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#1
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Insulate Garage without Drywall?
Hi;
I live in Canada where as you can probably imagine it can get extremely cold in winter. I have an attached garage (no rooms above it) and the side of the garage that's attached to the house is finished, however the two sides that aren't attached are not. I'm thinking of adding insulation to it (R12) and a vapour barrier, but not putting up drywall. Is that safe? Do I have to add drywall as well or am I ok with just the insulation and vapour barrier over it? Thanks in advance. |
#2
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Insulate Garage without Drywall?
Bob wrote:
Hi; I live in Canada where as you can probably imagine it can get extremely cold in winter. I have an attached garage (no rooms above it) and the side of the garage that's attached to the house is finished, however the two sides that aren't attached are not. I'm thinking of adding insulation to it (R12) and a vapour barrier, but not putting up drywall. Is that safe? Do I have to add drywall as well or am I ok with just the insulation and vapour barrier over it? Thanks in advance. Using an insulation and vapor barrier that does not require coverage is OK, but not all possibilities pass that test. I covered mine with peg board. While that does not provide the protection that might be needed for some materials, it does provide a lot of storage space. -- Joseph Meehan Dia duit |
#3
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Insulate Garage without Drywall?
If its a garage, you should put fire rated drywall on. In case of a
fire, all that insulation and vapor barrier will catch on fire quickly. Drywall is cheap enough and easy to put on. You don't even have to paint it if you don't feel like. |
#4
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Insulate Garage without Drywall?
You don't even have to tape the seams for that matter either. Many
people do it that way. |
#5
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Insulate Garage without Drywall?
Mikepier wrote:
If its a garage, you should put fire rated drywall on. In case of a fire, all that insulation and vapor barrier will catch on fire quickly. Drywall is cheap enough and easy to put on. You don't even have to paint it if you don't feel like. Kind of depends on the insulation. I have yet to see fiberglass insulation catch fire. The problem with a vapor barrier is more likely to be the poisonous gases it may give off if it burns, but then then in a garage, if you have a fire, I doubt if that is going to be your concern. Few if any local codes require fire brakes on exterior walls of a garage. -- Joseph Meehan Dia duit |
#6
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Insulate Garage without Drywall?
Joseph Meehan wrote: Bob wrote: Hi; I live in Canada where as you can probably imagine it can get extremely cold in winter. I have an attached garage (no rooms above it) and the side of the garage that's attached to the house is finished, however the two sides that aren't attached are not. I'm thinking of adding insulation to it (R12) and a vapour barrier, but not putting up drywall. Is that safe? Do I have to add drywall as well or am I ok with just the insulation and vapour barrier over it? Thanks in advance. Using an insulation and vapor barrier that does not require coverage is OK, but not all possibilities pass that test. I covered mine with peg board. While that does not provide the protection that might be needed for some materials, it does provide a lot of storage space. -- Joseph Meehan Dia duit I'm with you there. An additional reason to cover it with something is looks. My BIL in B.C. did his with just insulation+visqueen (clear plastic). Nice and warm but it looked very red-neckish. He covered it after a few years. The storage space bit alone is worth whatever cost the covering would be. Harry K |
#7
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Insulate Garage without Drywall?
I'd go with either covering it with drywall or not installing
insulation at all. IMO, leaving it uncovered, it will be too easy to damage. I'd also consider if the whole thing is worth it from an energy standpoint. Apparently there is no living space above the unheated garage and the garage only shares one wall with the house? You can't insulate the overhead doors beyond what they already are, which likely isn't a lot. So, I doubt doing the other walls is going to gain you very much. |
#8
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Insulate Garage without Drywall?
wrote:
...I'd also consider if the whole thing is worth it from an energy standpoint. Apparently there is no living space above the unheated garage and the garage only shares one wall with the house? You can't insulate the overhead doors beyond what they already are, which likely isn't a lot. So, I doubt doing the other walls is going to gain you very much. I use a garage as a shop. I insulated the walls and ceiling and put 4-year UV greenhouse polyethylene film over the outside of the south garage door, which makes for great light and heat when the door is open. I'd like it to open and close automatically to store solar heat in the slab floor, except when nobody's home. Garage door openers are fairly inexpensive, and safe and powerful and versatile (some people use them to haul boats out of the water :-), and it's easy to add more foamboard insulation to the doors. It's odd we don't see more of them used for automatic "movable insulation" in solar heating systems. I've only heard of one application like that, for a homeless shelter in Washington state. The film is attached to the frame with spring wire extrusions and taped to a PVC pipe so it can roll up for storage under the eave in summertime. Nick |
#9
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Insulate Garage without Drywall?
On 2005/10/22 7:09 AM, "Bob" wrote:
I live in Canada where as you can probably imagine it can get extremely cold in winter. I have an attached garage (no rooms above it) and the side of the garage that's attached to the house is finished, however the two sides that aren't attached are not. I'm thinking of adding insulation to it (R12) and a vapour barrier, but not putting up drywall. Is that safe? Do I have to add drywall as well or am I ok with just the insulation and vapour barrier over it? What kind of insulation are you thinking about. Some kinds should be covered with fire resistant material, others need to be contained to protect the insulation itself. If it were me, I would use the standard fiberglass insulation with craft paper on one side and then cover the walls with some quick and easy surface material such as cheap paneling or masonite. |
#10
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Insulate Garage without Drywall?
:"I've got a fully insulated (but not heated) garage, and I think it's
definitely worth it. It gets to -30C around here in the middle of winter, and the coldest the garage drops to is -9C. " The real question here is what would the temperature inside the garage be if there were no insulation. It might not be much different with or without the insulation. When you have one side already insulated and shared with the house, one wall mostly doors which we agree generally don't have much insulation, you're left with two walls that you can work with. I suppose one benefit could be that insulation would reduce drafts from the open walls, especially if drywalled over and that might even be the biggest factor. |
#11
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Insulate Garage without Drywall?
wrote in message You can't insulate the overhead doors beyond what they already are, which likely isn't a lot. Sure you can. It adheres to the door. |
#12
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Insulate Garage without Drywall?
I live in Winnipeg and have my attached garage insulated - door, walls &
ceiling. I definately enjoy having insulated it but here are a couple of other thoughts on insulating garages. * The retained heat from a warm engine keeps the garage warmer than the outside. In winter this leads to snow melting off the car and dripping onto the floor. That results in puddles of salt laden water which don't always run out the garage door (unless your floor is well sloped to the outside). My garage floor was initially sloped to 2" over 20 feet. Some setting must have occurred as I had water accumulating along the sides and in the outside corners of the garage - so this year I added a skim coat of 1/4" concrete along the garage floor sides with the theory it will prevent the water from collecting on the sides/corners (we will see how that works out very soon). * The warmer temperatures facilitate rust - so you might want to look into a rust treatment for your vehicle. I use Rust Check every year. * You may need a floor squeegee to sweep the excess water out every so often. wrote in message ... On Sat, 22 Oct 2005 10:48:53 -0400, "Robert L. Haar" wrote: On 2005/10/22 7:09 AM, "Bob" wrote: I live in Canada where as you can probably imagine it can get extremely cold in winter. I have an attached garage (no rooms above it) and the side of the garage that's attached to the house is finished, however the two sides that aren't attached are not. I'm thinking of adding insulation to it (R12) and a vapour barrier, but not putting up drywall. Is that safe? Do I have to add drywall as well or am I ok with just the insulation and vapour barrier over it? What kind of insulation are you thinking about. Some kinds should be covered with fire resistant material, others need to be contained to protect the insulation itself. If it were me, I would use the standard fiberglass insulation with craft paper on one side and then cover the walls with some quick and easy surface material such as cheap paneling or masonite. I'd do the same. Pegboard is preferred and I have seen pegboard that looks lile panelling (woodgrain). I want the garage walls to be useful, not easily damaged like drywall. If you do use drywall and the garage is on a poured slab, dont waste your time taping the joints, they will only crack. Slabs move. They do sell drywall with built in wallpaper made to be installed without taping the joints and looks nice. The only reason I can see drywall as an advantage is fire protection. Of course you could put pegboard over it, but would have to fir it out, and double the cost. |
#13
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Insulate Garage without Drywall?
Bob wrote:
Hi; I live in Canada where as you can probably imagine it can get extremely cold in winter. I have an attached garage (no rooms above it) and the side of the garage that's attached to the house is finished, however the two sides that aren't attached are not. I'm thinking of adding insulation to it (R12) and a vapour barrier, but not putting up drywall. Is that safe? Do I have to add drywall as well or am I ok with just the insulation and vapour barrier over it? Thanks in advance. Done all the time when people are short of funds. Safe? you expect the fiberglass to burn? But why not put up drywall which will protect the vapor barrier from being torn. It's not that expensive, and you don't have to tape if you don't want to. |
#14
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Insulate Garage without Drywall?
Mikepier wrote:
If its a garage, you should put fire rated drywall on. In case of a fire, all that insulation and vapor barrier will catch on fire quickly. Drywall is cheap enough and easy to put on. You don't even have to paint it if you don't feel like. If one uses fiberglass batts, it ain't going to catch on fire, and the fiberglass will protect the studs and outer walls from fire. But you have a point, there really isn't much reason to not put up drywall, unless you really have run out of money. |
#15
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Insulate Garage without Drywall?
Actually, the reason I was trying to avoid the drywall was simply that
I have no experience in putting it up. I figured the insulation couldn't be too hard, but the drywall I could screw up. From all the threads, I'm still not sure if there's a specific thermal or security reason to put up the drywall... Everyone seems to agree that I should, which I probably will, but is there a building code rule of some sort around it or does it make a difference in terms of temperature inside the garage with/without the drywall? |
#16
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Insulate Garage without Drywall?
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#17
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Insulate Garage without Drywall?
Bob wrote:
Actually, the reason I was trying to avoid the drywall was simply that I have no experience in putting it up. I figured the insulation couldn't be too hard, but the drywall I could screw up. From all the threads, I'm still not sure if there's a specific thermal or security reason to put up the drywall... Everyone seems to agree that I should, which I probably will, but is there a building code rule of some sort around it or does it make a difference in terms of temperature inside the garage with/without the drywall? The hardest part of putting up drywall is moving the sheet. So you screw up a sheet, you lost $5, or more likely you will be able to use at least half of that sheet elsewhere. Building codes require a specific thickness between the house and the garage. Doubt if any have requirements for an outside wall of an attached garage. |
#18
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Insulate Garage without Drywall?
I'm thinking of adding insulation to it (R12) and a vapour barrier, but
not putting up drywall. ..just the insulation and vapour barrier over it? Thats what I did in our garage in the Vancouver area. Stayed that way one Winter, then I decided that for the minimal cost of sheetrock, I might as well finish the job. Once the rock was up, I added a work bench and several storage cabinets against the wall. R |
#19
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Insulate Garage without Drywall?
According to Bob :
Hi; I live in Canada where as you can probably imagine it can get extremely cold in winter. I have an attached garage (no rooms above it) and the side of the garage that's attached to the house is finished, however the two sides that aren't attached are not. I'm thinking of adding insulation to it (R12) and a vapour barrier, but not putting up drywall. Is that safe? Do I have to add drywall as well or am I ok with just the insulation and vapour barrier over it? I live in Ottawa, and have a detached oversized double garage. It gets pretty cold here. The walls and ceiling were fiberglass and vapor barrier, no drywall. It stayed this way for almost 20 years, half of which was when we owned it. We don't park cars in it (much), it's mostly a work shop (it's heated when I need it). While condensation was occasionally a problem, it went away completely when when we had a floor poured (it was originally bare gravel) and made sure that the attic ventilation worked. Despite what others have suggested, the vapor barrier never got damaged. Until... About five years ago, I finally got around to drywalling the walls. I started with the idea of just taping it, but despite "it's just a garage", it ended up being completely done. By the time I was finished, I was pretty good at it. Ceilings were still vapour barrier and fiberglass. Now the "until": 20+ years of exposure to sunlight coming through the windows embrittled the vapour barrier on the ceiling to the point that one very cold night about 40 square feet of it "shattered" into strips... Managed to patch it (had to drop ceiling lathe to do it), and covered that area with drywall. Still need to do the rest of the ceiling. Drywalling is easy. There's no real reason not to do it. But I have an awful amount of stuff to move before I can finished the ceiling (and the bathroom has been demolished and is higher priority...) -- Chris Lewis, Una confibula non set est It's not just anyone who gets a Starship Cruiser class named after them. |
#20
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Insulate Garage without Drywall?
On Sat, 22 Oct 2005 17:48:58 GMT, "Edwin Pawlowski"
wrote: wrote in message You can't insulate the overhead doors beyond what they already are, which likely isn't a lot. Sure you can. It adheres to the door. =============== My one garage houses 2 "summer" cars....they are stored over the winter...and on the second floor of this garage is my woodshop....which means I have this building heated as I practically live out there in the winter...and I do not use the cars... The 2 regular sized garage doors were a major source of heat loss UNTIL I picked up a couple of "used" hot tub covers for free a few years ago... now I just unfold the hot tub covers and cover the doors on the outside of the garage... Honestly it cut my heating bills big time... cost was about 10 bucks for hardware to hold the covers in place.... and to be honest it really looks pretty good...not tacky lol Bob G. |
#21
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Insulate Garage without Drywall?
According to :
On Sun, 23 Oct 2005 04:25:35 -0000, (Chris Lewis) wrote: Now the "until": 20+ years of exposure to sunlight coming through the windows embrittled the vapour barrier on the ceiling to the point that one very cold night about 40 square feet of it "shattered" into strips... Good God. You're lucky you were not killed. I just can not see how anyone could survive 40 square feet of visqueen falling on them . Just be thankful you did not put duct tape up there too. That surely would have added enough weight to crush an elephant. Of course only Republicans keep elephants in their garage and since I dont know what political party you belong, this statement may not pertain :^) Snicker ;-) I was more worried about the unfaced fiberglass batts clobbering my cranium ;-) But they didn't fall. Actually, it did have a real consequence. Since the vapor barrier was no longer functioning and slightly warmer air rising through the fiberglass hitting the roof sheathing (especially when the heaters were on of course), I had severe ice dams on that section of the eaves and the very beginnings of water staining (precursor to rot) of the roof structure. Once I realized that, replacing the barrier and protecting it against any more UV deterioration became a rather high priority. -- Chris Lewis, Una confibula non set est It's not just anyone who gets a Starship Cruiser class named after them. |
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