Difference between revisions of "Water-shedding Materials"
Difference between revisions of "Water-shedding Materials"
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| colspan="2" | '''NOTICE TO READER''': This is an <u>information page only</u>. To read the standards applicable to a particular Waterproofing or Water-shedding System, refer to the actual Standard located in [[Division B | '''Division B''']]. | | colspan="2" | '''NOTICE TO READER''': This is an <u>information page only</u>. To read the standards applicable to a particular Waterproofing or Water-shedding System, refer to the actual Standard located in [[Division B | '''Division B''']]. | ||
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Water-shedding materials are used on roofs that typically have a slope of 1:3 (4" in 12") or greater. Generally, the materials installed on steep roofs each perform the same function - to shed water away from the building, rather than to waterproof it. | Water-shedding materials are used on roofs that typically have a slope of 1:3 (4" in 12") or greater. Generally, the materials installed on steep roofs each perform the same function - to shed water away from the building, rather than to waterproof it. | ||
| − | The components of a water-shedding system are designed to be overlapped and installed in courses. Despite the number of gaps or joints in the roofs, water usually will not penetrate through the roofing materials into the building, unless the flow of water is impeded (blocked or diverted laterally). Care must be taken to ensure no element of the roof system interrupts the gravitational pull of water off the roof. | + | The components of a water-shedding system are designed to be overlapped and installed in courses. Despite the number of gaps or joints in the roofs, water usually will not penetrate through the roofing materials into the building, unless the flow of water is impeded (blocked or diverted laterally). Care must be taken to ensure no element of the roof system interrupts the gravitational pull of water off the roof. Refer to the water-shedding Standards in [[Division B | '''Division B: Standards''']]. |
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Latest revision as of 16:19, 9 September 2021
Contents
Division E - General Information
Water-shedding Materials
| NOTICE TO READER: This is an information page only. To read the standards applicable to a particular Waterproofing or Water-shedding System, refer to the actual Standard located in Division B. |
Water-shedding materials are used on roofs that typically have a slope of 1:3 (4" in 12") or greater. Generally, the materials installed on steep roofs each perform the same function - to shed water away from the building, rather than to waterproof it.
The components of a water-shedding system are designed to be overlapped and installed in courses. Despite the number of gaps or joints in the roofs, water usually will not penetrate through the roofing materials into the building, unless the flow of water is impeded (blocked or diverted laterally). Care must be taken to ensure no element of the roof system interrupts the gravitational pull of water off the roof. Refer to the water-shedding Standards in Division B: Standards.
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