Although concrete is not a particularly good insulator heat loss or gain through a concrete slab is unlikely to be as significant as heat transmission through above.
Does bat insulation help on concrete floors.
Concrete slabs are different.
If you re in the design phase of planning your new home consider structural insulated panels insulating concrete forms and insulated concrete blocks.
Concrete floor insulation can however be installed and usually consists in a layer of solid insulation which is.
I ve been in a lot of crawl spaces and basements that have floors insulated with fiberglass batts.
This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.
These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.
3 problems with fiberglass batt insulation in floors.
If your concrete floor is for industrial or heavy duty applications then any insulation you use needs to have a high compressive strength to take the weight of whatever is above.
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Home depot does sell the right solution for residential concrete slab insulation.
Find your zone on the map and then use the above insulation r value chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
In a new home first see our information about insulating a new home which will help you choose from among the many types of insulation on the market.
Foamular 250 foam board.
If you are thinking about basements and concrete flooring the thermal loss is mainly on the edges of the slab and not through the bottom.
Foamular does not absorb water like other types of foam board which makes it ideal for below grade and under slab installations.
Foamular provides r 5 per inch of thickness winter and summer.
Concrete insulation is normally placed within the concrete itself for maximum effect.
It is often much more useful to insulate the edges of the concrete slab.
I ve seen a lot of new homes that have fiberglass batts installed in bonus room floors cantilevers and floors over basements or.
Follow the instructions printed on each bag of insulation and on the blower as well as the tips below to help you safely and successfully complete an attic insulating project.
It is denser than eps and provides more r value with a rating of 5 per inch of thickness.
Concrete floors and heat loss.