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Haag Engineering 12/1 Shingle Gauge
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Shingle Gauge Engineering
The 1/12 Shingle Gauge estimates the warranty levels of 3-Tab fiberglass asphalt shingles installed after Jan. 2011.
Based on analyses made by Haag Engineering the thickness correlates to a warranty level
Scales for both 3-Tab Organic and Laminated shingle varieties
A great tool important for determining what a comparable replacement shingle might be.
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