If you didn t do that before you put the frame up you can still do it now although it s going to be.
Insulating attached garage roof.
But no state requires this as part of energy efficiency mandates and it.
As apart of the insulating process you ll want to look into weather stripping doors and windows of your garage to truly keep the energy kept indoors and be sure to finish your project by caulking.
The most important issue is that attached garages must have a system in place to keep carbon monoxide co from a running vehicle inside the garage from filtering through the walls and ceiling into the house.
Last chance to waterproof your wall.
When you should insulate the garage if your home s hvac system does extend into the garage then the attic above it should be insulated as it would for any other room of the house.
If your garage is attached to your house you will notice a big difference in your home s temperature as well.
The regulating temperature has positive effects on your cooling and heating costs.
Sealing off gaps around the exterior and interior of your detached garage will truly insulate it to the best of your abilities.
There is a school of that maintains that an unheated garage that is attached to the house may get some benefit from insulating the walls and ceilings of the garage since it theoretically offers an additional thermal buffer between the exterior of the home and the outdoors.
However if you have a cathedral style garage roof you will need a scaffolding to get into the upper areas of the roof.
If you have a flat garage roof and an attic above you can install the garage insulation from below using a standard ladder.
Insulating an attached garage has some special considerations that you must address differently then a unattached garage.
I wrote a tutorial on how to waterproof and seal your garage walls using drylok.
Here s my step by step process for how i added insulation to my garage.
The task of insulating a garage roof is not hard to complete if you follow a few tips and hints.
In general if you re not heating or cooling your garage there is little benefit to insulating the ceiling because there s no costly heated or cooled air to keep in.