Joist bays the open spaces between floor joists are prime hosts for insulation under specific circumstances.
How to insulate between existing floors.
When the basement or crawl space.
How to insulate between finished floor and ceiling spray foam is a great option and generally speaking the holes required to inject the foam are extremely small.
Also insulate 4a any portion of the floor in a room that is cantilevered beyond the exterior wall below.
4c as an alternative to floor insulation foundation walls of unvented crawl spaces.
Remove the subfloor in your shed.
Between the ceiling of the ground floor and the floor of the second storey.
The main reason to insulate between floors is to reduce the noise transfer between floors.
Add wire insulation hangers as needed to ensure a more secure hold.
4b slab floors built directly on the ground.
Your neighbor from either upstairs or downstairs has a tendency to play loud disrupting music every evening.
How to insulate a floor from the top.
Yes there are several approaches to handle this problem.
Although achieving an entirely soundproof home is quite possible for most people soundproofing between existing floors can be quite difficult.
This will dampen sound and might not cost anything i.
Is the upper floor hardwood or stone.
At first blush it makes some kind of sense.
I recommend xps rigid foam for this installation as it is the best option for use at or near grade.
If you re building or renovating a double or multi storey house then there may be good reason to considering insulating the mid floor i e.
Say for example you live in an apartment building.
Place it into the space between your existing floor joists relying on friction to hold it in place.
In a perfect world you would be able to unscrew invisible bolts remove drywall panels install insulation and reinstall the panels our less than perfect world of permanently attached wallboard means time consuming hacking away of gypsum individually removing drywall screws or nails installing r 13 or greater fiberglass roll insulation and re installing the drywall.
First option possibly zero cost.
During energy audits we get into a lot of building shell discussions should i insulate my basement or should i insulate my interior walls to pick two completely random questions that i totally haven t written about.
The question of whether you should insulate between floors is remarkably similar to that of insulating interior walls.
Here s how to insulate your shed floor from the top.
If so consider laying down a rug or carpet with a thick pad.
Insulate existing concrete.
Floors above cold spaces such as vented crawl spaces and unheated garages.