Ventilation in a crawl space
Ventilation in a crawl space
(OP)
Some replies in my other post got me thinking about ventilation in a crawl space and freezing issues. By code you are supposed to have ventilation in a crawl space. How do you prevent the plumbing from freezing if there are vents in the crawl space? Are the vents just closed/blocked off during the winter?






RE: Ventilation in a crawl space
RE: Ventilation in a crawl space
Plus you have the contribution in the heat from the structure above, if it is heated.
Mike McCann, PE, SE (WA)
RE: Ventilation in a crawl space
From Lstiburek's US Dept of Energy white paper:
Unvented Crawlspaces Code Adoption
RE: Ventilation in a crawl space
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
RE: Ventilation in a crawl space
Heated and vented is common in areas where freezing is a concern.
I think you meant heated and UNVENTED. That is the only way I will do crawlspaces. Cold floors are impossible to live with and insulated floors over cold spaces are always cold. Treat the crawlspace like a basement & everything is better: no moisture problems, no deteriorating joists, no freezing plumbing, easy to run HVAC in a conditioned space, the floor is warm. etc. etc.
RE: Ventilation in a crawl space