Roof Snow Guard Spacing

1 snow guard per valley every 10 feet going up the roof.

Roof snow guard spacing.

Starting at 1 foot from the bottom edge place a snow guard in the center of each valley in a staggered pattern across the entire roof area. Do not exceed 15 feet vertically between rows of guards. Up to 45 psf ground snow load. The actual quantity of snow guards necessary to stabilize the snow on a particular roof may differ from the results obtained from this tool.

Use this snow guard calculator to estimate the number of snow guards per square for your particular project. Snow guards should be equally spaced up the slope to control the dynamic movement of the snow and ice says howie scarboro national sales manager at snoblox snojax mechanicsburg pa. Who concluded that improved design guidelines standards and performance criteria are needed for snow. The correct spacing and number of the snow guards is also important for the system to work properly mcmullen relates.

Starting at 1 foot from the bottom edge place a snow guard in the center of each valley in a staggered pattern across the entire roof area. Go up the roof 10 feet and repeat the staggered pattern of guards in the center of every valley. One of the leading causes of snow guard failure is an insufficient number of rows of protection. Multiple rows of protection help balance the rows on the roof without overloading the eaves.

Manufacturers should provide tested spacing layouts based on the roof pitch panel runs from the ridge to the eave panel widths and profile and the snow load for which the home is designed. 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 the center of every valley. Snow brakes snow fences snow rails or similarly called continuous bars or fences to retain snow on a building roof are usually installed as a single continuous system across the roof eaves typically 1 to 3 feet above the eaves.

Snow guard spacing is the most import component to a successful snow retention installation. The results obtained from this tool are an estimate only. Snow and ice can avalanche dangerously off of glossy coated metal roofing. The theory of snow guards.