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Flat and low-slope roof leak repair
Flat and Low-Slope Roof Leak Repair in Baton Rouge, LA
Flat and low-slope roofs hold water instead of shedding it, so small defects become leaks quickly. We look at drainage, seams, flashing and penetrations to find the cause, and tell you whether repair, a coating or replacement makes sense.
Baton Rouge and nearby areasSource-first diagnosisWritten scope of work
What to expect from our service team
Clear scope before work
Review the approach and price before deciding.
Prepared, clean crews
Equipped vehicles and respectful cleanup.
Local accountability
Neighbors serving neighbors with follow-through.
Flat & Low-Slope Roof Leak Repair
Why flat roofs leak differently
Pitched shingle roofs shed water downhill. Flat and low-slope roofs rely on a continuous waterproof membrane and working drainage. When water ponds, it sits on every seam, fastener and flashing joint, and finds any weakness.
You find low-slope roofs on additions, porches, carports, garages and many small commercial buildings. Common membranes include modified bitumen, TPO, EPDM and built-up roofing. Each has its own repair methods, so identifying the system is the first step in any repair.
Baton Rouge heat and UV wear membranes, and heavy rain tests drainage. Clogged drains, settled areas that hold water and punctures from foot traffic or equipment are common causes of leaks.
What to look for
Signs of a flat roof leak
Standing water after rain
Water that remains a day or two after rain points to drainage or low spots, and it stresses seams.
Blisters, bubbles or wrinkles
Trapped moisture or air can lift the membrane, and blisters can split.
Split, open or peeling seams
Seams are the most common failure point on membrane roofs.
Cracking or alligatoring
Surface cracking from sun exposure means the membrane or coating is aging.
Clogged drains, scuppers or gutters
Blocked drainage causes ponding and overflows at edges.
Stains on ceilings below a flat section
Interior stains often show where water finds its way through.
Causes01 02 03 04
What usually causes flat roof leaks
Ponding water
Low spots and blocked drains let water sit, which speeds wear and stresses seams.
Failed seams and flashing
Membrane seams and flashing at walls, edges and penetrations loosen with age and movement.
Punctures and impact
Foot traffic, equipment and fallen debris can puncture the membrane.
UV and heat aging
Sun and heat dry and crack roof surfaces over time.
How the work goes
How we handle flat & low-slope roof leak repair
Identify the roof system
Determine whether it is modified bitumen, TPO, EPDM, built-up or another system.
Check drainage
Inspect drains, scuppers, gutters and low spots where water collects.
Trace the leak
Examine seams, flashing, penetrations and punctures above the affected area.
Repair or recommend an option
Patch, reseal or rework flashing, or discuss coating or replacement if the system is near the end of its life.
Explain maintenance
Show how to keep drains clear and what to watch for.
Repair or something bigger?
Repair, replace or wait: how to decide
The right answer depends on the cause, the roof’s age and condition. Here is how to think about it.
Repair is usually enough when
The leak is localized and the membrane is otherwise sound.
Consider a coating or restoration when
The roof is aging but still structurally sound. Ask whether the system and its condition suit a coating.
Consider replacement when
The membrane is failing widely, insulation is wet or repairs keep recurring.
Keeping a flat roof leak-free
- Keep drains clear Remove leaves and debris from drains, scuppers and gutters regularly.
- Limit foot traffic Avoid walking on the membrane and protect it where access is needed.
- Check after storms Look for ponding, debris and any visible damage.
- Schedule periodic inspections Seams and flashing wear gradually, and early repair is cheaper.
- Document past repairs A record helps with warranty questions and future work.
Related leak repair services
Explore more roof leak repair services
Leaks rarely have a single cause. These related services cover the other places water commonly gets in.
Roof Leak Detection
Trace the stain back to the real entry point before anything gets repaired.
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Emergency Leak Repair & Tarping
Water coming in now? Temporary protection, tarping and the steps that follow.
Explore this service
Vent Boot & Roof Vent Leak Repair
Cracked pipe boots and leaking roof vents, a very common and fixable leak.
Explore this serviceEmergency Leak Repair & TarpingStorm Damage Leak RepairRoof Leak DetectionShingle Roof Leak RepairFlashing & Chimney Leak RepairVent Boot & Roof Vent Leak RepairSkylight Leak Repair
Want to know what repairs involve before you call? Read our guides to roof leak repair costs in Baton Rouge, common roof repair price factors and what to do when your roof leaks in heavy rain. Back to the main roof leak repair page.
Is a flat roof really flat?
Most are low-slope, with a slight pitch toward drains. If the slope is too slight or the roof has settled, water ponds.
How do I know what type of flat roof I have?
Common types look different: modified bitumen is often a rolled, granulated surface, TPO and EPDM are single-ply sheets, and built-up roofs are layered with gravel or a coating. An inspection identifies it.
Can a flat roof leak be patched?
Often yes, if the membrane is otherwise sound. The patch method depends on the roof system.
Is ponding water a problem?
It can be. Water that stays a day or two after rain stresses seams and accelerates wear. It often points to drainage or structural issues.
Should I coat my flat roof?
Coatings can extend the life of some aging roofs, but they are not right for every system or condition. Ask for an assessment first.
Do you work on commercial buildings?
We can look at small commercial and low-slope roofs. Describe the building when you contact us.
Frequently asked questions
Flat & Low-Slope Roof Leak Repair questions
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Serving Baton Rouge and nearby communities
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Contact the local team
Contact Red Stick Roof Repair
Send a message through the form and tell us what you are seeing. Include the location of the stain or drip and when it appears so the team can understand what help you need.