Garage workshop insulation

[klindstedt]

We are converting one bay of our three car garage to a workshop for my wife's embroidery and heat printing business. Plan to install a mini split to heat and cool the space (pretty small, about 180 sq. Ft ). The existing exterior wall is 2x6 construction and well insulated with a brick veneer outside. The garage has two small supply vents from the house that keeps the garage relatively comfortable. Lowest I've seen in the coldest days of winter is about 40 and the warmest days of summer we might see 80's. I plan to insulate our new interior walls of the workshop. Question - faced or unfaced insulation? Leaning towards unfaced... Thanks!

 

[rayra]

If you are covering both sides of the partition wall, that's great and a small cost savings. As long as your framing is standard / insulation bats are sized right, it won't be any trouble to stuff in there.
What are you doing for ceiling insulation. That's my biggest problem in my north facing Vegas 3-car. Big tiled hip roof with nothing but a couple soffit vents. I have big plans for the winter to do several ventilation and insulation mods. I"m working out there now and the heat is brutal.
I've also turned one third of my garage into my workshop space, but it is not partitioned / sealed off. At best it will get a lightweight curtain wall for sawdust control.

 

[jmiller_2308]

We are converting one bay of our three car garage to a workshop for my wife's embroidery and heat printing business. Plan to install a mini split to heat and cool the space (pretty small, about 180 sq. Ft ). The existing exterior wall is 2x6 construction and well insulated with a brick veneer outside. The garage has two small supply vents from the house that keeps the garage relatively comfortable. Lowest I've seen in the coldest days of winter is about 40 and the warmest days of summer we might see 80's. I plan to insulate our new interior walls of the workshop. Question - faced or unfaced insulation? Leaning towards unfaced... Thanks!

Umm.... are you saying there is shared air between the house and garage? If so, it is likely not legit and could represent both a fire and health issue.

If you want to add hvac to the workshop then it might be a good time to isolate the house from the garage and put in enough hvac to address both the workshop and the garage.

 

[klindstedt]

Umm.... are you saying there is shared air between the house and garage? If so, it is likely not legit and could represent both a fire and health issue.

If you want to add hvac to the workshop then it might be a good time to isolate the house from the garage and put in enough hvac to address both the workshop and the garage.

No returned air from the garage. The well pump tank and water softener are located in the garage and these registers spill out behind their location.

 

[klindstedt]

What are you doing for ceiling insulation. That's my biggest problem in my north facing Vegas 3-car. Big tiled hip roof with nothing but a couple soffit vents. I have big plans for the winter to do several ventilation and insulation mods. I"m working out there now and the heat is brutal.

I'm fortunate in that I have R38 already in the attic over the garage. Last time we re-roofed the house we installed ridge vent, so plenty of venting.

 

[pattenp]

Having open duct that goes from living space to a garage is a fire and safety code violation regardless of not having a return. Was this a homeowner modification? As to the new wall just use faced batt with face towards conditioned space.