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What is the difference between Grace Triflex and Grace Ice & Water shield?

April 26, 2017grace grace triflex Ice Shield water

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What is the difference between Grace Triflex and Grace Ice & Water shield?

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Grace Tri-Flex 30 synthetic roofing underlayment is a premium water-shedding underlayment. Grace Tri-Flex 30 is not designed to protect against standing water or water moving upslope resulting from factors such as accumulated snow, ice, wind-driven rain, or debris. For protection from standing water or water moving upslope, it is recommended that Grace Ice & Water Shield self-adhered underlayment be used.