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More stories about Underlayments

  • Hands-On Review of Hitachi's NV50AP3 Cap Nailer

    A production manager for a St. Louis remodeler has high praise for this cap nailer after a year of use fastening foam, housewraps, and synthetic underlayments.

  • Advanced Building Products Mortairvent Membrane

    Suitable for all exterior siding applications, this rainscreen technology creates a drainage and ventilation cavity between the weather resistant barrier and the exterior wall.

  • Whatever Happened to 30# Felt?

    Asphalt-impregnated felt — aka tar paper — enjoyed a 100-year run as the preeminent roofing and siding underlayment.

  • Do Synthetic Underlayments Make for Better Roofs?

    While some old pros are sticking with organic felts because they're low-priced and breathable, many are moving to synthetics for greater flexibility

  • Leaks at H-Clips With Zip Sheathing

    Proper taping technique is key.

  • Tough Roof Underlayment

    NovaSeal underlayment is lighter and stronger than felt and provides better coverage, says maker

  • Polymer Roof Underlayment

    Surround SR Underlayment is a waterproof synthetic polymer that’s 40 percent lighter than 30-pound roofing felt — as well as more durable and slip-resistant and less prone to tearing, says the maker.

  • No-Leak Membrane for Concrete Footings

    The Delta Footing Barrier is a three-ply impermeable membrane that goes on top of freshly poured footings before the foundation is built.

  • Reroofing With EPDM Rubber

    Roll roofing was the wrong material for the flat roof under this second-story deck.

  • Open-Joint Siding

    In the Seattle area, where I work, we get a lot of rain. From the mid-90s to the mid-2000s, there were many high-profile cases of water damage caused by improperly detailed siding, mostly on condos and other multifamily housing.