BASEMENT, FOUNDATION, CRAWLSPACE & STRUCTURE INSPECTION GUIDE
This guide for the House of Horrors® in Boulder, Colorado, is currently being produced for self-guided tours.
The guide is based on and refers to the most recent International Residential Code (IRC), which can be found online at https://codes.iccsafe.org/public/collections/I-Codes.
Free, Online Course
To learn more, take InterNACHI's free, online Structural Issues for Home Inspectors Course.
STANDARDS OF PRACTICE
The International Standards of Practice for inspecting the Basement, Foundation, Crawlspace & Structure is located at www.nachi.org/sop.
Observation
Attic access should have a double header between the ceiling joists. Intersecting ceiling joists need to be secured by joist hangers. Attic access should meet the 22”x30” clear opening recommend in the UBC.
Observation
Main support Girder has been cut to accommodate plumbing pipes.
Observation
The double wall plate does not extend to the corner of the wall.
Observation
Structural Truss was cut to accommodate a heat duct. (This may compromise the structural integrity of the truss).
Observation
2x4 ceiling joist is undersized. (The remainder of the ceiling joists are 2x6).
Observation
Hand assembled wood gussets are not acceptable without approval of a structural engineer. (Any modification of an engineered structural truss will require a review and approval by a structural engineer).
Observation
Purlin Strongback is missing the proper vertical support on the end and is not making contact with the Rafter.
Observation
Ridge beam has no vertical support at the end.
Observation
Balloon wall has no fire blocking installed between the studs.
Observation
Wall opening is missing Jack studs.
Observation
Door opening is missing Trimmer.
Observation
Diagonal/Corner bracing is missing.
Observation
Door opening has no header.
Observation
Door opening is missing the framing under the Threshold.
Observation
Structural block cells are missing concrete fill required for strength and to secure the anchor bolts.