Residential Flat Roof Service

flat roof with white elastomeric coating

JH3 Company is a licensed, full service roofing company servicing residential flat roofs in Ventura County, Santa Barbara County and Los Angeles County.

We are certified and insured to install, replace. recover or repair all of the following:

elastomeric coating


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

modified bitumen

Modified Bitumen

self-adhered; torch; mop; cold-applied


Single Ply

fully adhered; mechanically attached; self-adhering, heat-welded

Our roofing team will help you select the best homeowner solution that translates into big energy savings. For example, if your existing house roof does not require a tear-off or new insulation, we would recommend an elastomeric/urethane coating only.

JH3 also installs, replaces and removes skylights and sun tunnels on any flat slope roof.

Portfolio of Title-24 compliant Cool Roof installations

Residential Homes

View our collection of pictures involving the application of white elastomeric and urethane roof coatings, modified bitumen and single-ply roof systems throughout the counties of Ventura, Santa Barbara and Los Angeles. 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

Before Flat Roof Coating
After Flat Roof Coating

(slide button left or right to compare before vs after)

Before Flat Roof Coating
After Flat Roof Coating

(slide button left or right to compare before vs after)

Tips how to manage your home’s flat roof

  1. Use life-cycle costing to assure maximum roof service life.
  2. Adapt a pro-active roof maintenance protocol.
  3. Perform annual or semi-annual roof inspections and repairs.
  4. Budget a minimum of $.05 per square foot per year for preventative maintenance (beginning in year #1).
  5. Budget $0.25 per square foot for a more extensive remedial restoration.
  6. Track all collateral home damage and incidental costs associated with leaking roofs.
  7. 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 residential 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 home 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 flat roof can be complicated because there are many roof membrane options available and your house 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.

Select your county location for a free estimate to learn more. No other local roofing company can match our skill and experience how to properly build or repair a flat slope roof.

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Schedule Visit