Assuming i do spray foam the walls, i am then considering the crawlspace to be conditioned.
New Insulate Floor Joists In Crawl Space
Background. Dim light filtered in from vents in the walls. Modern experts recommend against insulation between floor joists.
3 Problems With Fiberglass Batt Insulation In Floors from www.energyvanguard.com
Insulating a dirt crawl space can reduce your heating bill and keep your home's floors warmer in winter. Crawl space has 3 vents to the outside which are as closed as they can be but let in a lot of cold air. How to insulate a crawl space depends on whether its ventilated or unventilated.
This section of the house was built in 1967 and has a 4 2x12 girder that runs down the center of the house.
When the basement or crawl space has vents installed, insulating building codes often call for these vents as a means of circulating air in crawl spaces, and sometimes in basements. Today, we know that fiberglass performs poorly when installed between crawl space joists. When you insulate the floors the only heat reaching then comes from above and we all know where that warm air heads, up. That reduces humidity and temperature keeping the room above it better as well.
