When it comes to choosing materials you can use the same types of insulation used on the rest of the house but some are better than others depending on whether the garage is finished or not.
What type of insulation to use in garage walls.
This type of insulation is available in different forms.
However for your garage this type of insulation may prove somewhat difficult to use.
The higher the r value the better the thermal performance of the insulation.
For example while an epoxy coating will add a protective layer to the floor it won t necessarily add insulating.
You can achieve better thermal performance in your attic by adding an.
If you already have drywall installed around your garage but don t have it insulated then blown in insulation may be the answer.
Garage door insulation kit.
Insulation is rated by its r value.
Another insulation option is spray foam also called insulating foam sealant.
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.
Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold.
If the walls and ceiling are closed in consider using loose fill insulation as this form of insulation uses a machine to get the insulation where it needs to go through a hole in the sheetrock.
A contractor will come and open up a hole in the wall pump in a cellulose insulating material and then patch up the opening.
If you have gaps and cracks in your wall you ll need to fill them in to make sure outside temperatures don t creep inside.
Check garage walls and ceilings that are adjacent to conditioned spaces.
Turn off the electricity then remove an electrical outlet cover for a view of exterior insulation.
R value measures how resistant types of insulation are to heat flow.
Check behind knee walls which are walls between living spaces and the garage or attic.
R values vary based on the type thickness and density of the insulation material.
In most wall applications you will use r 13 or r 15 kraft faced fiberglass insulation rolls for these two by four stud walls.
Achieving greater r values in attics.
Use the same insulation to insulate the garage as that used for the home s exterior walls.
Exterior walls and floors.
Use this guide on the best garage door insulation kits to find one that works for you.
Insulating a garage makes sense if you re planning to heat the space.
And don t forget to take flooring into account.
You don t have to use a kit for the garage door but we recommend it.
While rated differently these two types of insulation are close enough in thickness that they can both fit into modern two by four wall systems.