Pitch For Earthship Roof

According to the conventional rule of thumb this would require roof glazing to be about 60 degrees off the horizon 40 20 60.

Pitch for earthship roof.

I also share a little about why we did not build an earthship as we had planned because of the climate here. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. How roof pitch determines suitable roofing systems. The graphic below helps flesh this out.

But here in wet southeastern ohio it is a major concern. The combination of two numbers are used to display or show the roof pitch. If you sketch that out on paper you ll see that a roof angle of 60 degrees requires a very tall north wall or an altered plan for the greenhouse. In the video above i explain the importance of roof pitch when it comes to snow.

Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. Flat and nearly flat roofs a pitch of 1 in 12 or 2 in 12 cannot be covered with shingles or shakes of any material since there is not enough angle to combat the danger of blow off. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot.

Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12. A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. For that reason flat roofs are limited to these types of covering materials. Since earthships were born out in the desert southwest i suspect the folks out there didn t give it much thought.