repairing commercial flat roof

The Importance of Proper Drainage for Commercial Flat Roofs

Having a commercial flat roof with drainage issues can lead to multiple problems. Possible health issues the building's occupants may experience are one major concern. The structural damage that improper drainage can cause to your building is another. 

Why do commercial flat roofs need proper drainage to remain damage-free? Read on to learn more about these issues and schedule an inspection to ensure your commercial roof's drainage system is in working order. 


How Drainage Occurs on Commercial Flat Roofs

There are multiple draining system options available for flat roofs. Most of these utilize pipes at the edges of the slight slopes all flat roofs have. It's important to know which type of drainage system you have so that you can better learn how to keep it effective.

For example, your roof may have an inner drain. This is a drainage system that is hidden under the roof or in the parapet wall. As a result, the surface area of your commercial roof has more visual appeal and greater storage space.

However, if your commercial roof’s drainage system is clogged or causing water to pool, you could be facing serious damages to your roof.


The Dangers of Pooling Water on Flat Roofs

If pooling water is left to linger for too long on a flat roof, multiple issues can occur, including:


Pools of water can attract animals such as birds and mosquitos. Birds attracted to ponding water can cause your roof to smell, and deter customers. Mosquitoes or other bugs attracted to ponding water can cause a nuisance and health problems for your employees or customers.


The scaffolding of a flat roof is only so strong. Once the weight limit for it is exceeded, the scaffolding can break.

In this situation, water can leak into a flat roof building. This will, in turn, cause water damage to the building’s structure and other items within the building.

Mould and Mildew

The continuous presence of a pool of water on a flat roof can also cause mould and mildew to grow on surfaces. There are many issues that can occur when this happens.

To start with, mould and mildew can cause health issues when people breathe them in. Thus, if mould is growing on and in your building, anyone who is inside is at risk of such issues.

Mould and mildew can also play a role in the breakdown of wood materials. Luckily, regular commercial roof maintenance inspections can prevent this issue from becoming too severe. Roofers can spot mould and/or mildew issues caused by ponding water and take care of them right away.

Commercial Flat Roofing Inspections in Southwestern Ontario

In sum, when commercial flat roofs drain properly, the building below and the people within it will remain safe and protected. In addition, building owners will pay lower costs for commercial roof maintenance and repair.

When you need a flat roof inspection or repairs for your drainage system, trust the experts at Quinn Roofing Solutions. We service Windsor and Southwestern Ontario with commercial flat roofing installation and repairs. We are a family-owned and operated roofing contractor that applies the highest standards to every aspect of our work. Contact us today for a free estimate.