Roof Layout In Snow Country

Simple gable roofs shed snow and ice more quickly than complicated rooflines.

Roof layout in snow country.

Intricate roofs have many parts that incorporate several of the basic roof designs such as a gable roof sitting atop a gambrel or variations of the gable valley roof design using one or a variety of different types of roof trusses also see our very detailed diagrams showing the different parts of a roof truss. In some cases roof snow melt systems or heat tape can be used to combat ice accumulation on eaves and in valleys. Maintenance leaks drainage. If you live in the us our snow load calculator compares the total weight on your roof with the permissible load calculated according to the standards issued by the american society of civil engineers regarding the minimum design loads for buildings and other structures asce7 16.

Also different architectural styles will use the same type of roof. Shed dormers are easier to waterproof and shed snow better than gable dormers. Those in the southern climates may utilize lower pitches. It has fewer panel ribs and more of a flat surface area compared to other panels making it easier for the snow to slide off.

The most effective building design for snow country is a straight single ridge gable roof. The slope of the roof is also extremely important. The structure and materials should minimize the damages of natural snow melting and turning into ice. 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.

Proper roof ventilation and high r value roof insulation is essential to minimizing ice dam formation. The minimum pitch however that can be used with many roofing materials such as asphalt shingles or corrugated metal is 3 in 12 3 12 pitch. For the design and insulation to function properly however the roof must be installed with great care and expertise so be sure to call our toronto roofing experts when it comes time to install your new flat roof. Roof designs with changing slopes that drain steep roofs to flatter roofs are likely to promote the development of ice in the area where the roof slopes meet.

In a paradoxical twist this is a situation where snow will actually make you warmer. Inexpensive and practical shed style roofs are the best solutions for house designs in countries with heavy snow falls. Roof designs that funnel snow to narrow spaces and narrow eaves are likely to promote the development of ice dams and resulting roof leaks. For those in the northern parts of the country an 8 in 12 pitch or more is commonly used to keep excessive snow loads off the roof.

While all metal roofing panels can be installed in snow country we highly recommend standing seam.