Pros and Cons of Insulating Garage

Pros and Cons of Insulating Garage

What are the benefits and drawbacks of insulating your garages? It’s a question that has puzzled great thinkers and philosophers over the centuries.

Jokes aside, as soon as you begin digging into the details and studying. It’s a captivating question to answer. You may be thinking it’s a simple yes or no. However, this isn’t usually the case. If you use your garages frequently, insulating it makes sense.

Nonetheless, insulation doesn’t make sense if you treat your garages as a dumping site. That said, there are several benefits and drawbacks in this list that may surprise you. We’ll also tell you how to insulate garage ceiling with room above.

Therefore, take a look at the article and read through to the end. There are a couple of points that’ll make you ponder.


It Adds Usable Room to your Household.

Insulation corresponds to livability for the most part. Properly-insulated places are much more inhabitable than non-insulated garages, which will usually be off-limits during severe weather.

It’s why numerous early civilizations and animals used to reside in caves because the ground offers natural insulation that gives you a cozier life. In this way, you can use your garage not only for parking your vehicles but also for storing barely-used jewelry.

It’s a particularly applicable consideration in the COVID-19 age. Although many people are working from home, most of them don’t have enough room in their households to set up a functional office.

It Helps Regulate Utility Costs.

Regardless of the location or type, the idea behind insulation is to make sure that there’s no transfer of energy. Electric cables are insulated to stop the electric current from flowing to unplanned locations.

Poorly insulated garages face high electricity costs because the HVAC system is continually operating to ensure the room is at an agreeable temperature. Don’t forget that air molecules flow toward equilibrium and, therefore, chilly air may want to flow towards warmer outside temperatures during summer.

The chilly outside air will flow inside during winter. Without enough insulative impediments, the HVAC system will operate continuously to combat this effect.

Therefore, insulated garages can stop your electricity bill from shooting up, even if you utilize your garage from time to time for things like small parties, rock band rehearsals, or ping pong tournaments.

It Ensures a Consistent Temperature in the Room

In the previous section, we stated that an insulated garage offers the advantage of lower electricity bills. It controls the heat transfer between the inside and outside space and restricts the amount that air conditioning and heating system have to operate so that the garage can be at the preferred temperature.

Insulated garages also keep the temperature within a constant range. Although insulation itself cannot maintain the garage at a constant temperature during severe conditions, it helps combat the extremes and maintain the temperature at a more suitable range.

It’s an Amusing DIY Project

It may sound easy, but yes, insulating your garage can be a fun Do-It-Yourself project. Usually, you can do it over the weekend as it needs no specialist expertise. All you need are the necessary tools and a little perseverance.

Some garages are prepared for insulation to be installed. For example, a wooden garage has stud walls where you can install insulation in between. It’s that easy! You don’t require numerous tools, but you should have a stapler to attach the insulation to the wall and a box cutter to cut the insulation to the right shape. That’s it!

Ensures your Garage is Chilly

Most people usually think that garage insulation plays one role and that’s to ensure that your garage is warm when the outside temperature is chilly. Although that’s the case, insulation will fulfill that objective easily.

Insulation also has an opposite influence if the surrounding temperature is warm. It’s because of the delayed effects of garage heating on the surrounding temperatures. In this case, the insulation works in reverse. If you’re in the midst of summer and would like to keep as cool as possible, this is excellent.

It also implies that your air conditioner doesn’t have to work so hard to ensure that the room is cool because less of the chilly air escapes because of the well-insulated space. Furthermore, it’ll lessen energy bills.

It Offers an Impediment against Unwelcome Pests

Garages are known for being porous. Whether because of the large garage door that stays open for long periods or the many cracks and fissures in unfinished garage walls, garages have long been known to accommodate pests like rodents, insects, and snakes.

Insulating a garage keeps away unwelcome creatures from making your garage home. However, garage door design and how often people and cars get in and out of the garage, stop it from becoming completely airtight.


It can be Costly

Garage insulation can be expensive. The total installation cost mainly relies on:

  • Your garage size
  • Insulation type you use (a higher R rating is more costly)
  • If you have to pay someone to attach it for you

If you have someone installing it for you, one or two days of labor can cost the same as materials or even more. Therefore, put that in mind. Go for higher-grade insulation if you opt to pay someone to do it.

It can potentially be Risky

It’s something you have to be watchful of. If you opt to insulate your garage and you’re on a tight budget, then you may take into account using low-cost insulation or even your DIY insulation.

Most contemporary insulation has a fire protective rating. It implies that it’s not flammable, and if it is, it’s more prone to melting rather than burning. If you opt to go for something that isn’t fire-resistant, then you’ll be endangering your safety and others.

It’s not worth it if you don’t use your garage frequently

The obvious benefits of insulating your garage are drastically reduced when you’re not using your garage. For example, if you keep empty boxes and park your car in the garage, is there any reason to insulate your garage at all?

You can use that money for other purposes such as installing solar panels on the roof and, therefore, lessen energy bills. Therefore, if you’re thinking of insulating your garage, go through the uses you have for it.

Let’s now look at various ways of insulating your garage. Keep reading!

How to Insulate around Garage Door

If your current garage door isn’t insulated, you can either insulate it or replace it using a pre-made insulated garage door. There are a couple of garage door insulation sets in the shops, or you may choose to insulate metallic door panels by fixing stiff foam.

Remember that a new insulated garage door comes complete with a new rubber gasket along the base. This seal stops both severe weather and unwanted creatures from entering your garage.

Should I Insulate my Garage Ceiling?

Your best choice would be to insulate garage ceiling with foam board under the floor if you have a floored or separate living space above. Nonetheless, if your garage ceiling is finished and you wouldn’t like to begin any extensive remodeling (for instance, tear down your ceiling), then you can use blown-in insulation also. That’s how to insulate garage ceiling that is finished.

If your garage ceiling is next to an attic space with open rafters, then blown-in insulation can be an excellent option. You can select either cellulose or fiberglass with trade-offs in R-value, durability, installation ease, and sometimes the price. If you’re planning to install a floor it’ll make a big difference.

Should I Insulate my Detached Garage?

Yes, you should, and there are several benefits of insulting your detached garage. They comprise:


It feels much better to work in a garage that’s not roasting during summer and freezing in winter. Insulating a detached garage lessens rapid temperature swings in the garage, even if no extra heating/cooling is added.

It saves energy

When you insulate your detached garage, you also add cooling or heating. In short, better insulation means that you’ll spend less on energy costs.

Safeguards your possessions

Chilly weather can be tough for some items. A garage that’s not heated can be difficult on items that use batteries, caulks, paints, and numerous other chemical-based products. Extreme temperature swings during spring can lead to condensation in your garage, forming extra rust and mildew issues.


If you use your garage for crucial day-to-day activities that require a stable and cozy temperature, then insulating your garage can be an appreciable and inexpensive idea.

Nonetheless, if you use your garage to park cars, frequently opening the garage door can compensate for the numerous benefits of insulation and, therefore, makes it a problematic proposition if you’re looking for insulation as a means of future savings.

Lastly, it’s crucial to comprehend how your garage will be used and what advantages you want from insulation before deciding whether it’s worth it.

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