BayPointArchitect
Sawhorse
Given:
I am not the AHJ but the designer for this project.
Applicable code: 2012 IRC R408
Contractor/developer wants to have only three large vents for the crawl space where highlighted in orange. None of these are located within 3 feet of the building corners.
Building location is in the most arid climate of Arizona where ground moisture is not a concern.
Question:
I have designed a hybrid solution that shows exposed earth where there will be minimal ventilation. For the corners of the crawl space that do not have vents located within 3 feet of the corners, I have called for vapor barrier to cover the earth - which is what is required for a non-vented crawl space. The contractor insists that nobody uses vapor barrier in crawl spaces because it is not practical / needed in this arid climate. Is that really okay?
I am not the AHJ but the designer for this project.
Applicable code: 2012 IRC R408
Contractor/developer wants to have only three large vents for the crawl space where highlighted in orange. None of these are located within 3 feet of the building corners.
Building location is in the most arid climate of Arizona where ground moisture is not a concern.
Question:
I have designed a hybrid solution that shows exposed earth where there will be minimal ventilation. For the corners of the crawl space that do not have vents located within 3 feet of the corners, I have called for vapor barrier to cover the earth - which is what is required for a non-vented crawl space. The contractor insists that nobody uses vapor barrier in crawl spaces because it is not practical / needed in this arid climate. Is that really okay?