To enclose the space in a thermal envelope.
Insulating a floor from above.
From above or below.
The goal however is the same.
Thanks for your help.
Clayton ebsch march 26 2018 at 4 35 pm.
When insulating from above right a loose fill insulation such as cellulose is breathable and will fit into every nook and cranny.
There are two types of crawl spaces ventilated and unventilated and each requires its own form of insulation.
Another significant detail is to make sure the insulation is held tight to the bottom of the subfloor.
An insulated floor can make a garage much more comfortable to work in during cold weather.
To prevent air leaks it s important to install caulk at all of the indicated locations.
This will be heated living space.
About 6 7 inches between the slab subfloor with always.
Is it okay to place fiberglass insulation between joists that are on a concrete slab with osb subfloor above.
Gaps negate the r value of the insulation.
You can attach wood sleepers to the floor fill the gaps with rigid foam insulation and then apply your finish flooring.
4b slab floors built directly on the ground.
Floors above cold spaces such as vented crawl spaces and unheated garages.
The paper side goes up to the floor and insulation shows.
Most homes require at least r 13 though homes in cold areas can benefit from more insulation.
4c as an alternative to floor insulation foundation walls of unvented crawl spaces.
There are two ways to handle insulating concrete floors.
Floor above a garage this detail shows a garage bonus room floor framed with open web floor trusses.
Without insulation heat and cool air are easily lost through the floor.
It s easier to insulate if there s access to the floor from below and you won t have to disrupt the floorboards here left quilt insulation is pushed between the joists.
This can be done through blown in insulation and unfaced or faced batt insulation.
Insulation also helps to preserve the air quality and reduce energy costs.
To insulate the floor of the room above the garage seal the space between the floor of the room and the ceiling of the garage and the top plate and the header joist with insulation.