2 12 Pitch Metal Roof Install

Roof pitch defined and explained.

2 12 pitch metal roof install.

Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. The piece that allows us to join the two different slopes is the pitch transition trim. Florida building code allows a minimum pitch of 2 12 for grand rib 3 panels as long as lap screws and sealant are applied to the laps to prevent water from siphoning over the ribs see fig. Pitch is the term used to describe the angle slope or slant of your roof.

After that the miimum pitch for metal panels depending on the methods used to join the panels. Their fasteners are either concealed or screwed. Slope is calculated as rise over run. Or the colon can replace the slash as in 2 12 or 7 12.

When learning how to install a metal roof understanding safety is the. For low slope metal roofs under 12 that are nearly flat modified bitumen roofing thermoset and. The piece that s going to allow us to join the panels on the lower slope and the panels on the higher slope is the pitch transition flashing or the pitch change trim. Low slope metal roofs require less material which reduces the overall load on the building s structure.

Panels joined with an applied lap sealant can go as low as 12. Roof pitch this style of metal roofing panels requires a certain degree of pitch to ensure proper water drainage. Measure the vertical distance rise from the 12 inch mark on the level run to the underside of the same rafter. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.

Roof pitch designations are comprised of two numbers indicating a ratio. For example if the vertical height was 6 inches your slope would be 6 12 or 6 12 or 0 5 expressed as a decimal. 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. The minimum pitch for metal roof shingles and lapped non soldered panels is 3 12.

The traditional metal roof types such as 5v crimp shown above and corrugated are rated by the manufacturers for use down to a 3 12 pitch three inches of vertical rise for every foot of horizontal run. Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them.