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Re: Garage/Shop build
Posted: Mon Aug 10, 2020 7:50 am
by Bounce
Attached garage? If so, I had the HVAC guy add a couple of vents in the garage. I can open them the night before a planned project and the garage is at the same temp as the rest of the house.
Yes. Insulation is critical and you can get kits for the overhead door.
Re: Garage/Shop build
Posted: Mon Aug 10, 2020 8:41 am
by natehawk750
Bounce wrote: ↑Mon Aug 10, 2020 7:50 am
Attached garage? If so, I had the HVAC guy add a couple of vents in the garage. I can open them the night before a planned project and the garage is at the same temp as the rest of the house.
Yes. Insulation is critical and you can get kits for the overhead door.
The Garage is attatched although there is very little to no access to ad ducting at this point. After talking and debating with the ac and insulation guys about cross flow and all that crap i went with fully foam insulting all 4 walls and ceiling , the garage door is fully insulated with the highest rated insulatin at 2.5 inches thick and im going to eventually add a window unit.... that came out to being most cost effective and if the window unit craps out i can have it replaced in an hour or so. That was my thinking along the way anyway.
Re: Garage/Shop build
Posted: Mon Aug 10, 2020 9:05 am
by raYzerman
Window AC likely best way to go in that situation. I'd do a ceiling fan also just fer fun, pulling up not down.
Re: Garage/Shop build
Posted: Tue Aug 11, 2020 7:58 am
by Bounce
I'm with you on the insulation. We had the garage finished as is typical around here. Being attached means only 1 wall, the ceiling over the garage, and the overhead door weren't insulated. After the AC replacement that prevcipitated the additional ducts, I used the last of the sheet insulation from the shop build and laid them in the gaps between the joists. Later, on an insulation binge, I got additional insulation blown in throughout; including over the sheet insulation. Then the door insulation (also thick like yours).
On it's own, it's much slower to cycle through hot and cold but with our summers being 4 months (or more) of 90º+ days (usually a month of 100º+), there's no stopping it getting hot without AC of some kind.
Which beings up my recent issue (portable AC out in the shop). Got a Whynter ARC-14SH 14,000 BTU. It just failed but is within a week of the 1 year warranty, so I was able to stop the clock and get the warranty process started. Did they forget to mention that there are no authorized service centers and that shipping both ways is only for the first 2 months of the 1 year warranty. After that YOU pay shipping there (heavy and large so costly), the fix or replace and ship back on their dime... To/from California.
Oh yeah, it won't fit in my trunk or in the back seat (even folded down) so I had to rent a PU from u-haul so add that $40 for 30 minutes to the cost of the warranty.
Re: Garage/Shop build
Posted: Tue Aug 11, 2020 8:31 am
by Hppants
I would have liked to know what the temp/humidity was in Nate's shop Saturday at noon. Outside, it was at least 93 def. F and 60% humidity. If I was forced to guess, with the garage door closed for 15 minutes, I'd say it was 77-ish and probably 45-ish% humidity? With no AC, that was really impressive. With one 10,000 BTW window unit, that 22 foot garage would be really comfortable.
Re: Garage/Shop build
Posted: Tue Aug 11, 2020 8:43 am
by natehawk750
I have an old thermometer in there and I've never seen it over 80°F with the door closed. Now it is a very old thermometer that was in my grandfathers work shop so who knows how accurate it is.
Re: Garage/Shop build
Posted: Tue Aug 11, 2020 10:57 am
by ionbeam
natehawk750 wrote: ↑Tue Aug 11, 2020 8:43 am
I have an old thermometer in there...that was in my grandfathers work shop so who knows how accurate it is.
I doubt the mercury has deteriorated over time or changed response to temperature

Perhaps the glass tube may have slipped down a bit when compared to the temperature scale. How does it compare to the readout on your FJR?
Re: Garage/Shop build
Posted: Tue Aug 11, 2020 8:40 pm
by HotRodZilla
Bounce wrote: ↑Tue Aug 11, 2020 7:58 am
I'm with you on the insulation. We had the garage finished as is typical around here. Being attached means only 1 wall, the ceiling over the garage, and the overhead door weren't insulated. After the AC replacement that prevcipitated the additional ducts, I used the last of the sheet insulation from the shop build and laid them in the gaps between the joists. Later, on an insulation binge, I got additional insulation blown in throughout; including over the sheet insulation. Then the door insulation (also thick like yours).
On it's own, it's much slower to cycle through hot and cold but with our summers being 4 months (or more) of 90º+ days (usually a month of 100º+), there's no stopping it getting hot without AC of some kind.
Which beings up my recent issue (portable AC out in the shop). Got a Whynter ARC-14SH 14,000 BTU. It just failed but is within a week of the 1 year warranty, so I was able to stop the clock and get the warranty process started. Did they forget to mention that there are no authorized service centers and that shipping both ways is only for the first 2 months of the 1 year warranty. After that YOU pay shipping there (heavy and large so costly), the fix or replace and ship back on their dime... To/from California.
Oh yeah, it won't fit in my trunk or in the back seat (even folded down) so I had to rent a PU from u-haul so add that $40 for 30 minutes to the cost of the warranty.
Well, that sucks. Or maybe it blows. Of course, maybe it not blowing is whats causing this whole thing to suck. Still, if it's not sucking right then it can't blow, which either blows or sucks, depending on your perspective. What I do know is you need to get rid of one of those, zoom zoom cars and get a frigging truck. Then the suckage for this endeavor wouldn't be so bad, but you might get blown off the road by some idiot in a zoom zoom car, which would suck.
Re: Garage/Shop build
Posted: Tue Aug 11, 2020 9:25 pm
by wheatonFJR
Zilla's not been gettin any for awhile, evidently.
Re: Garage/Shop build
Posted: Tue Aug 11, 2020 9:47 pm
by Pterodactyl
I think he is a Prophet.
Re: Garage/Shop build
Posted: Wed Aug 12, 2020 12:23 am
by HotRodZilla
Pterodactyl wrote: ↑Tue Aug 11, 2020 9:47 pm
I think he is a Prophet.
I'm a poet and Wheaties knows it!!
Re: Garage/Shop build
Posted: Wed Aug 12, 2020 1:57 am
by Abercrombie FJR
Bounce wrote: ↑Mon Aug 10, 2020 7:50 am
Attached garage? If so, I had the HVAC guy add a couple of vents in the garage. I can open them the night before a planned project and the garage is at the same temp as the rest of the house.
Yes. Insulation is critical and you can get kits for the overhead door.
Why the f@$k have I never heard of or thought of this solution.
Re: Garage/Shop build
Posted: Wed Aug 12, 2020 7:39 am
by raYzerman
When I built my shop, there was no way I wasn't having a 2" insulated door. Ceiling is R50+ and walls are R23, 1000 sq/ ft, 10' ceilings. On the hottest days, the temperature inside is around 8-10 degrees cooler than outside and humidity levels are low. A couple of fans and airflow is good. No AC but can easily add a window unit. Propane-fired infrared tube heater (40k BTU) for winter, very efficient, no open flame.
Re: Garage/Shop build
Posted: Wed Aug 12, 2020 8:52 am
by gixxerjasen
Abercrombie FJR wrote: ↑Wed Aug 12, 2020 1:57 am
Bounce wrote: ↑Mon Aug 10, 2020 7:50 am
Attached garage? If so, I had the HVAC guy add a couple of vents in the garage. I can open them the night before a planned project and the garage is at the same temp as the rest of the house.
Yes. Insulation is critical and you can get kits for the overhead door.
Why the f@$k have I never heard of or thought of this solution.
I moved into a house that the one car garage had been turned into an extra bedroom. I ripped out the wall and carpet, put an insulated garage door in and left the HVAC vents going out there. Best thing ever. Working on the bike in a cool environment in the middle of Texas summer was amazing. I wish I had A/C in my current garage.
Re: Garage/Shop build
Posted: Thu Aug 13, 2020 10:22 am
by Bounce
raYzerman wrote: ↑Wed Aug 12, 2020 7:39 am
When I built my shop, there was no way I wasn't having a 2" insulated door. Ceiling is R50+ and walls are R23, 1000 sq/ ft, 10' ceilings. On the hottest days, the temperature inside is around 8-10 degrees cooler than outside and humidity levels are low. A couple of fans and airflow is good. No AC but can easily add a window unit. Propane-fired infrared tube heater (40k BTU) for winter, very efficient, no open flame.
Where I live, you can insulate to infinity (not really for your pundits) and eventually the heat load to the exterior will force the interior up to ambient. In the summer, our lows are often 85-90 degrees some years.
Re: Garage/Shop build
Posted: Thu Aug 13, 2020 1:41 pm
by gixxerjasen
Bounce wrote: ↑Thu Aug 13, 2020 10:22 am
raYzerman wrote: ↑Wed Aug 12, 2020 7:39 am
When I built my shop, there was no way I wasn't having a 2" insulated door. Ceiling is R50+ and walls are R23, 1000 sq/ ft, 10' ceilings. On the hottest days, the temperature inside is around 8-10 degrees cooler than outside and humidity levels are low. A couple of fans and airflow is good. No AC but can easily add a window unit. Propane-fired infrared tube heater (40k BTU) for winter, very efficient, no open flame.
Where I live, you can insulate to infinity (not really for your pundits) and eventually the heat load to the exterior will force the interior up to ambient. In the summer, our lows are often 85-90 degrees some years.
You can tell where a person lives by whether they put in a heater or A/C unit. Ray was pretty specific on the specs of his heater.
