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// CODE SNIPPET

R802.1.5.1 Pressure Process

2015 Michigan Residential Code > 8 Roof-Ceiling Construction > R802 Wood Roof Framing > R802.1 General > R802.1.5 Fire-Retardant-Treated Wood > R802.1.5.1 Pressure Process
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For wood products impregnated with chemicals by a pressure process, the process shall be performed in closed vessels under pressures not less than 50 pounds per square inch gauge (psig) (344.7 kPa).

Related Code Sections


2303.2.1 Wood, Pressure Process
For wood products impregnated with chemicals by a pressure process, the process shall be performed in closed vessels under pressures not less than 50 ...
2015 Michigan Building Code > 23 Wood > 2303 Minimum Standards and Quality > 2303.2 Fire-Retardant-Treated Wood > 2303.2.1 Pressure Process
R802.1.5.1 Roof-Ceiling Construction, Pressure Process
For wood products impregnated with chemicals by a pressure process, the process shall be performed in closed vessels under pressures not less than 50 ...
2015 Michigan Residential Code > 8 Roof-Ceiling Construction > R802 Wood Roof Framing > R802.1 General > R802.1.5 Fire-Retardant-Treated Wood > R802.1.5.1 Pressure Process
R902.2 Roof Assemblies, Fire-Retardant-Treated Shingles and Shakes
Fire-retardant-treated wood shakes and shingles shall be treated by impregnation with chemicals by the full-cell vacuum-pressure process ...
2015 Michigan Residential Code > 9 Roof Assemblies > R902 Fire Classification > R902.2 Fire-Retardant-Treated Shingles and Shakes
1505.6 Roof Assemblies and Rooftop Structures, Fire-Retardant-Treated Wood Shingles and Shakes
Fire-retardant-treated wood shakes and shingles shall be treated by impregnation with chemicals by the full-cell vacuum-pressure process ...
2015 Michigan Building Code > 15 Roof Assemblies and Rooftop Structures > 1505 Fire Classification > 1505.6 Fire-Retardant-Treated Wood Shingles and Shakes
Section R902 Roof Assemblies, Fire Classification
and shingles shall be treated by impregnation with chemicals by the full-cell vacuum-pressure process, in accordance with AWPA C1. Each bundle shall ...
2015 Michigan Residential Code > 9 Roof Assemblies > R902 Fire Classification
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