Snow Filled Roof

They then have the option of putting dormers on the roof without damage to the valleys penetrations lower roofs and property below due to sliding snow and ice.

Snow filled roof.

To complete this roof system snow stops or snow brackets are used to stop all snow movement. For warm roofs c t 1 0 as determined from table e 3 with an unobstructed slippery surface that will allow snow to slide off the eaves the roof slope factor c s shall be determined using the dashed line in fig. It s not uncommon for homeowners to think the removal process is as easy as shoveling their driveway but if not properly cared for you can end up doing more harm than good. Robert champagne principal of summit engineering says that the best way to prevent a roof collapse from snow is to be proactive.

If your roof is 1 000 square feet the total snow load is 15 000 pounds of snow. 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. This allows the snow to stay on while venting the roof system. The harsh reality of a snow filled roof the winter is in full swing and the chance of roof damage has hit its peak due to heavy snowfall and ice accumulation.

If the snow weighs 10 pounds per cubic foot and there are 1 5 feet on the roof each square foot of the roof is getting 15 pounds of pressure. People have been killed by snow avalanches sliding off roofs during big snow winters. E 2a provided that for nonventilated warm roofs their thermal resistance r value equals or exceeds 30 ft 2 h f btu 5 3 c m 2. To figure out the load on your roof take the depth of snow in feet and multiply it by the weight of a cubic foot of snow.