Important Things to Keep in Mind when Insulating your Garage Door for Optimal Energy Efficiency


The majority of homeowners upgrade their doors and windows to improve the energy efficiency of their household. However, a lot of them fail to realize that their garage door can be a source for poor energy conversation.

Although indoor air can escape when the garage door is open and closed, most the energy loss of your home is taking place while the door is closed. To reduce energy loss through this door, think about installing a new insulated door. But you can choose to better secure your insulated garage door to have more energy efficiency and reduce your energy bill. If you are planning to purchase a new garage door, there are some factors and premium garage door parts you need to consider to ensure you get a door that will help in reducing your energy costs.

Benefits of Wood End Blocks

A garage door’s end blocks keep the insulating material in place. Also, they help ensure the hinges are secured to the ends of the door. With weatherstripping or glue joints, a link will develop with the interior and exterior sheets of metal, offering a seal. But, the kind of end blocks used in the door can help in terms of energy efficiency.

These days, a lot of companies use steel sheets cut to the length required for the door and use steel end caps for closing the ends. But, this causes thermal bridging which means the metal will transfer the heat into out of the garage.

Wood end blocks are a better option. Your garage makes use of various injection and manufacturing methods with wood end blocks. Instead of transferring heat, wood causes a thermal break that ensures no heat is lost in the winter. Also, this heat does not get into the garage in the summer.


Suboptimal weatherstripping, like PVC weatherstripping, will harden and become inflexible as temperatures begin to drop. This won’t give the protection you need. Thus, ensure you get high-quality weatherstripping that can stay flexible despite the drop in temperatures.

Non-Heat Transferring Door Joints

In terms of the joints of the garage door, one of the commonly used methods is attaching the sheets of steel covering the insulation with metal staples. Sometimes, glue can be used to support it. Also, this will cover a transfer of heat you don’t want. But, you will want a thermal break for this section of your garage door. Opt for a garage door that has a triple-contact PVC weather seal which connects the sheets so the inner and outer metal is not touching, eliminating your worries about a thermal bridge.