Is Building A Deck Over A Garage Roof Possible And Worth It?

Blog, Construction

There are dozens of ways one can boost the curb appeal of his/her home. Building a deck over a garage roof falls under the stated category. This kind of project may come off as too complicated or challenging, but I believe you may have so many questions to ask before you commence.

Is building a deck over a garage roof safe? Can the roof sustain the deck? Is building a deck over a garage roof worth it in the first place?

If you find yourself asking any of the above questions or something similar to the stated topic, this article is for you. Through the course of this article, I will answer all questions and verify whether or not building a deck over a garage room is worth it or not. Let’s get started.

Can you build a deck over a garage roof?

The simple answer is yes. It is entirely possible if your garage roof is flat. Doing this will even save you money compared to building the deck separately. What’s better is that you save a ton of space by building over the garage roof, especially if your property has limited space.

That said, building a deck naturally is a complicated task, and building one over a garage roof is even more complicated. If you are not well experienced in the field of residential construction, it would be almost impossible to complete this project without the help of an expert.

Doing so without an expert may result in leaks in the roof or may threaten the structural integrity of the garage. So why should you build a deck? What are the benefits of doing so?

What are the benefits of building a deck over a garage roof?

If you are planning on building an above-ground deck, you will want to know the benefits of doing so. First of all, as I have mentioned earlier in this article, if you have limited space on your property, building the deck over the garage roof might be a great addition. You get to enjoy the view and relax without compromising on space.

Secondly, you will have more space that can be used for social gatherings or get-togethers with your friends and family. Another benefit worth mentioning is that it is a cheaper alternative compared to the cost of building a deck separately. Lastly, you expand your living space and increase the resale value of your home.

Things you ought to keep in mind

Before you commence on your deck project, there are certain factors or conditions you have to keep at the back of your mind. Some of these factors include the following;

1. Weight and support

It is obvious that building a deck over a roof will add weight to the structure underneath. This structure may not have been equipped enough to accommodate such weight. So, you must inspect the structure to see if it can hold the weight by checking with a contractor, building inspector, or architect.

The contractor, inspector, or architect will be able to determine if modifications would be needed in the garage to hold the weight of the deck. With the right planning, you are already on your way to a well-constructed deck.

2. Railings for the deck

Whether or not you have kids, you will need railings installed along the edges of the rooftop deck. I don’t believe you want any case of accidental fall from the deck. To ensure the deck is safe, the height of the rails should be adequate, and the material should be strong enough to support light weight.

3. Access

You still have to consider how you can access the deck from your home. If the garage was initially attached to the home, and the home has more than one floor, all you need do is walk out a door on the level that leads to the garage. However, if the garage is not attached or the position is not conducive for easy access, you can always add stairs leading up from the ground to the deck.

4. Flooring material

Another factor to consider is the flooring to be used for your deck. The flooring you should use will affect its visual appeal and its lifespan. Wood is one of the most used materials for deck flooring, but other types of flooring may serve you and your family as well. So be sure you know the various types of deck materials available to you and which is best suited.


What is a deck over a roof called?

It is termed roof decking or roof sheathing.

Are there any problems with roof decking?

The major problem in roof decking or rooftop decks is the weight. If the garage roof is not reinforced to handle the deck weight, it can cause damage later on.

How long does a roof deck last?

The lifespan varies depending on the material and the maintenance done, but they ought to last for 20 – 30 years.

Are rooftop decks expensive to build?

Yes, they are. However, they cost less to build compared to the cost of building a deck separately.

Conclusion – Is building a deck over a garage roof worth it?

A rooftop garage is a wonderful addition to a home, carrying many benefits. From adding to the aesthetics to utilizing space on your property, these are some of the reasons why it is worth it. That said, you must remember that there are many factors you ought to consider before and during the project.

Additionally, you must remember that building a deck requires preparation and proper planning. It is very important you hire a licensed professional. He/she will streamline the design and planning process, saving money and reducing headaches down the road.

I hope this article was able to give you more understanding of your upcoming project. You might also be interested in this article on the different types of garages for residence.

Thanks for reading.

About Samkins

Samkins Construction Inc specializes in custom home building, general contracting, design-build, architectural design, construction management, and real estate services.


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