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B200Driver
Joined: 29 May 2006
Posts: 26
Location: Douglasville, GA
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 Posted: Mon May 29, 2006 1:10 pm Post subject: Basement garage fume barrier? Room ventalation? |
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Hey Y'all from the sunny south. This is my first post here. Here is my first issue. Right now I'm having a house built. It is a decent size ranch on a full unfinished basement. Being the do-it-yourselfer that I am, I have specified a 9' Boat door in the basement. I plan to finish the basement as time and money allows. Here is the dilemma. I will use my basement shop area (17'x 33')  as a motorcycle workshop. That said, there will be plenty of smelly substances in that area. I plan to use fire board on the walls and cieling, but I need to know if anyone has any ideas to keep fumes out of the rest of the house. To further compound matters, I will be using Icynene brand foam insulation in the house. The foam takes air infiltration to almost zero, so if I do get fumes in the living portion, they will take an extremely long time to escape........ I was thnking a bathroom vent fan low in the wall for starters. The shop area will initially be in the envelope of conditioned space, but I think I will seal it off, and obviously not run any HVAC from the main system. Any other ideas? As our membership grows, I'm sure someone else here will have had to address this issue.... |
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webmaster
Site Admin
Joined: 06 Jun 2005
Posts: 117
Location: Appleton, WI
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| Posted: Tue May 30, 2006 1:30 am Post subject: Re: Basement garage fume barrier? |
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| B200Driver wrote: | | Hey Y'all from the sunny south. This is my first post here. Here is my first issue. Right now I'm having a house built. It is a decent size ranch on a full unfinished basement. Being the do-it-yourselfer that I am, I have specified a 9' Boat door in the basement. I plan to finish the basement as time and money allows. Here is the dilemma. I will use my basement shop area (17'x 33') as a motorcycle workshop. That said, there will be plenty of smelly substances in that area. I plan to use fire board on the walls and cieling, but I need to know if anyone has any ideas to keep fumes out of the rest of the house. To further compound matters, I will be using Icynene brand foam insulation in the house. The foam takes air infiltration to almost zero, so if I do get fumes in the living portion, they will take an extremely long time to escape........ I was thnking a bathroom vent fan low in the wall for starters. The shop area will initially be in the envelope of conditioned space, but I think I will seal it off, and obviously not run any HVAC from the main system. Any other ideas? As our membership grows, I'm sure someone else here will have had to address this issue.... |
I would get a hold of a used furnace blower, you might be able to buy it from a HVAC shop that just removed it from a house during one of their jobs. Then I would fabricate out of wood or sheet metal, a box that goes around it leaving two sides open, the intake and the exhaust. The intake should be able to house a filter, in case your doing dusty work, an the exhaust should be built to exhaust outside. This depends on how your foundation walls are. Don't be afraid to even cut through a poured or block foundation, but take the right approach, and do that as the only alternative.
Of course you know what a furnace blower is going to do on a 17x33 room? Create a massive negative differential pressure. So to alleviate this, I would duct in fresh air from the rest of the house through a normal duct with a electric butterfly/louver damper. Wire the damper to the switch for the exhaust blower. (though you will have to use a transformer cause I think the butterfly motor is 24V)
Just some ideas |
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sf340dvr
Joined: 05 Jul 2005
Posts: 57
Location: Appleton, WI
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| Posted: Tue May 30, 2006 2:58 pm Post subject: Mold and Mildew |
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I'm sure you are aware of the problems of mold and mildew in the south, but I wanted to remind you that if a room like this is sealed up, and there is not daily exchange of dry fresh air, you could build up toxic molds.
With that in mind, it would depend on how often the room is used, but webmaster's exhaust system would do that. |
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B200Driver
Joined: 29 May 2006
Posts: 26
Location: Douglasville, GA
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| Posted: Tue May 30, 2006 3:33 pm Post subject: |
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| I did think about the mold issue. Maybe I'll check into a micro A/C unit like they use for wine cellars. I just have to make sure that it'll exhaust the smelly air, and bring in some fresh. The thing I don't want is to have high pressure in this room, as it will force the fumes (which are heavy and sit low to the ground) under the door, and into the living area. |
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