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Missing Granules Normally a certain number of granules will be loose, especially after application. On aging shingles, missing granules indicate a need for replacement. |
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Buckled Shingle Improperly applied felt, roof deck movement, wrinkled underlayment, poor roof ventilation, new shingles applied over old, rough shingles. Buckled shingles could fracture and cause leaking. |
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Missing Shingles Caused by improper fastening and exposure to high winds. |
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Curling Shingles Caused by lack of ventilation, high nails, water absorption, lack of back coating. |
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Rotting Caused by moisture absorption in certain shake materials especially wood. |
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Algae Growth Air-borne algae deposits and grows on roof which can affect long-term performance. Wood shakes are particularly susceptible to moss/algae growth. Algae occurs most often in damp and/or humid climates or in shaded areas of the roof. |
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Damaged flashing Caused by damaged or missing caulking, improper installation on a new roof, drying and cracking on an old roof. |
.Cedar Shake Roof Issues |
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Splitting Shakes Caused by natural aging and aggravated by water infiltration in wood, cement tile or fiber-reinforced cement (FRC) shakes. Excessive foot traffic on the roof can cause roof splitting and damp climates with repeated freezing and thawing. |
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Missing Shakes Caused by improper fastening, wind damage, deterioration of shakes. |
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Curling Caused by water absorption (in wood or fiber-reinforced shake). |
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Termite Damage Caused by shake materials that provide sustenance for termites-particularly wood. |
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Rotting Caused by moisture absorption in certain shake materials especially wood. |
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Algae Growth Air-borne algae deposits and grows on roof which can affect long-term performance. Wood shakes are particularly susceptible to moss/algae growth. Algae occurs most often in damp and/or humid climates or in shaded areas of the roof. |
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Damaged flashing Caused by damaged or missing caulking, improper installation on a new roof, drying and cracking on an old roof. |
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Splitting Shakes Caused by natural aging and aggravated by water infiltration in wood, cement tile or fiber-reinforced cement (FRC) shakes. Excessive foot traffic on the roof can cause roof splitting and damp climates with repeated freezing and thawing. |
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