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It is very important for property owners whether commercial or residential, to closely monitor their roof’s condition especially if it’s a flat roof . Flat roofs generally require more work than any other type of roofing. As much as it is simple to build, a flat roof needs regular maintenance and inspections to ensure everything is okay. At Dominion Roofing, we understand how difficult it is to make decisions as to whether you need to replace a flat roof, or if a few minor repairs will be enough. In this blog post, we will advise you on the signs you should check to know when it is necessary to repair or replace your flat roof.

How long does a Flat roof typically last?

Flat roofs can last up to 20 years if properly installed. The lifespan of a flat roof depends on;

The materials covering it.

How it is maintained.  

The type of materials used to construct the flat roof.


When do I know if I need to replace my flat roof? 

As mentioned earlier, it can be challenging to determine whether to repair a flat roof or replace it. There are a few warning signs you’ll want to keep an eye out for, these will let you know that you may need to have your roof repaired or replaced.  Once the roof develops holes or you start experiencing leaks, you should replace it. One major indication of a leaking roof is discoloration in the ceiling. It is often caused by the moisture penetrating and building up below the roof’s layers. Additionally, you will have to replace the flat roof when you notice that the large roof panels are disintegrating. When in this state,  the roof will require a complete overhaul.

roof repairs

What are the characteristics of a good roof?

A good roof should maintain its beauty for a long time, even up to 20 years! Some other elements of a good roof are ice and water shielding.

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Is it expensive to get a flat roof replacement?

No, flat roofs can be replaced at very affordable prices. In Canada, the average cost of replacing a flat roof is $5-10 per sq. foot. Therefore, installing a simple 1,600 square foot flat roof will cost around $8000. The cost of replacing a flat roof depends on;

• The material you choose.

• The size of your roof.

How long does it take to replace a flat roof?

The amount of time spent on replacing a flat roof mainly depends on the materials used. The average time spent on replacing a flat roof is between 3-10 days. At Dominion Roofing, we are highly experienced and will ensure the entire process is done in the shortest time possible. We have highly skilled technicians that will deliver an excellent job.

flat roof repairs


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What’s the best material for a flat roof?

There are several materials that work perfectly on flat roofs. Metal, for instance, is one of the common materials for flat roofs. When properly maintained, it can last for over 35 years. One of its advantages is that it reflects sunlight, bringing down energy bills.

How do you stop a flat roof from leaking?

There are a number of ways you can stop a flat roof from leaking. One DIY remedy includes Removing debris on the roof and identifying the damaged area. Once you spot the leaking area, apply roofing cement.

Is it easy to install a flat roof yourself? 

By following the right directions and guidelines, you can easily install a flat roof without the need of an expert. You will however need the help of your friend or neighbor.

If I get my flat roof fixed, does that already include structural repairs (if needed), or do I need to get another guy for that?

Structural restorations aren’t always part of roof repairs, but you can request an additional quote to determine the cost. It also depends on the type of roof repair that’s done and whether or not the repair accounts for issues that affect your roof’s structure. Make sure to enquire before you go ahead with the job to ensure you have an accurate idea of the overall rate.

Is it okay to have my flat roof fixed in snowy weather?

It depends on the type of material your roofing has and whether it’s a bitumen or membrane roof. You can’t install a rubber membrane roof correctly in the snow as the adhesive material doesn’t bond correctly in those conditions. On the whole, you can do it, but experts don’t recommend it. If leaving it to summer would cause more damage, then handling the situation as soon as possible is always better.

Is it possible to put an air conditioning unit over my flat roof?

Yes, it is. However, it would help if you considered that it could damage your roofing membrane, and pooling water can lessen your roof’s lifespan. Ensure that you have it installed correctly and that you have the area around the unit flashed. This will help reduce the chances of leaking and help preserve your roof’s integrity.

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