Conditioned Crawlspaces

A conditioned crawlspace is a crawlspace constructed and insulated so that it is part of the conditioned space of the house. Conditioned crawlspaces remain less common than vented crawlspaces despite performing better in terms of safety, health, comfort, durability and energy consumption.

The following documents examine the benefits of conditioned crawlspaces, how and why they work, and how to understand and interpret relevant sections of the building code. Related documents, such as those discussing basement insulation more generally, are also included in this section.

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BSD-144: Increasing the Durability of Building Constructions

By Joseph Lstiburek
Download.pdf  140.2 KB


BSI-009: New Light In Crawlspaces

By Joseph Lstiburek
Download.pdf  285.3 KB


RR-0906: Field Monitoring and Hygrothermal Modeling of Interior Basement Insulation Systems

By John Straube
Download.pdf  2.6 MB

1-3 of 3 Items