Basement Subfloor Systems are Different

When considering a basement subfloor system you need to realize that they are not all the same. When you build a basement room you must have a good subfloor system for many reasons.

The moisture that can come up from the floor must be controlled because the floor sits right on top of the soil and are cold and wet from the ground and combined with the warm, moist air from the top or inside air. This is true when the humidly is 50% or greater. It condenses on to surfaces that are cold especially things like your uninsulated foundation walls and bare concrete blocks

The subfloor needs to prevent the moisture caused from the condensing onto the cement surfaces because it blocks the cold that is conducted through the cement floor slab.

There is a process called hydrostatic water pressure that causes the water to pass through the cement floor slab on to the basement floor. Extreme weather conditions or power outages can also cause the sump pumps to not work .

A good basement subfloor needs an air space that allows the water to drain away from floor drain or to naturally evaporate with the changing air temperature in the room. Inadequate insulation in the floor can result in up to 3% loss of heat in a home. The properly installed subfloor should provide adequate  protection to reduce heat loss and make the walking surface warmer to walk on

Another advantage is the reduction in sound that is a result in a properly installed basement subfloor. This is something you should keep in mind when working with basement projects.

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