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Guide describing how to install a capillary break under a slab foundation using either polyethylene sheeting or rigid insulation installed over aggregate or over sand and geotextile matting.
Handbook providing guidance on the design and construction of foundations for homes, including insulation, air sealing, and water management details for basements, crawlspaces, and slabs.
Presentation describing the challenges of insulating an existing basement, presented to the Building America residential energy-efficiency stakeholder meeting.
Vapor retarder plastic should not be installed over fibrous insulation on basement or crawlspace walls; rigid foam or spray foam should be installed directly against the concrete, behind the blanket insulation.
Report describing how to construct a frost protected shallow foundation (FPSF) as a practical alternative to a deeper, more-costly foundation in cold regions with seasonal ground freezing and the potential for frost heave.
Video describing an “excavationless” retrofit technique developed by the University of Minnesota to install exterior insulation around the foundation of an existing home by using high-pressure water to cut a trench through the dirt along the edge of a concrete foundation, remove the mud with a...