What is a center patio in a Sunset District home?

A center patio is an open-air courtyard built into the middle of classic San Francisco row houses, typically located adjacent to the kitchen. Because these homes were constructed touching their neighbors with no side windows, the center patio brought daylight and fresh air to interior rooms. Many were later covered to create interior solariums.

How do I know if my patio cover needs replacement?

Signs of a failing patio cover include discolored or yellowed panels, visible cracks or brittleness, water leaks during rain, and reduced light transmission. If your cover is original to the home or more than 30 years old, it has likely reached the end of its effective service life and replacement will restore both appearance and function.

What is the difference between polycarbonate and glass patio covers?

Polycarbonate panels are lighter weight, more impact-resistant, and less expensive than glass while providing excellent light transmission. They diffuse sunlight to reduce glare and heat. Glass offers maximum clarity but is heavier, more fragile, and typically more costly. Sure Roofing can discuss which option best suits your priorities.

Will a new patio cover match my home's architecture?

Sure Roofing tailors each installation to fit seamlessly with your home's existing architecture and your lifestyle needs. We offer material and framing options that complement the character of Sunset District homes, from period-appropriate designs to sleek modern upgrades. We discuss options during our estimate visit.

What should I look for in a roofer for patio cover work?

Look for a contractor with experience in center patio covers specifically, as these installations require understanding of how Sunset District homes are constructed. The contractor should offer material options and be able to ensure proper weatherproofing where the cover meets your home's roof and walls. Diamond Certified contractors like Sure Roofing have verified track records of quality work.

What is the difference between a center patio and a light well?

A center patio is a usable courtyard space in the middle of the home, while a light well is a narrow air shaft intended to satisfy building codes for light and ventilation. Both features bring daylight into tightly packed San Francisco homes. Sure Roofing replaces covers on both center patios and light wells throughout the Sunset District and Marina.

Established Commercial Waterproofing Contractor in San Francisco

Family-owned and Diamond Certified since 1982, serving the Bay Area with exceptional quality and customer service.

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San Francisco's Commercial Waterproofing Experts Since 1982

Sure Roofing provides commercial waterproofing services throughout San Francisco, Marin County, and San Mateo County. Our team is experienced in working on large-scale roofs with sensitive equipment like enterprise internet equipment, HVAC systems, solar panels, security and fire alarm systems. Waterproofing around this type of equipment requires a detail-oriented approach, and we take every precaution to seal penetrations properly while keeping your business running smoothly. Learn more about our mission and team.

Commercial Waterproofing Challenges

Commercial buildings present waterproofing challenges that residential properties do not. Rooftop equipment creates multiple penetration points that must be sealed precisely. Enterprise internet equipment, HVAC curbs, exhaust vents, fire alarm systems, security devices and skylights all require individual attention to prevent water entry.

Large roof areas increase the risk of ponding water, which accelerates membrane deterioration and creates additional leak opportunities. San Francisco's daily temperature swings between morning fog and afternoon sun stress flashings and sealants through constant expansion and contraction.

Sure Roofing addresses these commercial-specific demands with systems suited for equipment-heavy roofs and installation methods that prioritize long-term sealing performance.

Waterproofing Around Rooftop Equipment

Sure Roofing seals penetrations around HVAC systems, fire alarm equipment and security devices without disrupting building operations or damaging sensitive components. Every penetration point is addressed individually, and crews coordinate work around your building's schedule.

Sure Roofing's detail-oriented approach includes:

Sure Roofing precisely seals around HVAC curbs, condensate lines and refrigerant piping to prevent water entry at these common penetration points.
Sure Roofing carefully seals fire alarm system penetrations and conduit entries as part of every commercial waterproofing project.
Sure Roofing protects rooftop equipment from debris and damage throughout each project.
Crew scheduling at Sure Roofing is coordinated with building operations to minimize disruption to your business.

Penetration points around rooftop equipment are among the most common sources of commercial roof leaks. Proper flashing and sealing at these locations is critical to long-term roof performance.

Systems We Install

Elastomeric Coating Systems

Flat and low-slope commercial roofs can be waterproofed through the application of elastomeric coatings that create a seamless, weather-resistant barrier. Sure Roofing offers protective systems including silicone and acrylic coatings that eliminate seams and joints where water typically penetrates. These monolithic systems conform to irregular surfaces and seal around penetrations without the weak points found in traditional multi-ply systems.

For commercial properties seeking long-term value, Sure Roofing's silicone-based coatings come with a 25-year NDL manufacturer's warranty.

Flashing & Penetration Sealing

Sure Roofing installs and repairs flashing at every potential leak point on commercial roofs, including vent pipes, HVAC units, fire system components and roof-to-wall transitions. Materials are selected for compatibility with your roof membrane and durability in San Francisco's coastal climate.

Ponding Water Solutions

Sure Roofing's silicone-based waterproofing systems address ponding water on commercial flat roofs without breaking down under standing water exposure. Commercial flat roofs that hold water for more than 48 hours face accelerated membrane deterioration, making silicone the preferred solution for low-slope roofs where drainage is limited.

Why Choose Sure Roofing for Commercial Waterproofing

Sure Roofing has served the Bay Area since 1982, bringing over 40 years of experience to every commercial waterproofing project.
Sure Roofing holds a Diamond Certified rating based on verified customer satisfaction surveys.
Sure Roofing's team is experienced working around HVAC, fire alarm, security and solar systems on commercial roofs.
Sure Roofing applies a detail-oriented approach to penetration sealing on every commercial project.
Sure Roofing's silicone coating systems come with 25-year NDL manufacturer warranties.
Sure Roofing holds public works capabilities for government and municipal projects and is licensed, bonded and insured.

Serving the Bay Area, Including San Francisco, Marin County, and San Mateo County

Sure Roofing provides commercial waterproofing services throughout the Bay Area for office buildings, warehouses, retail properties and industrial facilities. We understand how local climate conditions affect waterproofing system selection and apply that knowledge to every project. Schedule your free estimate today.

Frequently Asked Questions

Still have questions? Take a look at the FAQ or reach out anytime!

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Sure Roofing seals around HVAC curbs, condensate lines, fire alarm conduits, and security system penetrations using a detail-oriented approach that protects sensitive components throughout the project. Crews coordinate work with building operations to minimize disruption. Every penetration point is addressed individually to prevent water entry.
Sure Roofing addresses waterproofing challenges on commercial roofs that residential properties do not present, including HVAC curbs, pipe penetrations, skylights and parapet wall flashings. These are common failure points on commercial buildings. San Francisco's persistent fog and marine moisture accelerate deterioration at these locations, making proper sealing critical to long-term performance.
Sure Roofing's silicone-based waterproofing systems come with a 25-year NDL manufacturer's warranty with proper application. Longevity depends on the underlying roof condition, quality of surface preparation and exposure to foot traffic and weather. Sure Roofing assesses your specific situation and recommends systems matched to your performance expectations.