Roof Pitch For Snow Shedding

The safest way to determine the pitch of an existing roof is to measure from inside your attic using a level tape measure and pencil.

Roof pitch for snow shedding.

Whichever roof pitch you choose make sure that you select a roof covering that is designed to be waterproof at the angle that you eventually select. Your shed roof pitch may also be influenced by your project specific requirements to let light into the building through the roof or create storage space in the roof void. Roof pitch is the degree of building s roof slope. The higher the roof pitch the more often the snow slides off.

Best roof pitch for shedding snow. On january 19 2020 by jaka santuy. Snow can certainly slide off of a 4 12 roof. It determines how many inches the roof should rise for every 12 inches expanding on the horizontal side.

However the larger factor is that when the sun comes out radiant heat passes through the snow is reflected outward melts the snow from underneath and causes it to slide. This has more to do with weather conditions than pitch. Constructing a new shed roof at the desired pitch is as easy as knowing how to use a speed square. Slopes greater than 6 12 will tend to shed snow regardless of the texture of the material on them so roof slopes should be configured to avoid shedding anywhere people might be walking or exiting.

If you are building a new roof however consider the climate to determine the correct pitch and proper materials. Therefore if your roof rises 4 inches over the course of 12 inches of horizontal run then your roof pitch is 4 12. With expansion and contraction of the metal it is difficult to attach snow retention devices into the roof decking without causing a roof leak or slotting of the metal panel from the snow bracket fastener. Amongst many decisions one has to make when designing a metal building determining metal roof minimum slope is one of them.

Installing low slope metal roofing snow shedding and photovoltaics alpine design basics 360niseko metal roof design for cold climates shed roof pitch zacs garden. It makes sense when designing a metal roof to shed snow not to keep it on. Minimum roof pitch for metal building. Remember that pitch is calculated as the height or rise of a roof pitch over 12 inches of horizontal run.

How to choose the right shed roof pitch for your. Basically the steeper the pitch the better it can shed snow and rain. This will extend the life of your roof.