Roof Snow Guard Spacing

Up to 45 psf ground snow load.

Roof snow guard spacing.

The rafter length from gutter to ridge. With the middle row staggerd 12 and covering the remaining roof to within 10 feet of the ridge with evenlyspaced snow guards between the bottom three row pattern and the top un guarded area. Approximate slope of the roof. Using a spacing layout snow guards are installed to help prevent the dangerous slide of snow and ice.

Go up the roof 15 feet and repeat the staggered pattern of guards in every valley as placed below. As haddock notes the steeper the roof the greater the forces are that act on the snow guard assembly. You can use the following snow guard calculator to calculate how many roofing snow guards are needed for your roof. Our approach to snow guard placement involves placing snow guards throughout the entire roof area to keep snow and ice from shifting initially.

The data is meant only to assist roofing. 2 snow guards per valley every 15 feet of roof. Please enter the rib spacing in inches inches. Snow and ice can avalanche dangerously off of glossy coated metal roofing.

Enter your snow load in psf psf. We need the following to give the proper spacing of snow guards. Alpine snow guards recommends placing a three row pattern on the lower roof 24 o c. Starting at 1 foot from the bottom edge place 2 snow guards equally spaced apart in the valley in a staggered pattern across the entire roof area.

Our approach to snowguard placement involves placing snow guards throughout the entire roof area to keep snow and ice from shifting initially. For example a 4 12 roof that is 50 feet from eave to ridge with a 40 psf design roof snow load will exert 633 pounds per linear foot of eave on the snow guard assembly he explains. If you hold snow and ice in place with an effective snow guard layout you evenly distribute the load on the roof and the snow guards and the threat of avalanche is. The data found on this web site is produced from sources believed to be reliable.

Snow and ice can avalanche dangerously off of glossy coated metal roofing. The running feet along the eaves that you want to protect. Snow guard placement will vary from region to region and will be influenced by roof pitch the lengths of roof runs and roof features. Metal rubber tpo pvc slate asphalt shingle tile glass.