Garage Door - How much insulation

[pharper]

I'll be moving into a new place soon and the garage is not insulated. I'll be insulating the walls with R13 while adding power, windows, etc. I figured I'd be wise to replace the door with an insulated one. I live in the southeast and I'm just not sure how important insulation is. I've been looking the the Clopay doors at Home Depot and they vary quite a bit. I want to condition the space with a mini-split later. Is it worth the extra cost to go from something around R6 to something with R13 or even R18?

 

[rburke65]

I'm in NE Ohio and I went with the R-18 Clopay but I'm in a colder area. And.... I priced Coplay at Home Depot and went down the street to a local garage door installer since they sold Clopay doors to get their price. Wow.....big difference in price. The private company said, " from where do you think Home Depot gets their doors? From us....they are the middle man". So.....call n check around. You will be able to afford the R-18. They are ice doors. Good luck.

 

[BillK]

p,
I would probably be more concerned with how airtight the door will be when closed. I replaced my original leaky wood door with a middle of the road insulated steel door a few years back and the fact that it is pretty much sealed up tight when closed made all the difference in the world. I am sure the insulation helps but it is only the thickness of the door, probably R-6 or so ? I can heat my 22x23 attached garage with a 5000W electric heater no matter how cold it gets here in Maryland.

 

[xyster101]

You only buy insulation one. You pay for heat every year. Spend the extra money on insulation. No one ever says"gosh I put too much insulation in my walls! "

Posted by my Galaxy S3. Sorry for typos

 

[NUTTSGT]

Depending on what type of door that you have, you might be able to attach some insulation to the one you have.

 

[sledneck32!]

Funny i was just reading about this the other day.... Did you know that a r12 door is only about 5% more efficient than a r6? Wierd isnt it? Reason being... Imagine a big gaping hole with the wind blowing through; that would be the equivalent r0. Now put an r6 door in there. Voila! You have stopped 90% or more of your heat loss. Now put the insulation twice as thick so your at r12. How much more effective is it? Answer, roughly 5%.

Cant remember the website.... It was a garage door website i found on google while searching "garage door efficiency".

That being said, i just ordered r13 polyurethane doors tonight for the shop i am working on.

Sent from my LG-H811 using Tapatalk

 

[pharper]

I'm in NE Ohio and I went with the R-18 Clopay but I'm in a colder area. And.... I priced Coplay at Home Depot and went down the street to a local garage door installer since they sold Clopay doors to get their price. Wow.....big difference in price. The private company said, " from where do you think Home Depot gets their doors? From us....they are the middle man". So.....call n check around. You will be able to afford the R-18. They are ice doors. Good luck.

Really? That's good to hear. How much did you save? Home Depot is currently having a 15% off sale. I'll definitely have to shop around.

 

[pharper]

Funny i was just reading about this the other day.... Did you know that a r12 door is only about 5% more efficient than a r6? Wierd isnt it? Reason being... Imagine a big gaping hole with the wind blowing through; that would be the equivalent r0. Now put an r6 door in there. Voila! You have stopped 90% or more of your heat loss. Now put the insulation twice as thick so your at r12. How much more effective is it? Answer, roughly 5%.

Cant remember the website.... It was a garage door website i found on google while searching "garage door efficiency".

That being said, i just ordered r13 polyurethane doors tonight for the shop i am working on.

Sent from my LG-H811 using Tapatalk

You could also look at it from a different angle. R12 would be stopping 100% more air than R6