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Insulating floor joists?
I have a room that is over a crawl space. The room has hardwoord
floors. Last year I had the permiter of the crawl, and the block walls stripped of the old wet pink insulation, and sprayed with the yellow foam. This definately helped with the temperature of the room, and the coldness of the floor. Would it be beneficial to also insulate (maybe with the pink stuff) the floor joists under the floor? I live in the midwest--10 to 30 degrees most of the winter. thanks. |
Insulating floor joists?
"patrick" wrote in message oups.com... I have a room that is over a crawl space. The room has hardwoord floors. Last year I had the permiter of the crawl, and the block walls stripped of the old wet pink insulation, and sprayed with the yellow foam. This definately helped with the temperature of the room, and the coldness of the floor. Would it be beneficial to also insulate (maybe with the pink stuff) the floor joists under the floor? I live in the midwest--10 to 30 degrees most of the winter. Absolutely it would. You can use foam board, you can spray, you can use fiberglass. |
Insulating floor joists?
insulating around the outside edge would help. if you insulate under
the floor it will probably make the basement colder. Empressess #124457 The best Games a href=http://www.gamestotal.com/Multiplayer Online Games/a a href=http://www.gamestotal.com/Strategy Games/abra href=http://uc.gamestotal.com/Unification Wars/a - a href=http://uc.gamestotal.com/Massive Multiplayer Online Games/abra href=http://gc.gamestotal.com/Galactic Conquest/a - a href=http://gc.gamestotal.com/Strategy Games/abra href=http://www.stephenyong.com/runescape.htmRunescape/abra href=http://www.stephenyong.com/kingsofchaos.htmKings of chaos/abr patrick wrote: I have a room that is over a crawl space. The room has hardwoord floors. Last year I had the permiter of the crawl, and the block walls stripped of the old wet pink insulation, and sprayed with the yellow foam. This definately helped with the temperature of the room, and the coldness of the floor. Would it be beneficial to also insulate (maybe with the pink stuff) the floor joists under the floor? I live in the midwest--10 to 30 degrees most of the winter. thanks. |
Insulating floor joists?
How does foam board attach? I assume that is the blue colored board?
I would think the foam might be the most effective, but I can't install it myself. Which is then more effective--the foam board or fiberglass? I don't understand the comment about making the basement colder, this is above a closed off crawl space. Edwin Pawlowski wrote: "patrick" wrote in message oups.com... I have a room that is over a crawl space. The room has hardwoord floors. Last year I had the permiter of the crawl, and the block walls stripped of the old wet pink insulation, and sprayed with the yellow foam. This definately helped with the temperature of the room, and the coldness of the floor. Would it be beneficial to also insulate (maybe with the pink stuff) the floor joists under the floor? I live in the midwest--10 to 30 degrees most of the winter. Absolutely it would. You can use foam board, you can spray, you can use fiberglass. |
Insulating floor joists?
Edwin Pawlowski wrote:
"patrick" wrote in message oups.com... I have a room that is over a crawl space. The room has hardwoord floors. Last year I had the permiter of the crawl, and the block walls stripped of the old wet pink insulation, and sprayed with the yellow foam. This definately helped with the temperature of the room, and the coldness of the floor. Would it be beneficial to also insulate (maybe with the pink stuff) the floor joists under the floor? I live in the midwest--10 to 30 degrees most of the winter. Absolutely it would. You can use foam board, you can spray, you can use fiberglass. In most areas, floor insulation (between the floor joists) is required by code...I'm amazed that in the midwest this wasn't done. You'll save a BUNCH! |
Insulating floor joists?
House was built in '23......so no surprise to me.
Curmudgeon wrote: Edwin Pawlowski wrote: "patrick" wrote in message oups.com... I have a room that is over a crawl space. The room has hardwoord floors. Last year I had the permiter of the crawl, and the block walls stripped of the old wet pink insulation, and sprayed with the yellow foam. This definately helped with the temperature of the room, and the coldness of the floor. Would it be beneficial to also insulate (maybe with the pink stuff) the floor joists under the floor? I live in the midwest--10 to 30 degrees most of the winter. Absolutely it would. You can use foam board, you can spray, you can use fiberglass. In most areas, floor insulation (between the floor joists) is required by code...I'm amazed that in the midwest this wasn't done. You'll save a BUNCH! |
Insulating floor joists?
patrick wrote:
How does foam board attach? I assume that is the blue colored board? I would think the foam might be the most effective, but I can't install it myself. The foam board can be attached almost any way you can think of - nails, screws, adhesives. You can cut the board to make a wedge fit between the joists and use a can of expanding foam to seal the gaps. Which is then more effective--the foam board or fiberglass? Rigid insulation has roughly twice the R-value of fiberglass batt insulation. I don't understand the comment about making the basement colder, this is above a closed off crawl space. The heat coming from the room above the crawlspace won't supply enough heat to heat the basement to any measurable degree. It's not a factor. R |
Insulating floor joists?
Does the fact that he has HW floors make a difference in foam insulation,
i.e. is it a fire code violation since there is no fire-resistant covering over the foam? Or does that apply just to walls? |
Insulating floor joists?
Buck Turgidson wrote:
Does the fact that he has HW floors make a difference in foam insulation, i.e. is it a fire code violation since there is no fire-resistant covering over the foam? Or does that apply just to walls? The fire resistive barrier must be on the occupied side of the foam so it is acceptable to have rigid foam insulation in the crawl space. R |
Insulating floor joists?
On 2006-09-17, Buck Turgidson wrote:
Does the fact that he has HW floors make a difference in foam insulation, i.e. is it a fire code violation since there is no fire-resistant covering over the foam? Or does that apply just to walls? My understanding is that the building code specifies that a thermal barrier is required between the foam and the living space, and that 1/2" of gypsum board is a thermal barrier, but that it doesn't enumerate all possible thermal barriers. So some jurisdictions accept alternate thermal barriers, e.g. 5/8" of wood, in which case the subfloor and HW floor would presumably be sufficient. Cheers, Wayne |
Insulating floor joists?
On 2006-09-17, patrick wrote:
So....what about insulating the floor joists for a room that has a full basement (exposed) ceiling under it. This room is above the room that houses the furnace for the house. Basically you want to have a thermal envelope around your living space. If the basement is living space, don't insulate the joists between it and the first floor. If it is not living space, then insulating between the joists will help. Cheers, Wayne |
Insulating floor joists?
wrote in message ups.com... insulating around the outside edge would help. if you insulate under the floor it will probably make the basement colder. Empressess #124457 patrick wrote: I have a room that is over a crawl space. The room has hardwood floors. Just curious, how does insulating above the crawl space make the basement colder? :) |
Insulating floor joists?
"patrick" wrote in message I don't understand the comment about making the basement colder, this is above a closed off crawl space. The person answering that did not read the message fully. It won't have an effect at all. |
Insulating floor joists?
"patrick" wrote in message oups.com... Thanks for all the great replies. So....what about insulating the floor joists for a room that has a full basement (exposed) ceiling under it. This room is above the room that houses the furnace for the house. Would this be any benefit? I don't see that it would. I have seen though, a few houses that did have that insulated. Since the room above is considered "habitable" and the room below is not, it seems that an interpretation of the code is that it should be insulated. I don't know enough about the code to substantiate that. I only know that a neighbor had to insulate when he was selling his house (Farmer's Home Somethingorother mortgage required it) and another had it put in when the house was built a few years ago. |
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