BASC Search | Building America Solution Center

Right - The basement walls are wrapped with 3 inches of XPS rigid foam that will be taped at the seams then covered with a dimpled plastic water barrier.

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Foil-faced rigid foam and spray foam can be used to insulate a basement on the interior; use good moisture management techniques to keep the basement dry

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Step 1. Apply roof underlayment over roof deck and up the sidewall over the rigid foam insulation

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Closed-cell spray foam fills the roof joist cavities forming an air barrier between the masonry parapet wall and the roof sheathing

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Capillary Break at Crawlspace Floors - Polyethylene Lapped Up Walls and Piers or Secured in the Ground

Guide

Guide describing how to create a capillary break at all crawlspace floors using polyethylene sheeting to manage moisture in crawlspaces.

Capillary break at all crawlspace floors using ≥ 6 mil polyethylene sheeting, lapped 6-12 in., and lapped up each wall or pier and fastened with furring strips or equivalent

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Right – A 1-inch layer of XPS rigid foam covers the 2x6 wall studs and is topped by ½-inch-thick plywood sheathing, which is covered with draining house wrap and serves as a nailing surface for siding and trim.

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Water Managed Existing Sill Beams and Sill Plates

Guide

Guide describing how to insulate the sill beam or sill plate on the exterior side in a way that allows drying to the exterior, as part of an exterior wall upgrade.

Building Materials with High Moisture Content Not Enclosed

Guide

Guide describing why and how to avoid using damp materials in construction.

ROXUL Mineral Wool | Madrona Passive House

Video

Video describing the installation of mineral wool monolithic exterior insulation.

They All Laughed, BSI-026

Reference

Article describing the evolution of the IRC to permit class 3 vapor retarders (latex paint) in walls coupled with exterior continuous insulation to allow drying and reduce condensation risk.