How Long Does A Flat Roof Last?

When choosing a roof for a project, there are many variables to consider. Due to the high-end HVAC and refrigeration equipment required on the rooftop of commercial buildings, flat roofs have become standard practice. Flat roofs, on the other hand, are becoming increasingly common, and they can provide property owners a number of advantages.

What Is a Flat Roof?

A flat roof is precisely what it sounds like when it comes to roofing. It has a flat or nearly level roof. When two sides of a roof meet, it’s called a ‘peak’ because that’s where the roof ends. If you want to keep water and snow from harming your roofing, you need to have a sloped roof in order to do so.

There are a lot of flat roofs that aren’t actually flat at all. The slope might be as low as 10 degrees in some cases. To be honest, it’s not always easy to pick up on.

What Is the Lifespan of a Flat Roof?

One of the advantages of a flat roof is that it can last a long time. Because these roofs can endure up to 50 years depending on the type of roof utilized, homeowners need to replace them once during their lifetime.

Various factors impact the longevity of a flat roof, including the type of materials used. Some other factors that play a role in this include:

·  The climate in the area

·  The type of roofing material used

·  Any roof penetration

·  Installation processes and methods

·  Proper maintenance

Ineffective installation or a poor level of maintenance can shorten the lifespan of a flat roof to 10 to 20 years.

Types of Flat Roofs

You can choose a flat roof in one of three different configurations. It’s a good idea to take a look at all of the options before deciding which one is most suited for your home. Here are the three most prevalent and some specifics about each to help you make an informed decision.

Built Up Roof (BUR)

In the construction of a built-up roof, waterproof material is frequently employed. It can be asphalt, rubberized foam sheets, or tar paper. A built-up roof is one of the most durable types of roofing available. An average lifespan of 10 to 25 years can be expected from it. This, however, is contingent upon the complete construction of the roof.

BUR is more expensive to build than other types of flat roofs. It can last for up to 25 years, and in some circumstances even longer, once it’s installed. Compared to prior BURs, many of the newer models are built with better-quality components.

There are several advantages to using this type of roof. A common ingredient in the mix is gravel, which is a proven fire retardant. Considering it as an option, it may be appealing to some. An additional benefit of a BUR roof is that it is cost-effective in the long run.

Weight and cost are some of the limitations of this roofing material. It is possible that the joists will need to be reinforced over time. Professional installation is required to get the benefits.

Modified Bitumen Roof

Another popular option for flat roofs is a single-ply modified bitumen roofing. Because of its low cost, it has been widely adopted throughout time. It has a lengthy life expectancy. People looking for a long-term roof solution should choose a 25-year lifespan for this product. Lifespan depends on factors such roof size, how often it is maintained and how well it was installed. If it isn’t properly maintained and sealed, it has the potential to leak.

Because they are made from a combination of asphalt and polymer blends, these roofs are both long-lasting and flexible. Two of their key advantages were their ease of installation and light-colored material options that can help reflect the sun away, so reducing energy costs.

Rubber Membrane Roof

The third option is a rubber roof, such as EPDM (ethylene propylene diene monomer). When it comes to rubber roofing, this is the real deal. The popularity of this substance has progressively increased over the years because of its multiple benefits. This single-ply roof, which resembles an inner tube, has a long lifespan. It is, nonetheless, incredibly long-lasting because to its engineering.

In addition, it’s possible that the sun won’t do any damage to this roof. It can be ballasted with stone, glued, or fixed to the ceiling in a variety of methods.

The lighter the material, the simpler it is to install this type of roof. It’s more resistant to tearing, scuffing, and sun discolouration than other materials are. It is far easier to repair a metal roof in the event of a leak than it is to fix a roof made of another material.

It is because darker colors absorb heat more quickly that lighter ones are prized. Some things are more pricey than others. 

Which Roof Is the Best Option?

A number of variables need to be taken into account. In many cases, the best method to examine these materials is to work with a specialist. Longevity is a significant issue for homeowners who don’t want to have to keep replacing their roof. When making a decision, the roof’s beauty and energy efficiency should also be taken into account. For many people, a simple-to-maintain roof is also a major factor.

If you want the best roof for your home, you’ll want to be sure that it is specifically matched to your needs. The quality of the installation is critical to the roof’s long-term viability.

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