Choosing the Right Insulation Using R-Values
- R-Value 0-6
- Ideal for detached garages. Since they are not attached to the home, you do not need to worry about your electric bill through heating or cooling and therefore do not need insulation with a high R-value.
- R-Value 7-9
- Ideal for your standard attached garage. An R-value between 7 and 9 is the perfect balance between insulation cost and electricity cost caused from heat loss.
- R-Value 10-13
- Ideal for heated garages. Since the goal of a heated garage is to preserve as much heat as possible, an insulation material with a high R-value is needed for a situation like this.
- R-Value 14+
- Ideal for garages with rooms above them. Since you want the climate of the room to be comfortable year round, maximizing the insulation of the garage door is key here.
What Can You Insulate Your Garage Door With?
Garage Insulation Material
3.5 (polyurethane), 8 (polyisocyanurate), 5 (polystyrene)
Affordable, best at absorbing sound
7 (closed cell spray), 4 (open cell spray)
Airtight, mold and insect-resistant
Expensive, requires expertise to install
3 (batts), 4 (loose-fill), 5 (rigid fibrous)
Inexpensive, easy to handle
Vulnerable to moisture, reducing effectiveness
3.5 (loose-fill), 4 (dense-pack)
Expensive, requires drywall
Can You Paint Your Garage Door Insulation?
1. Buy and Install a Garage Door Insulation Kit.
2. Skip Out on the Insulation Kit and Do-It-Yourself
3. Weatherstrip Your Garage Door for Extra Insulation
Bonus: Install a Thermacore Garage Door.
Improve Your Garage Door Insulation with Overhead Door Company of Wilmington