Are First Floor Ceilings Supposed To Be Insulated
Ceilings are isolated by hanging the ceiling with special hardware from the floor or above.
Are first floor ceilings supposed to be insulated. If you were on a very skinny budget and had to make a choice you would insulate your ceiling first. I can tell a noticeable difference when my guys are walking on a second floor of a remodel where they did not insulate between the floors in comparison to when they walk on the second floor of a home we built and insulated between the floors. Once the ceiling and floor above is sealed you won t be in a hurry to dismantle it. Insulation is a once only cost that makes your house more comfortable for it s entire lifespan without another cent having to be spent.
But to sum up insulation won t really matter without doing all this other work. Sometimes buildings are construction with first floor eaves and soffits. If the second floor is properly insulated walls and ceilings then the presence of the insulation between the two floors is a non issue. Insulate the mid floor during construction.
4b slab floors built directly on the ground. Given the limited use of the addition we want to minimize heating cooling costs propane furnace and central a c for main floor and thinking a separate all electric system for second floor. 4c as an alternative to floor insulation foundation walls of unvented crawl spaces. This will also increase thermal insulation for the room above and below making them more comfortable to be in and quieter too.
The space between the first floor joists is not a cold space it will be as warm as the rest of the house under the ground floor there is airflow from the airgrates to take away any condensation as in the roofspace there is no airflow to the first floor joists so no gap is needed. In my opinion it is reduced by at least 75 just putting bats between the floors. If you are considering installing insulation between the floors of a multi storey house make sure you get it done while the house is being constructed or during a renovation. This portion will be insulated with fiberglass r 39 in the ceiling r 21 in the walls.
Insulated between floors have very little if not quite no insulating benefit. However there are certain scenarios and reasons like sound proofing to insulate between floors. But life and our budget does not always allow us to afford both. Floors above cold spaces such as vented crawl spaces and unheated garages.
The best answer is both. If the first floor soffits open into the joist bays these should be air sealed and insulated. Or the ceiling is built below the above floor and attached to the walls of the sound isolated room.