Insulating Garage Roof Ceiling

How to insulate a garage step by step.

Insulating garage roof ceiling.

This will allow you to add the needed insulation. Here s my step by step process for how i added insulation to my garage. Make sure you have enough ventilation on your roof as well. If your garage has drywall remove it.

Consider all aspects of insulating your garage not just the walls but also the garage doors and the ceiling particularly if you plan to add a heating and or cooling system. It is important to insulate any walls that separate the garage from air conditioned rooms in the house. This will make the garage space more appealing to work in and it will allow you to store a greater variety of items that may currently be cluttering up your house. If you didn t do that before you put the frame up you can still do it now although it s going to be harder since the frame is in the way.

How to insulate a garage wall in four easy steps step 1. Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away. Consider renting a residential. If you have a flat garage roof and an attic above you can install the garage insulation from below using a standard ladder.

To get more insulation in the garage install a ceiling and provide access to the space between the ceiling and the roof. Look for gaps and cracks in the wall. Clear the walls for the insulation. For example while an epoxy coating will add a protective layer to the floor it won t necessarily add insulating values.

I wrote a tutorial on how to waterproof and seal your garage walls using drylok. In reality insulation merely slows the transfer of heat through the insulated barrier wall ceiling floor etc. And don t forget to take flooring into account. However if you have a cathedral style garage roof you will need a scaffolding to get into the upper areas of the roof.

For the same reason insulation shouldn t touch the roof s underside. If you are insulating the garage ceiling not only by the truss level but also up by the roofline then you must leave at least 1 1 2 to two inches of air between the fiberglass and the underside. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. If the garage is open to the rafters the boards that support the roof use r 38 insulation between the rafters at the roof if they are 10 inches deep.

Last chance to waterproof your wall. 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. It isn t important to insulate the ceiling between the attic and the garage because those areas are not affected by a home s heating and cooling system.