Download | - View final version: The effect of moisture on asphalt shingles (PDF, 641 KiB)
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DOI | Resolve DOI: https://doi.org/10.4224/20386620 |
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Author | Search for: Ayukawa, M.; Search for: Sereda, P. J.1 |
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Affiliation | - National Research Council of Canada
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Format | Text, Technical Report |
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Physical description | 11 p. |
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Subject | Roofs |
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Abstract | Samples of asphalt shingles made by seven manufacturers and available in the Ottawa area were subjected to cyclic conditions of drying in the oven at 160 degrees F. and wetting by immersion in water under partial vacuum. It was found that samples 2 by 6 inches absorbed 1.5 to 5.9 gm. of water in 4 days of vacuum saturation accompanied by a dimensional increase of from 0.4 to 1.1 per cent. On repeated cycles of drying and wetting the samples exhibited an irreversible shrinkage ranging from .02 to .07 inch. |
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Publication date | 1956-05-01 |
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Publisher | National Research Council of Canada |
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Series | |
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Language | English |
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Peer reviewed | No |
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NRC number | NRC-IRC-9200 |
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NPARC number | 20386620 |
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Export citation | Export as RIS |
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Report a correction | Report a correction (opens in a new tab) |
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Record identifier | 1e0577b9-b1a8-449f-a08f-b3ddf52749b4 |
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Record created | 2012-07-25 |
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Record modified | 2022-07-26 |
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