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How To Repair Your Flat Roof

Updated: Feb 15

Choosing a flat roof offers cost and time savings during construction and maintenance. However, one common problem with flat roofs is the risk of leaks. Keep reading for the ultimate guide on how to fix your flat roof leak.



Contents


How to fix your Flat Roof Leak


Seal It Roof Seal Liquid Membrane System is an efficient one-coat roof sealer with various benefits.


  • High elasticity under varying weather conditions

  • Excellent resistance to ageing, UV, and discolouration

  • Outstanding thermal properties

  • Easy application with no specialist training

  • Adheres to various building substrates

  • Solvent-free and non-flammable

  • Can be used in all weather conditions

  • Long-lasting flexibility

  • Resistant to chemical attack

  • Made in the UK

  • Neutral cure, so won’t react with metals such as lead

  • Easy application either with a brush, roller or pumping


Application:


Suitable for various surfaces, such as metal, wood, brick, and more.

Ideal for repairing roofs, flashing, gutters, and more.

Suitable for various materials, including bitumen coatings and roofing felt when primed with Roof Seal Bleed Blocker.


Long Lasting Durability:


When correctly applied, it can last up to 25 years.


To purchase Roof Seal, please visit your local Selco Builders Warehouse branch or Buy Online.







Warning Signs of a Flat Roof Leak


  • Dark patches on the ceiling signal moisture seeping through, which can lead to severe problems.

  • A sagging flat roof, especially in older buildings, indicates timber decay.

  • Low spots on the roof can trap water, causing damage to the structure beneath.


Causes of Flat Roof Leaks


Age: Roofing materials deteriorate over time due to weather and environmental factors.


Damaged Flashing: Flashings, like lead, can deteriorate and allow water entry.


Poor Installation: Precise installation is crucial for flat roofs.


Ponding Water: Water pooling on the roof can lead to leaks.


Seams and Overlaps: Incorrectly sealed seams and overlaps are common leak sources.


Blistering: Blisters are signs of water intrusion and can lead to leaks.


Delamination: Layers separating due to poor installation can cause leaks.


Detailing Around Vents: Poor sealing around vents and pipes can be weak points.


Structural Issues: Design problems can contribute to leaks.


How to Identify a Leak


  1. Inspect the dry roof to find low spots and water rings.

  2. Spray suspected areas with a hose to locate the leak source.

  3. Check for other damage that may lead to future leaks.


Preventing Flat Roof Leaks


Regularly inspect the roof in spring and autumn. After bad weather, check for damage and ponding water. Maintain the guttering system.


Repair costs vary based on the issue's scale.

Temporary fixes can buy time for comprehensive repairs.

Different materials require specific repair methods.

House Insurance and Leaking Roofs


Insurance coverage depends on the cause of the leak.

Damage from wear and tear often requires out-of-pocket repairs.


To purchase Roof Seal, please visit your local Selco Builders Warehouse branch or Buy Now From Selco


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