Best suited to
buildings where the field of the roof still has service life and the failure is local.
Flat Roof Repair, at a glance
Most flat roof leaks in St. Louis trace to four places: a failed seam, a curb or pipe penetration, base flashing at a wall, or a drain that stopped draining. John Beal Roofing finds the actual source instead of smearing mastic where the ceiling stain is, and repairs it same day when the weather allows. Call (314) 429-6000 any hour.
The Short Version
Whether This System Fits Your Building
Service life
A correct repair holds until the surrounding membrane ages out.
What to watch
Ponding. water standing more than 48 hours after rain means the drainage is the real problem.
Installation
Where These Roofs Actually Fail
Membrane failures are almost never in the middle of the sheet. They start at the details — the curb flashing, the pipe boot, the wall termination, the drain.
That is why we spend the time on the parts nobody photographs. A field seam takes minutes; a properly rebuilt curb takes an afternoon and it is what decides whether the roof makes twenty years.
We also register the manufacturer warranty on your building, so the coverage exists in writing under your address rather than in a folder somewhere.
Related: Ponding water: causes and fixes
Common Questions
How long will this roof last in St. Louis?
A correct repair holds until the surrounding membrane ages out. Our freeze-thaw cycles and summer heat are hard on any membrane, so the install details and a twice-yearly inspection matter as much as the material.
Can we recover over the existing roof instead of tearing off?
Sometimes. If the substrate is dry and the deck is sound, a recover saves real money. If a moisture scan shows wet insulation, tearing off is the only honest answer.
Do you install this system yourselves?
Yes. Our own crews do the work, and we hold manufacturer certifications for the systems we install, which is what makes the full system warranty available.
What does a repair on this system cost versus replacement?
A localized repair is a fraction of a replacement, and on a roof with remaining life it is the right call. We will tell you which one your roof is — with photos.
How disruptive is the installation?
Low-slope work happens on the roof, not inside the building. We coordinate hot work, odor and noise windows with the tenants or residents before we mobilize.
Free Roof Evaluation
Tell us about the building and a dispatcher will call to schedule.