All About The Roofers Daily

How do I know if my flat roof needs replacing?

Aug 16

These are the signs that minor roof repairs won't suffice.

1. Water Pooling

Pooling water is a significant problem for flat roofs. This can cause cracks and irregular stress. The roof can shift over time and may not be as level as when it was first installed. Water will likely pool in dips or divots. Flat roofs are designed to withstand water. However, water pools should be removed as soon as possible to prevent water from seeping into roof layers. If left unchecked, pools can cause damage to the roof's surface and shorten its lifespan.

2. Blistering, Bubbling, and Adhesion Failure

Blistering and bubbling are signs of adhesion failure. Most visible bubbles are filled with water and air. Poor workmanship, poor insulation, or inadequate ventilation could all be reasons for visible bubbles. If the problem is caught quickly, it can be treated. However, if left untreated, blisters can grow too large. These blisters can eventually pop, leaving holes in your roofing, which could damage your home. This could be due to excess moisture in the roof installed.

3. Moisture and Leaks

Flat roofs can have lingering moisture problems that can be managed effectively if you keep an eye on them. Flat roofs can leak just like any other type. The water has nowhere to go but down. This causes moisture to seep into the roof membranes and can lead to mold and fungus growth. Having your roof checked and regularly maintained is essential to prevent moisture and leaks. A professional roofing company can help you determine the best course of action if problems are not caught in time.

4. Tears, Cracks, and Splits

This is the most prominent problem that an untrained eye can see. The ply board and chipboard can absorb water if a crack or split is not addressed quickly. The material may become mushy and make it difficult to walk on. If the problem is not severe, you may be able to have your roof fixed. If you see cracks or splits, it is best to have your roof replaced.

5. Flashing

Like other materials, flat asphalt roofs contract and expand with temperature changes. If this is not addressed, the flashing will begin to pull away from the edges and corners of your roof. This can lead to moisture getting trapped and leaks on your ceiling. Failure to correct the problem promptly can lead to deterioration of your roof's flashing and even need to be replaced.

6. Organic Growth

Algae, lichens, and moss may not seem like a big problem, but they are indicators that your flat roof needs attention. Unwanted water retention is indicated by any organic growth found on your roof. If left untreated, it could cause severe damage to your home. A professional can inspect your roof if you cannot identify the cause of organic growth.

7. Broken Top Coat

The roof's top coating may be damaged if you hear the roof fluttering in windy conditions. The fluttering panels can cause damage to the materials below, and the roof will be exposed every time it rains or is snowed. This issue can lead to roof failure and water damage.


Some issues can be fixed with minor repairs. Repairs will likely be tedious and costly if your roof is severely damaged. In such cases, roof contractors may suggest roof replacement to save money.

Many other problems can arise from your flat roof, but these are the most common. Contact a professional flat roof repair company if you feel your flat roof needs attention. This will prevent the problem from getting worse. They can diagnose the problem and provide a quote for repair or replacement.