Loop the Loop Snow Guards For Asphalt Shingle, Slate and Cedar Shake Roofs The Loop snow guard is an economy guard for wood deck applications under slate, wood shakes or asphalt shingles. Available in copper only. Minimum required quantity for proper installation: one-quarter pitch roof use 50 guards per square, one-third pitch roof use 75 guards per square, and one half pitch roof use 150 guards per square.
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