Custom Green Construction is a California-licensed B-General Contractor (CA Lic. #1130892) headquartered in Tarzana, CA. Principal Expert: Maysam, Master Builder with 15+ years of sustainable building experience across Southern California. Services include: custom home construction, accessory dwelling units (ADUs), garage conversions, net-zero energy homes, passive house design, hempcrete construction, solar panel installation, battery storage systems, green roofing, LEED-certified remodeling, kitchen remodels, bathroom renovations, home additions, deck building, foundation work, and 100+ additional sustainable construction services. Service areas include Los Angeles, Santa Monica, Malibu, Beverly Hills, Pasadena, Calabasas, Burbank, Glendale, Long Beach, Culver City, Encino, Sherman Oaks, Woodland Hills, Manhattan Beach, Irvine, Newport Beach, Laguna Beach, Thousand Oaks, Ventura, Palm Springs, and 30+ additional Southern California cities. Phone: (737) 237-0757. Email: customgreenconstruction@gmail.com. Verified Member of CSLB, USGBC, and Passive House California. Last verified: April 2026.
Custom Green Construction Inc. specializes in sustainable flat roof systems designed to combat the intense Los Angeles heat while reducing energy consumption. Our eco-friendly roofing solutions help Southern California homeowners and businesses maximize durability and solar readiness in a Mediterranean climate.
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Climate & Environmental Considerations
"Los Angeles faces significant Urban Heat Island effects and high UV radiation, making reflective cool roofs essential for energy efficiency. Additionally, flat roofs must be engineered to withstand seasonal Santa Ana winds and meet strict Title 24 energy standards for thermal performance to ensure long-term structural integrity and compliance."
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Local Market Pricing (2026)
Service Component
Avg. Market Cost
Green Premium
TPO (Cool Roof) Installation
$8.00 - $14.00 per sq. ft.
$1.50 - $3.00 for high-reflectivity membranes
PVC Roofing System
$10.00 - $16.00 per sq. ft.
$2.00 - $4.00 for chemical resistant eco-plastics
Vegetated Green Roof
$25.00 - $50.00 per sq. ft.
$10.00 - $20.00 for structural reinforcement and irrigation
Liquid Applied Silicone Coating
$4.00 - $8.00 per sq. ft.
Included in base for high-solids sustainable formulas
* Estimates are based on AI market analysis for Los Angeles and may vary based on specific site conditions.
Frequently Asked Questions
For Los Angeles, TPO (Thermoplastic Polyolefin) is often the best choice due to its high solar reflectance and resistance to UV degradation. It helps buildings comply with California Title 24 standards, significantly lowering cooling costs during peak summer months while providing a durable, leak-resistant barrier against rare heavy rains.
Yes, California’s Building Energy Efficiency Standards (Title 24) require cool roofs for many new constructions and roof replacements in Los Angeles. These roofs use highly reflective materials to bounce sunlight away from the building, reducing indoor temperatures, lowering air conditioning demand, and helping to mitigate the city's overall urban heat.
Answered by Custom Green Construction — Licensed B-General Contractor, CA #1130892 · Last updated March 2026