Conditioned crawl space vs vented crawl space crawl spaces are quite common in the us and most of them are vented but it s not the most effective way to go about keeping the area dry.
Conditioned vs unconditioned pine floors.
This means bringing the crawl space into the house into the thermal envelope more like a half height basement so it is kept warm and therefore dry and therefore clean.
Energy codes building scientists and lots of bad experiences are collectively pushing us all towards sealed aka conditioned or un vented crawl spaces.
Heat pumps heat pump water heaters or sealed combustion furnaces and water heaters should be used.
A pine floor will serve you well for the full life of your home unlike a temporary floor covering such as linoleum.
Getting the ducts into conditioned space is much easier when you can do it in the design phase of a new home.
If the ducts are in an unconditioned attic you can put spray foam insulation on the roof deck.
Air seal the floor above an unconditioned basement or crawlspace and make sure floor insulation is in full contact with this subfloor air barrier.
Install insulation in floor joist bays without misalignments compressions gaps or voids.
Low efficiency gas appliances that are prone to spillage or backdrafting are not recommended in this type of application.
Some woodworkers claim that brush on pre stain conditioners are necessary whenever using brush on or rub on stains with certain woods but that gel stains are much less prone to splotching and can be used without the pre stain conditioning.
An unconditioned space is not heated or cooled so it s the same temperature roughly as outdoor air.
Unvented conditioned attics the preference for a large segment of the u s.
There is some debate about this but many experienced woodworkers believe that standard liquid stains will produce the best results on pine fir alder.
Once the house is built and the ducts are installed your options are greatly reduced.
Air seal rim joists.
Seal all seams gaps and holes in the subfloor air barrier with caulk or foam.
A word on new homes vs.
Building america research has demonstrated unvented conditioned attics can substantially improve energy performance while allowing home builders.
Ducts in conditioned space details figure 1 vented and unconditioned attic.
Humidity will most likely cause moisture problems which often come from leaks from the plumbing pipes which usually run through crawl spaces.
Pine flooring is highly durable and around the country pine floors of 100 years old or even older are still in use today.
The air handling unit is located in a conditioned basement.
Unconditioned and semi conditioned spaces are outside the living space.
In the bers building elements report the number in the brackets see sample below of the conditioned unconditioned and total area is the drawn area minus the thickness of the internal walls.
Housing industry has been to locate hvac systems in unconditioned attics but this is highly inefficient.