Asphalt Roofing Repair
Crazing and hairline cracking on an ageing asphalt roof is common, most is cosmetic, but it's worth checking before it becomes a leak.
Mastic asphalt is extremely durable, but it can develop surface crazing and hairline cracking as it ages and weathers, most of this is cosmetic and doesn't affect waterproofing performance, but deeper cracking, blistering, or damage at upstands and outlets can let water through and is worth addressing.
Sherford Roofing repairs mastic asphalt roofing across Plymouth and Devon, reworking damaged sections by hand to match the existing surface and restore full waterproofing performance.
Our Process
Survey the Surface
We assess whether cracking is cosmetic surface crazing or a genuine breach reaching the waterproof layer.
Cut Out Damage
Any failed area is cut out back to sound material.
Re-Apply Asphalt
Hot mastic asphalt is re-applied in the repaired area, matched to the existing thickness and finish.
Finish & Blend
The repair is finished to blend with the surrounding roof and restore a consistent, fully waterproof surface.
Asphalt Roofing Repair FAQs
Usually not on its own, fine surface crazing is a common cosmetic feature of ageing mastic asphalt and doesn't necessarily mean the waterproofing has failed. Deeper cracking or cracking at a junction is worth having checked.
Yes, localised repairs are a normal part of maintaining an asphalt roof and can be reworked by hand to blend with the surrounding surface.
An annual check, and after any significant storm, is sensible, catching minor cracking or blistering early avoids it developing into a leak.
Need Asphalt Roofing Repair?
Free estimates across Plymouth and Devon. Bauder certified, Checkatrade vetted, honest advice every time.
Or call our office: 01752 741888