Insulating question ?

[PILOON]

Whichever you select, I strongly suggest a good vapor barrier on the innermost side otherwise humidity will soon frost up in the wool insulation and reduce its effectiveness.

Also be sure to provide good ventilation in the attic as your roof will sweat like crazy

Another trick I have used is to toss in a sachet of rodent poison between studs as they soon find their way into your walls.
I varied the brands/types from stud to stud just in case they got picky or too used to a specific brands. Cheap insurance IMHO.

I also agree with 4ft being too much span, either go metal on 4ft or simply add furring strips at 16" centers--with nail guns today that is a cheap and fast solution.
Don't forget vapor barrier!
Then use batts or whatever insulation.

If northern Ontario, like north of TO go for R-32 or at least R-28, (in a house you'd want R 40) it will pay off in over a couple of years. Walls, Min r-16 but again r-20

With insulation the labor is all the same, so the extra is a solid investement.

 

[irvingj]

My garage was standard 2 x 4 stud construction, but I did much the same... inexpensive 7/16" OSB on walls & ceiling, after adding batts of insulation. One thing I did which really helped was to paint surface of OSB white before hanging stuff on it-- makes lighting much more effective.

George2615- is that a '55 or '56? Used to drive one of those old tanks just like that-- even the same color! The Olds I used was a '55. "Rocket" V8!

 

[George2615]

George, isn't it about time to buy a new car?

No, these two are paid for and easy to work on. No computers. That's why I built the barn, needed a place to store them in winter.

George2615- is that a '55 or '56? Used to drive one of those old tanks just like that-- even the same color! The Olds I used was a '55. "Rocket" V8!

Its a 55 Super 88, all original and I just repainted it last summer in original colors. The other one is a 29 Durant street rod.

 

[LRTX1]

Blown in cellulose is a reasonably priced, fast, easy way to go. DIY, it is by far the cheapest.

I priced insulation last summer at Lowes and Home Depot, both blown in and rolled to do my attic. Then I called a local insulation company. They came and blew more in my attic than I planned on buying for cheaper than I could have done it myself.