JH3 Company is a licensed, full-service roofing company equipped and trained to work on commercial flat roofs anywhere in Ventura County, CA, or select cities across Santa Barbara County and Los Angeles County.
We are certified and insured to install, replace, recover or repair all of the following:

Coatings
asphaltic roofs; single-ply roofs; built-up roofs

Modified Bitumen
self-adhered; torch; mop; cold-applied

Single Ply
fully adhered; mechanically attached; self-adhering, heat-welded
Whether you are a building owner, facility manager, contractor or architect, our roofing team will help you select the best solution that translates into big energy savings. For example, if your existing roof does not require a tear-off or new insulation, we would recommend an elastomeric/silicone/urethane coating only. If you have water ponding on your flat roof, we have a solution that may not require a full roof replacement.
JH3 also installs, replaces and removes skylights and sun tunnels on any flat slope roof.
Portfolio of Title-24 compliant Cool Roof installations
Commercial Buildings
View our collection of pictures involving the application of white elastomeric and urethane roof coatings, modified bitumen and single-ply roof systems. These Title-24 compliant cool roofs save money on energy costs because their highly UV reflective white surface reduces the amount of energy required to cool the building.
Before vs After
7 Tips how to manage your building’s flat roof
- Use life-cycle costing to assure maximum roof service life.
- Adapt a pro-active roof maintenance protocol.
- Perform annual or semi-annual roof inspections and repairs.
- Allocate for routine preventative maintenance, starting from the first year..
- Plan for a more extensive remedial restoration project.
- Track all collateral building damage and incidental costs associated with leaking roofs.
- Show management how past collateral damage costs exceed the cost of implementing a roof maintenance and management program.
source: GAF reference manual (PDF)
Premium products exceeding industry standards
JH3 is not vested in a single roofing technology, membrane or manufacturer. We use a broad range of product lines and accessories with a proven track record of protection from heat aging and UV degradation from the list of manufacturers below. We choose which application is right for your building because every roof is unique and requires an equal measure of attention.
- Carlisle
- CertainTeed
- Dibiten
- ER Systems
- FiberTite
- Firestone Building Products
- GAF
- Henry Company
- Hunter Building Products
- Tremco
- Tropical
- USG
- Versico
- WeatherBond
- Western Colloid
Choose JH3 To Work With You
Choosing the right solution for a commercial flat roof can be complicated because there are many roof membrane options available and your building may have its own unique set of requirements. Not to worry. A JH3 representative will spend the time and effort to help you decide what’s best for you based on your investment objectives, location, aesthetics, usage and other decision making factors.
Free Flat Roof Consultation
To learn more about how our JH3 Company can properly build or repair your commercial flat slope roof, call us toll free at (888) 550-8856 or click the button below to complete our form online. Regardless of your decision-making stage, we’d love to hear from you and are happy to provide a second opinion and a no-obligation written estimate.