Granular coated tiles are only suitable for pitches above 17 5.
Shallow roof pitch solutions.
For the smaller residential low slope roofing applications such as garage and porch transitions certainteed offers an excellent solution in our flintlastic sa self adhering sbs modified bitumen roofing system.
A 2 12 roof slope falls on the shallow end which means you ll need to choose your roofing material carefully.
Q a rafter ties and shallow pitch roofs.
Roof pitch defined and explained.
Pitch is the term used to describe the angle slope or slant of your roof.
The following roof tiles can be used on roofs with a pitch of no less than 15.
Marley mendip this tile can be laid to a minimum of 15 provided that the headlap is 100mm and you choose a smooth finish tile.
The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.
The best roofs for a 2 12 pitch.
If your home has a shallow roof pitch you ll find that your options are fewer.
To resist thrust the irc calls for a structural ridge required for any roof with a pitch less than 3 12 or for each pair of rafters to be securely connected to each other by a continuous ceiling joist r802 3 2006 irc.
Roof pitch designations are comprised of two numbers indicating a ratio.
Rafter ties and shallow pitch roofs framing.
However from the wind uplift mitigation perspective a 7 12 roof slope can be considered as a two story building due to the higher overall steepness and profile of the roof.