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| First Page | Document Content | |
|---|---|---|
 Date: 2014-12-17 15:23:27Engineering Asphalt shingle Roof shingle Roof Framing Warranty GAF Materials Corporation Roofs Construction Architecture |
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| First Page | Document Content | |
|---|---|---|
Date: 2014-12-17 15:23:27Engineering Asphalt shingle Roof shingle Roof Framing Warranty GAF Materials Corporation Roofs Construction Architecture |
Add to Reading List |
Performance Guide: NHBPO[removed]Roofing 14.1 Roof ridge has sagged. Acceptable Performance Condition: Roofs shall be constructed to ensure the ridge does not sag excessively under normal design conditions