Divide the results by the number of 12 inch segments in your level.
Ideal roof pitch for snow.
Common roof slopes include standard designs based on residential or commercial applications.
The primary reason roof pitch exists in the first place is to redirect water.
Traditional roofing materials such as traditional clay tiles and timber shakes shingles need a relatively steep pitch in excess of 40 degrees to be waterproof.
Shallow roofs don t really like moisture.
The flip side to this is that it also becomes more expensive to build both in.
Basically the steeper the pitch the better it can shed snow and rain.
The roof pitch would be described as a 6 12 pitch.
In this case you ll probably want a traditional 4 12 or so pitched roof.
Begin by measuring 12 inches on your level and marking it with a pencil.
You can safely measure the roof pitch from inside your attic with a level that is either 18 or 24 inches a tape measure and a pencil.
For example if you used a 24 inch level and your measurement was 12 inches the pitch in your roof is 6 in 12.
It is an essential element to ensure water drains properly off of your roof.
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.
One can use shingles and tiles for steep roofs.
According to the conventional rule of thumb this would require roof glazing to be about 60 degrees off the horizon 40 20 60.
These factors include the pitch of the roof the type of slate being used the size of the lap the size of the slate as well as the site s exposure rating.
The graphic below helps flesh this out.
The pitch of your roof also helps determine the type of materials that can be used on your roofing system.
With regards to the pitch the building standard code bs 5534 recommends a minimum pitch of 200 for slate roofs.
A flat or low pitch roof might be just what you need.
Live in the desert.
Some conventional slopes are preferred for residential constructions with pitch size of 4 12 or 9 12 whereas for commercial applications low slope type roofs are a good option.
If you are adding an addition to your home or installing skylights knowing the existing pitch is important.
The final point influencing the roof slope is the preferred choice of roofing material.
Better raise that roof pitch a bit more to account for the buckets of snow you get every winter.
