Preparing Your Southern California Commercial or Industrial Roof for Extreme Weather & Heavy Rain
Tips from Azusa Commercial Roofing Experts at Stone Roofing Company, Inc.
Southern California may be known for sunshine, but when extreme weather hits, commercial roofs are often the first line of defense—and the first place problems appear. This week, an atmospheric river–style rain storm is forecast to impact much of Southern California, bringing periods of heavy rain, gusty winds, and the potential for localized flooding.
At Stone Roofing Company, Inc., a trusted Azusa commercial roofing company, we help property managers and building owners prepare their commercial roofs before major weather events lead to roof leaks, roof damage, or costly disruptions. Below are essential tips to protect your commercial roof ahead of this storm, along with last-minute steps you can take if heavy rain is imminent.
Why This Week’s Atmospheric Storm Is a Serious Concern for Commercial Roofs
Atmospheric rain systems deliver longer-lasting, heavier rainfall than typical storms. For commercial flat and low-slope roofs, this can quickly expose existing weaknesses.
Common risks during atmospheric storms include:
- Overwhelmed roof drains and scuppers
- Ponding water that stresses roof membranes
- Leaks from small cracks or failed seams
- Wind damage to flashing, edge metal, and roof coatings
- Moisture intrusion that can impact insulation, ceilings, and interior spaces
If a commercial roof has not been inspected recently, heavy rain can turn minor issues into emergency repairs.
Key Tips to Prepare Your Commercial Roof for Heavy Rain
1. Clear Roof Drains and Scuppers
Blocked drainage is one of the leading causes of roof leaks during severe rain events.
Before the storm arrives:
- Remove leaves, debris, and trash from roof drains
- Clear scuppers and gutters
- Ensure downspouts are directing water away from the building
2. Inspect the Roof Membrane
Commercial roofing membranes are designed to protect your building—but even small vulnerabilities can allow water intrusion during sustained rainfall.
Watch for:
- Cracks, punctures, or blistering
- Open seams or deteriorated repairs
- Areas where the membrane has pulled away
- A professional inspection is the best way to identify issues that aren’t visible from the ground.
3. Check Flashing, Roof Edges, and Penetrations
HVAC units, vents, skylights, and roof edges are common leak points during heavy rain and wind.
Make sure:
- Flashing is secure and sealed
- Edge metal is properly fastened
- Sealants are not dried, cracked, or separating
4. Address Ponding Water Areas
Atmospheric storms can overwhelm roofs that already struggle with drainage. Standing water that remains after rainfall accelerates roof deterioration.
Roofing Solutions may include:
- Improving drainage
- Repairing low spots
- Applying protective roof coatings
Stone Roofing Company, Inc. offers commercial roofing solutions designed to withstand Southern California’s increasingly extreme weather patterns.
Last-Minute Tips If the Storm Is Already Approaching
If heavy rain is expected within days, these quick actions can still help reduce risk:
- Conduct a visual roof check from a safe location
- Remove loose debris and unsecured rooftop items
- Confirm drains are flowing freely
- Document existing roof conditions with photos
- Schedule a post-storm inspection as soon as conditions allow
⚠️ Safety reminder: Never access a commercial roof during active storms or high winds.
Why Booking a Free Commercial Roof Inspection Is Especially Important Right Now
Many storm-related roofing failures begin as small, unnoticed issues. With an atmospheric rain storm forecast for Southern California this week, now is the ideal time to schedule a free commercial roof inspection.
A professional inspection from Stone Roofing Company, Inc. can help:
- Identify vulnerabilities before heavy rain hits
- Reduce the risk of emergency leak repairs
- Extend the life of your commercial roof
- Protect tenants, inventory, and daily operations
Backed by 90 years of roofing experience, Azusa commercial roofing company, Stone Roofing Company, Inc. understands how Southern California weather impacts commercial roofs—and how to prepare them.
Schedule Your Free Comprehensive Los Angeles / Southern California Commercial Roof Inspection Today
Extreme weather doesn’t wait, and neither should roof maintenance. If your commercial roof hasn’t been inspected recently, proactive preparation can save time, money, and stress.
📍 Stone Roofing Company, Inc. based in Azusa, California and proudly serving Los Angeles, Orange, Riverside, San Bernardino and San Diego Counties and the Inland Empire.
📞 Contact us today at (888) 429-1213 to schedule your free commercial roof inspection and consultation and ensure your building is ready for this week’s atmospheric storm—and the rest of the rainy season.
FREE COMMERCIAL ROOF INSPECTION
Los Angeles, Orange, Riverside, San Bernardino & San Diego Counties
Prepare Your SoCal Commercial Roof for Heavy Rain & Wind
Book your free comprehensive on-site roof inspection with Stone Roofing Company, Inc. today and protect your property from stormy weather.
(800) 317-8663