Problems with flat roofs almost always start small, such as a lifted joint, a split in the felt, a damp patch on the ceiling, or a bit of standing water. Unfortunately, small issues rarely stay small for long. If you can locate the damage early, you can repair it yourself. Leave it too long, and you will require professional roof repairs in Reigate.
Today, we will take you through the most common flat roof issues and when you might need an expert’s intervention.
Why Do Flat Roofs Fail
Flat roofs suffer from more abuse than you realise. For starters, they deal with standing water, sun exposure, temperature changes, foot traffic, moss, and debris. They do not shed water as quickly as a pitched roof. Naturally, even the smallest weakness can let water in over time.
Flat roofs also have more vulnerable points. While the main field of the roof is crucial, the edges, flashings, outlets, joints, corners, and upstands are often where the trouble starts.
What Are the Most Common Flat Roof Problems
Here are some of the most common problems affecting flat roofs.
Accumulated Water
Flat roofs should never be entirely flat. They need enough curvature to allow water to drain properly. If it sits on the roof for extended periods, it will wear off the surface, stress the joints, and create weak spots.
Cracking, Splitting and Blistering
Whenever the temperature changes, flat roof coverings expand and contract. Over time, this movement can cause cracking, splitting, or blistering, particularly on older felt roofs. The presence of blisters proves that moisture or air has become trapped beneath the surface, but they can be fixed with professional roof repairs in Reigate.
Lifted Joints and Failed Seams
The joints where roofing materials overlap must stay sealed. If the seam fails, standing water will track underneath the covering and travel further than you can imagine.
Damaged Flashing
Flashings around skylights, walls, roof lanterns, edges, and pipes are common points of failure. If the flashing cracks, lifts, or comes away from the surface, water will definitely find its way in.
Ways to Repair a Flat Roof
Here are a few ways you can repair a flat roof yourself.
Small Cracks or Splits
Minor splits on certain flat roofing systems can sometimes be fixed with the right patching product or liquid-based repair system. The damaged area must be cleaned, dried, and properly prepared before any work is done.
Repairing Lifted Joints or Seams
If the problem is around an overlap or seam, you need to reseal the section properly by cutting back damaged material and installing a new patch or fixing the joint.
Fixing Damaged Flashing
Worn-out or loose flashing needs to be secured again, resealed, or replaced. If the flashing fails after the surrounding roof covering breaks down, simply fixing the edge detail may not be enough.
When Do You Need Professional Help
You cannot avoid calling a professional if leaks keep coming back. Also, only someone experienced in roof repairs in Reigate can help you if you are dealing with multiple damaged areas.
Tune Roofing Ltd can take care of all your roofing needs. We are an expert roofing company based in South Croydon. With over two decades of experience, we are built on honest advice, quality artisanship, and a reputation you can trust.