Your business’s physical building not only houses all your operations but also gives off the level of professionalism that visiting business partners and clients will get when they visit. The better you take care of your premises, the more seriously the market will treat you.

Commercial flat roofs are durable and long-lasting assuming regular maintenance, cleaning, and inspections. However, most flat roof installations will eventually require a replacement. Perhaps a business’s requirements change over time, or the roof is simply too old to continue using safely.

Either way, there are many factors and considerations when making a full replacement of your commercial flat roof. With the right knowledge and preparation, you can ensure the project goes smoothly and aligns with your company’s needs.

Here are a few tips from us here at BML Roofing, a leading roofing company in Brantford.


While it may seem strange that a flat roof installation involves a slope, many commercial roofs do include a minor slant to prevent water from pooling on top of the building. For your new roof, make sure the sloping gives you sufficient drainage to prevent water damage. A minimum of 0.25 inches per foot is recommended.


Another way to prevent seeping water is proper drainage systems, which must work in tandem with the slope in your replacement flat roof installation.
Regular drains, gutters, and downspouts divert water away from the roof into the sewer pipes. Regular cleaning will stop clogs from forming in these drains.

Flat Roof Drainage System

Example of a flat roof drainage system (source: roofslope)

Structural Support

Replacement roofs must also consider the amount of weight that will be placed on top of the structure. This factor largely determines the type of material you use in the new roof. Consult your roofing company if you have any doubts in this regard.


When discussing flat roof installations, a factor to consider is the R-Value, or the level of insulation. The higher this value, the better a flat roof can resist heat transfer. Consider choosing Polyisocyanurate, an highly-used insulation with a great R-Value.

Repair or Replace?

Before investing in a full replacement, consult with your flat roof installation company on whether repairs might be enough to keep your building roof functional. Replacement is usually necessary when the cost of repairs exceeds the cost of replacement.

Try to schedule a replacement during “calm” months like the Spring rather than during cold winters or hot summers where you need the roof the most.

Roofing Company Brantford | BML Roofing | Brantford, Norfolk County

Now that you’ve considered the factors and balanced the business budget toward a replacement, it’s time to find a roofing company that will serve your needs right. For the Brant and Norfolk counties and anywhere else nearby, BML Roofing has been the top choice for many governments and businesses looking for a roofing company in Brantford.

● Commercial flat roofs are durable, but they still require regular repairs and inspections. At some point, your business will need to consider a full replacement.
● Roof replacements involve a lot of factors. You need to decide on the new materials, the insulation, the drainage, and the structural integrity. Consulting with your service provider is recommended.
● Whether you need an inspection, a replacement, or even just repairs, get in touch with one of the finest roofing companies in Brantford. Contact us today to get started on your next company project.