Looking at finishing out open attic space over a garage. The house was built with this in mind, so structurally there’s no problem. The tji floor joists are exposed, as are the roof rafters, so access is a breeze. Location is South Carolina. What would you put in the floor (garage ceiling) for insulation? I assume kraft faced fiberglass for the underside of the roof would be a second choice, rigid foam being the preference.
Whenever you are asked if you can do a job, tell’em “Certainly, I can!” Then get busy and find out how to do it. T. Roosevelt
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That's gonna be one heck of a commute for you from home to the job every day, no? lol
Bob
I'm doing the work for free, but I get mileage ...
Actually, I was hoping nobody picked up on that little detail. Client is a relative, a doctor, nice guy. Had the house built about 4 yrs ago, and it didn't come out the way he wanted (he had trouble understanding the plans), plus now he has some extra cash. So he has asked me to come spend a couple of weeks and make changes and upgrades.
Whenever you are asked if you can do a job, tell'em "Certainly, I can!" Then get busy and find out how to do it. T. Roosevelt
Ed, you should go with the fiberglass and seriously seal the vapor barrier and all gaps with acoustical caulking to prevent any vehicle exhaust from gaining access to the living quarters. Adding some weatherstrip to the exterior of the garage door can stop alot of wind penetration as well.
Wouldn't it be an advantage to have air leaks in the garage to help dissipate any exhaust fumes? Here is San Antonio we are required to have two vents in the garage side wall to promote air circulation. Also two vents in the water heater closet if it is gas.
Whenever you are asked if you can do a job, tell'em "Certainly, I can!" Then get busy and find out how to do it. T. Roosevelt
The garage door is assumed to be open when the car is running, which should dissipate any exhaust. When closed, the weatherstrip can stop alot of wind from entering the huge gaps around a garage door which might pressurize the garage interior instead of venting it. To say another way....allow more air to enter than can reasonably exit through a vent.