If you’ve seen bubbles or air pockets below the surface of your
rubber roof, you may wonder what’s happening and if you
should worry. These bubbles, which are commonly referred to
as “blisters,” are quite normal in EuroShield (rubber) roofing
systems, particularly on flat or low-slope roofs. At Straight Path
Construction, we inspect rubber roofs throughout Calgary regularly
and assist homeowners in repairing bubbling before it becomes
a more serious issue. In this blog post, we discuss what makes
rubber roof bubbles, when you should worry, and how to avoid them.
What Are Rubber Roof Bubbles?
Bubbles occur when air or dampness becomes trapped between
the rubber membrane and the roof deck during or after installation.
These pockets of air force the membrane upward, resulting in
protruding, soft spots that can increase over time. Although
tiny bubbles won’t create any instant problems, larger bubbles
can create a weakened roof and lead to leaks if not addressed.
Common causes of rubber roofing bubbling
1. Dampness During Installation
If the deck of the roof was not completely dry when the rubber
was placed, hidden moisture can become vapour, which causes
pressure that creates bubbles.
2. Lack of Adhesion
Bubbles may also be created when the adhesive with which
the membrane will be attached does not adhere uniformly. This
could be due to hurried installation, improper temperatures, or inferior materials.
3. Temperature Fluctuations
In a weather pattern such as Calgary’s, extreme temperature
fluctuation can lead to expansion and contraction. This stresses
the rubber membrane and can create bubbles with time.
Are Roof Bubbles Hazardous?
Not necessarily but they can be. Small, stable bubbles are
generally a cosmetic problem. But large, soft, or expanding
bubbles will stretch and disintegrate the rubber, making it
more susceptible to tears, leaks, or punctures. Eventually, the
damaged areas may have to be repaired or the membrane replaced.
When to Schedule a Professional Inspection
If you’re not sure if the bubbles on your roof are innocuous or
a sign of something, it’s always safer to hire a professional to check.
A professional roofer can inspect the size, position, and health of the
blisters to decide if they are a potential problem. At Straight Path
Construction, we provide Calgary free rubber roof inspections, so you
can know for certain what is going on with your roof.
Rubber Roofing in the Calgary Climate
Calgary’s climate can be particularly brutal on rubber and flat roofs.
With constant freeze thaw cycles, blizzard snow, and hot summer
sun, roofing materials contract and expand constantly. This makes
bubbling and other wear and tear more likely. That’s why selecting
a seasoned local contractor such as Straight Path Construction is
crucial. We install and repair EPDM roofs with methods specifically
engineered to withstand Alberta’s particular climate.
How to Repair Rubber Roof Bubbles
Repairing roof bubbles is based on their size and position. Small,
non-leaking bubbles may not need immediate repair but need to
be watched. In larger or spreading bubbles, professionals will:
Open the bubble and drain the trapped air or water.
Apply new adhesive to attach the membrane to the roof deck again.
Patch or reseal the area to create a watertight surface.
At Straight Path Construction, we use reliable fix methods to
guarantee long-term outcomes and assist in prolonging the
lifespan of your rubber roof.
Avoiding Bubbles in the Future
The most effective way to avoid bubbles is to have your roof
well-installed and ventilated. The deck should be fully dry and
smooth before installation. Employing quality adhesives, sealing
seams properly, and installing during the appropriate weather
conditions all cut the potential for bubbling. Periodic inspection can
also identify problems early before they become widespread.
Final Thought
Bubbling in rubber roofs is normal, but it should never be left
unnoticed, particularly in Calgary’s harsh climate. With proper repair
and inspection, your EuroShield roof can go on shielding your house for
years to come. At Straight Path Construction, we provide professional
rubber roof repairs, inspections, and complete replacements you can rely on.
Call to Action
Notice bubbling or blisters on your rubber roof?
Call Straight Path Construction or visit our website to book your
free roof inspection in Calgary. We’ll find the cause and fix it fast
before it becomes a bigger problem.
Frequently Asked Questions (FAQs)
Are bubbles in a rubber roof normal?
Yes, small bubbles or blisters are fairly common in EuroShield rubber
roofing. They often form from trapped air or moisture and may
not be a problem unless they grow or leak.
Why is rubber roofing bubbling?
Ordinary reasons are water that got caught while it was being installed,
weak adhesive attachment, and temperature fluctuations that make
the membrane expand and lift.
Do roof bubbles show that I should get a new roof?
Not always. Small, stable bubbles usually can be left alone and observed.
Large or spreading bubbles can be checked and may need repair or patching.
Can I repair roof bubbles myself?
Mild bubbling can be inspected by a professional in order not to harm the
membrane. Repair work usually entails cutting, sealing, and rebounding
the rubber surface best performed by experts.
Does Straight Path Construction fix bubbling on rubber roofs?
Yes! We offer free roof inspections and expert rubber roof repairs in
Calgary. Whatever it is bubbling, cracks, or leaks we’ll repair it right the first time.
