Roof Pitch For Snow Country

Out of this snow storm an idea was conceived to create a shop that would replace the old cabin.

Roof pitch for snow country.

The 1 4 inch per foot slope was not adequate. In the video above i explain the importance of roof pitch when it comes to snow. Hi brian i just completed a house directly south of you in leavenworth. This has more to do with weather conditions than pitch.

Roof pitch for snow country. The total snowfall last winter was over 250 inches. On june 7 2020 by jaka santuy. Massive snow suddenly sliding off a roof sometimes kills the unsuspecting caught below it.

A minimum slope of 1 inch per foot is recommended in snow country. Roof pitches of 3 12 4 12 5 12 or 6 12 work best for metal buildings in snow country. Valleys dormers it seems to form a snow wedge that as david said can have impressive density and depth. The conclusion was to avoid avalanches by building a 4 12 roof pitch with non sliding roofing material such as asphalt.

I am thinking of removing the two layers of shingles and installing trusses on the present roof deck to increase the roof pitch so that snow would slide off a metal roof. If the design necessitates a roof slope that drains onto a traffic area snow retention devices should be provided to hold the snow in place. My gable roof has a pitch of 2 1 2 in 12 and two layers of asphalt shingles. Snow can certainly slide off of a 4 12 roof.

Managing snow on roofs mountain ts hendricks ture. The standing seam metal roof on this ice hockey rink leaked like a sieve a few weeks after the first snow arrived. Some time ago an article in fine homebuilding addressed roof designs in snow country. The higher the roof pitch the more often the snow slides off.

If you are building a new roof however consider the climate to determine the correct pitch and proper materials. Cheltenham town offer pitch update installing snow guards metal estimating roof pitch determining have your flat roof and snow too sheet. 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. Anything less than 1 12 pitch is a huge mistake in snow prone.

Anything over a 6 12 pitch tends to make massive amounts of snow slide off the roof without warning. Alpine design basics 360niseko. So in general the shallower pitch can be more dangerous with bigger slides. 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 will extend the life of your roof.