roof area.

The roofs pitch will determine what types of materials you can use. The average roof is 3 000 square feet or around 30 squares. 5 12 to 12 12 pitch. 18 43 spray polyurethane foam.

The slope of a roof is often referred to as the roof s pitch. The pitch of the roof is the rise over a 12 inch run. A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely makes the cut off for one of the most popular roofing material options. Unlike tiled roof systems like stone slate clay tiles concrete tiles etc.

Wood and slate shingles do not lock together as tightly as other types of shingles. Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. For example a 4 12 pitch roof that is 100 square feet. Rubber shingles or rubber slate is walkable.

14 04 thatch see note below 12 in 12. Roof pitch area multipliers. Roof length measured in feet roof width measured in feet roof pitch. Like most shingles rubber shingles need at least a 2 12 pitch.

18 43 synthetic composite plastic shingles slates tiles with special underlayment requirements 3 in 12. With that as background you are now ready to estimate how many shingles you will purchase for your roof project. In 12 0 25 in 12 1 19 synthetic composite plastic shingles slates tiles.