The bubbles you describe can be cut off the roof and sealed back in place using exterior single component urethane sealant from a building supply or hardware store.
How to repair bubble on roof.
In this bulletin we offer some ideas that may be helpful in dealing with blisters.
Walk the roof and locate any raised ridges or half bulges in the roofing.
Blisters can frustrate anyone who works with roofs.
How to prevent roof blisters.
Climb up to the roof with a ladder.
Old asphalt flat roofs with blisters bubbles and cracks.
If the membrane surface has been flood coated and aggregate embedded carefully spud the aggregate free from the surface and sweep clean.
Even a marginal roof application can protect your home for several years.
Be careful who you consult about your roof.
The line should be slightly wider than the diameter.
Allow proper ventilation for the new roof system.
Clean the work area of dust and other contaminants.
Repair blisters example of a roof blister.
The kit is probably the most economical choice for a small repair but you can do the job yourself with adhesive sealant primer and a piece of epdm or tpo.
Typically the repair entails using a hypodermic needle to release the air from the bubble and then pressing it flat or cutting away the bubble and applying a patch.
Spread roofing cement inside the.
The area to be repaired should extend a minimum of 18 inches beyond the perimeter of the defect to provide an ample clean area on which to install the patch and tie it into the existing roof membrane.
How to fix a bubble in a roof shingle 1.
Their arrival is usually a surprise their cause is often unknown and their removal is a lot of work.
Cut a line through the center of the bubble with a utility knife.
If working on a pitched roof wear a roofing safety harness.
Access the roof using an extension ladder.