Garage door has R10, worth adding more?
- Thread starter ooHi-Fioo
- Start date
mike93lx
ALLIANCE MEMBER
Insulation questions without location info and how it's currently performing won't go well.
Info on the rest of the structure, exposure, and hvac are all helpful too
Info on the rest of the structure, exposure, and hvac are all helpful too
Good point! Minnesota, so -40 to 110 degrees. North facing garage opening, 20x42 (tandem). Infloor heating but only in the back 20x20 portion. It takes a long time to heat up but it's infloor and only 1/2 the garage. The ceiling is a mix of R40 and r19. I'm going to address the r19 part but it will require a false floor built on top of what's up there (storage trusses)
mike93lx
ALLIANCE MEMBER
How are the walls insulated? How is the air sealing? Dealing with those, if they need it, will do a lot more than adding insulation to the door. R10 is already pretty good and it must be a thick door.
Getting the attic better insulated will make a much bigger difference than anything you could do to the door. That's where I would focus my energy. R19 is completely inadequate and r40 isn't terrible, but it's not enough
Getting the attic better insulated will make a much bigger difference than anything you could do to the door. That's where I would focus my energy. R19 is completely inadequate and r40 isn't terrible, but it's not enough
The attic is first on the list. I'm making a parts list and taking a few days off to do it all, just wanted to make sure I have all the parts to utilize my time. I already have attic insulation and new door seals figured out. Walls are 2x6 so r19 there.
Doesn't sound like garage door is worth focusing on for what I have.
Doesn't sound like garage door is worth focusing on for what I have.
mike93lx
ALLIANCE MEMBER
A radiant barrier would likely have little to no effect on a northern exposure anyway.
Are the door hinges tight? Especially when they get hit with wind, the door can bow in and let air through gaps. Hinges with springs can help hold it lore solid if that's an issue
Are the door hinges tight? Especially when they get hit with wind, the door can bow in and let air through gaps. Hinges with springs can help hold it lore solid if that's an issue
Denwood
Well-known member
I'd have a good look at the door seals too. We're in climate zone 7A, design temp is -35 C. Our 16x32 loading bay with radiant heat could not keep up with heat loss at -20 C (-4 F). I have data from the radiant system in this thread after the seals on just one overhead door were replaced:
www.garagejournal.com
Garage door seals - $$$ flying from your wallet?
This is a repost of one of my thread posts, however I figure it's worth some discussion here in the heating/cooling area. I learned something this week about the value of garage door seals. The space in question is at my commercial site, but the garage door there is typical (albeit) larger to...
www.garagejournal.com