Accession Number:

ADA106567

Title:

Exterior Weathering Durability of Some Leach-Resistant Fire-Retardant Treatments for Wood Shingles: A Five-Year Report.

Descriptive Note:

Forest Service research paper,

Corporate Author:

FOREST PRODUCTS LAB MADISON WI

Personal Author(s):

• Holmes,Carlton A.
• Knispel,Ronald O.

Report Date:

1981-07-01

Pagination or Media Count:

13.0

Abstract:

As a part of a continuation study on fire-retardant treatments for wood shingles and shakes, shingles were treated by systems selected from previous research, including commercially treated class C shingles, and exposed outdoors for 2, 5 and 10 years. This is a progress report after 5 years exposure and fire testing by burning brand and modified Schylter tests. Generally acceptable results were obtained after 2 years exposure, except for a reference pyresote treatment. After 5 years exposure, all systems passed 80 percent or more of the burning brand tests except for the pyresote and the pyresote with light sealer coating. All systems showed weakness in the Schlyter, but in four of the eight systems flames on shingles were self-extinguishing. Author

Descriptors:

• *WOOD
• *ROOFS
• EXPOSURE(GENERAL)
• RESISTANCE
• TEST METHODS
• ENDURANCE(GENERAL)
• ENVIRONMENTAL TESTS
• EXTERNAL
• SEALING COMPOUNDS
• LEACHING
• WEATHERING
• FIRE RESISTANT MATERIALS
• FIRE RESISTANT COATINGS

Subject Categories:

• Wood, Paper and Related Forestry Products

Distribution Statement:

APPROVED FOR PUBLIC RELEASE