Roof Snow Guard Placement

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

Roof snow guard placement.

Not only do snow guards protect people from falling snow and ice but they also protect the owner from potential lawsuits. Once frozen precipitation loses its grip on a metal roof and begins a down hill slide it is exposed to inertia and as such a row of guards placed along the eave or gutter edge of the roof is not always enough protection against dangerous avalanche. Go up the roof 10 feet and repeat the staggered pattern of guards in the center of every valley. To restrain sliding snow snow guards use the compressive strength and density of the snowpack immediately adjacent to the roof surface therefore resisting the vector force of snow for a specific tributary area of the roof.

If a third row is used the stagger pattern matches the first row and this row too is placed 15 inches above the center of the second row. I ve read some of the folks prior experiences with metal roofs and snow and spent some of my first winter watching the big cornices slowly form over the edge and then thud down in the back of the house onto the basement bulkhead and outer edge of the little matching rooflet over the heat pump. Pad style snow guard placement snow guards are generally placed first three rows 24 inches on center with the middle row staggered 12 inches starting at the outer wall or outer most roof support. 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.

Part of my retrofit included a standing seam metal roof the type with snap together panels. Pedestrian areas are the number one place to consider snow guards on a metal roof says jason nagaki vice president snobar castle rock colo. Up to 45 psf ground snow load. Their correct placement location and attachment determine their effectiveness.

Recommendations for proper use of the product are based on tests believed to be reliable. The following warranty is made in lieu of all other warranties expressed or implied. Our approach to snow guard placement involves placing snow guards throughout the entire roof area to keep snow and ice from shifting initially. Go up the roof 15 feet and repeat the staggered pattern of guards in the center of every valley.

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 effectively eliminated. There are unitized snow guards otherwise known as discontinuous snow guards snow cleats or pad style snow guards. The remaining snow guards are evenly spaced to the top 10 feet of the rafter. Berger snow guard guidelines op cit retrieved 5 2 2014.

The top 10 feet of rafter does not require. 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. Snow guard placement will vary from region to region and will be influenced by roof pitch the lengths of roof runs and roof features. Our approach to snow guard placement involves placing snow guards throughout the entire roof area to keep snow and ice from shifting initially.

Snow guards come in a variety of shapes and sizes.