This garage is located in the north cascades 2000 elevation in washington state with a typical yearly temperature range of 0f 105f.
How to insulate garage ceiling vapor barrier.
I ve read the articles here and on other sites and it seems like i can t get a final decision.
Install as directed typically cutting to fit and using a staple gun to attach the vapor barrier to the studs.
My main goal is to keep it from getting much below freezing during the winter.
You can forego the plastic and use a vapor retarder kraft faced insulation or latex ceiling paint in all other climates except hot humid or hot dry climates.
Insulating an attached garage has some special considerations that you must address differently then a unattached garage.
Once mold starts to grow you ll have to rip out everything and start over again.
I m considering insulating and drywalling my garage which already has insulated garage doors.
How to insulate a garage ceiling.
When the house was built 10 years ago the walls attached to the house were done and the ceiling was drywalled fire code.
I want to insulate the ceiling in my garage.
Not every wall does.
I m so confused about vapor barriers.
I live in mn and am insulating my garage ceiling in an attached garage.
If you re using old uninsulated doors pick up a retrofit kit that add insulating panels.
A vapor retarder is a material used to prevent water vapor from diffusing into the wall ceiling or floor during the cold winter.
On the one hand i ve read about how air leakage is the main culprit of transporting moisture so i plan to air seal as best as i can with spray foam and caulk.
After the insulation is in place you will want to add a vapor retarder sometimes called a vapor barrier if you need one.
Without it mold and bacteria can form throughout the garage including inside of the insulation.
Plastic vapor barriers should only be installed in vented attics in climates with more than 8 000 heating degree days.
If you re adding new garage doors be sure to install insulated options.