This article describes how to lay out the snow retainer or guard pattern on a roof in order to provide an effective snow retention system.
Roof snow guard layout.
Go up the roof 15 feet and repeat the staggered pattern of guards in every valley as placed below.
An evenly distributed snow load will preserve the long term integrity of the structure and snow guard pattern.
Do not exceed 15 feet vertically between rows of guards.
How far up the roof from the eaves should the first row of snow guards begin.
Our approach to snow guard placement involves placing snow guards throughout the entire roof area to keep snow and ice from shifting initially.
Snow guard layout spacing on all roofs.
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We give recommended side spacing between individual snow guard devices we discuss an important consideration to avoid structural damage.
An evenly distributed snow load will preserve the long term integrity of the structure and snow guard pattern.
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.
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.
With fence type snow guards when a second row is required see calculation process above it is most often placed approximately 20 per cent of the eave to ridge distance and a minimum of 1 9 m 6 ft from the first row of snow guards.