How to Repair Storm Damage on a Felt Flat Roof Storm

How to Repair Storm Damage on a Felt Flat Roof Storm

Damage on felt roofs demands immediate attention to prevent water ingress and structural deterioration. Strong winds, heavy rain, and flying debris can all compromise your roof's integrity, leading to leaks and costly repairs if left unaddressed.

Here's how to go about repairs from storm damage.

Safety and Initial Assessment

Before Starting

Working on a roof requires careful preparation and safety measures. Always wear non-slip footwear, protective gloves, and appropriate safety equipment.

Choose a dry, calm day for repairs, as working in wet or windy conditions increases accident risks.

Damage Inspection

Conduct a thorough inspection to identify all damaged areas. Look for:

  • Tears and splits in the felt
  • Lifted or loose sections from wind uplift
  • Blistering and bubbling
  • Areas of standing water

Types of Storm Damage

Wind Effects

Wind can cause two primary types of damage to flat roofing felt. Wind uplift occurs when gusts get underneath the roofing material, causing it to lift and separate. Wind scouring gradually erodes the roof's protective surface, weakening its waterproof capabilities.

Water Damage

Storms often lead to ponding water, particularly if drainage systems become blocked. This standing water can strain the roof structure and eventually split membrane seams.

felt flat roof repairs from storm damage

Preparation for Repairs

Surface Preparation

Before beginning repairs:

  • Remove all debris, leaves, and loose materials
  • Clean the damaged area thoroughly using a stiff brush
  • Allow the surface to dry completely

Repair Methods

Minor Repairs

For small tears and splits:

  • Clean and dry the affected area
  • Apply flat roof sealant directly to the damage
  • Ensure complete coverage of the damaged section
  • Allow proper curing time

Major Repairs

For extensive damage:

  • Cut replacement felt larger than the damaged area
  • Apply bitumen adhesive to the damaged section
  • Position the new felt carefully, ensuring proper alignment
  • Press firmly to remove air bubbles
  • Seal all edges to create a watertight barrier

Professional Considerations

When to Seek Expert Help

Consider professional assistance when:

  • Damage covers a large area
  • Multiple layers of roofing are affected
  • You lack experience with torch-on felt application
  • Insurance claims are involved

Professional roofers have the expertise and equipment to handle complex repairs safely and effectively. They can also assess underlying damage that might not be visible to untrained eyes.

Preventive Measures

Regular Maintenance

Implement these preventive strategies:

  • Conduct bi-annual roof inspections
  • Keep drainage systems clear and functioning
  • Address minor repairs promptly
  • Trim overhanging branches
  • Monitor for signs of wear 

Drainage Management

Proper drainage is crucial for preventing future storm damage:

  • Clear gutters and downpipes regularly
  • Check for proper water flow after storms
  • Address any areas of ponding water promptly

Long-term Protection

Weather Resilience

To enhance your roof's resistance to future storms:

  • Apply protective coatings when appropriate
  • Ensure all flashings are secure
  • Maintain proper seals around roof penetrations
  • Consider installing additional drainage points in problem areas

Remember that proper maintenance and swift attention to storm damage can significantly extend your roof's lifespan and prevent costly repairs. While some repairs can be handled as DIY projects, always prioritize safety and don't hesitate to contact professionals for complex or extensive damage.


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