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  1. Tyvek and / or fanfold insulation under siding

    Apr 2, 2015 · I have a 1950s home and am adding new vinyl siding. There is an option for Tyvek and / or fanfold insulation under the siding. My understanding is water will get through the siding so the main …

  2. Is R-1 fan-fold insulation cost-effective as vinyl siding underlayment ...

    May 29, 2016 · I am installing vinyl siding on a home in Pittsburgh PA as part of a HUD financed project. As such, HUD has supplied the specs. The requirement is for R1 fanfold followed by Tyvec. I think …

  3. Thickness of XPS Siding Underlayment - GreenBuildingAdvisor

    Dec 21, 2022 · That said, there are roughly a bazillion homes with vinyl siding over that type of underlayment and few appear to have problems, so you might be fine. But moisture-related issues …

  4. Interior vapor barrier with EPS under vinyl exterior

    Aug 6, 2015 · Fortunately, most fanfold foam underlayment products (the type installed by vinyl siding contractors) aren't tight vapor barriers. In some cases, the facings on these products are deliberately …

  5. Available Exterior Insulation Options - GreenBuildingAdvisor

    Mar 8, 2022 · Upstate NY, Climate zone 5A, new construction. I was hoping to add exterior foam insulation under my vinyl siding (vinyl siding is typical around here) to supplement 2×6 wall fiberglass …

  6. Thoughts on adding rigid insulation over existing siding ...

    Oct 19, 2011 · We have a historic house that is undergoing a deep energy retrofit with rigid insulation being applied to the outside and then strapping and new siding. The contractor has ripped off a few …

  7. Detached garage in MA - GreenBuildingAdvisor

    Jan 21, 2024 · For the best moisture management, ensure that the insulation is properly detailed with a weather-resistant barrier that overlaps correctly at the seams. Fanfold Insulation on Other Sides: …

  8. Is bubble insulation as good as rigid foam? - GreenBuildingAdvisor

    Jun 6, 2010 · He said he normally installs this under metal roofs, but it would be as good as R value wise as 0.5 inch rigid foam. Is this true? Are there any issues with using it as an outside wall …

  9. Using Fanfold Insulation Bundles - GreenBuildingAdvisor

    Jun 5, 2022 · however, I have been gifted about 12 bundles of fanfold from a friend. As I understand, this is EPS insulation and I’m not installing vinyl so I shouldn’t need it on the sheathing. Where is it …

  10. Can Vinyl Siding be Applied Over Furring Strips?

    Apr 18, 2012 · Wall assemblies that incorporate rigid foam insulation over exterior sheathing, followed by furring strips and siding, are becoming common. The extra layer of insulation helps reduce thermal …