Green roofs layer vegetation over waterproof membranes to provide natural insulation, stormwater retention, and extended membrane lifespan for commercial and select residential properties.
Bakersfield Expert Roofing offers professional green roof installation in Bakersfield, CA with over 20 years of experience handling residential and commercial roofing projects.
A green roof assembly consists of a root-resistant waterproof membrane, drainage mat, filter fabric, engineered growing media, and plant material selected for your roof's sun exposure and structural capacity. We design and install both extensive systems with 2-6 inch media depth for low-maintenance sedum coverage and intensive systems with deeper profiles for diverse plantings. These systems reduce rooftop temperatures, decrease stormwater runoff, and protect membranes from UV degradation and thermal cycling.
Extensive green roofs use lightweight growing media and drought-tolerant sedum species that require minimal irrigation and maintenance. Intensive systems support grasses, shrubs, and small trees with deeper soil profiles and irrigation infrastructure. We engineer both types to match your structural capacity, maintenance budget, and performance goals.
STEP 1
We assess roof load capacity for saturated media weight, verify slope and drainage adequacy, and identify parapet heights and edge conditions. Structural reinforcement is specified if existing framing cannot support the added dead load.
STEP 2
Waterproof membrane is applied with welded seams and tested for watertightness. Root barrier, drainage mat, and filter fabric layers are installed in sequence. Perimeter drains and overflow scuppers are integrated with the building's existing stormwater system.
STEP 3
Engineered lightweight media is placed to specified depth and graded for proper drainage. Plant material is installed as plugs, cuttings, or pre-grown mats depending on system type. Drip irrigation is connected for establishment period watering.
The membrane layer is the most critical component. We install hot-applied rubberized asphalt or thermoplastic membranes with integrated root barriers that prevent plant roots from penetrating the waterproof layer. All seams are welded and flood-tested before growing media is placed.
Complete green roof assemblies from structural assessment through planting, with no subcontractor coordination needed.
Membrane systems flood-tested before media placement to verify watertight integrity at every seam and penetration.
Plant species selected for Kern County conditions including drought tolerance, heat resistance, and low maintenance requirements.
Stormwater retention calculations and documentation provided for LEED certification and municipal compliance requirements.
Not automatically. We start with structural review, load planning, and waterproofing design to confirm the building can support growth media and retained moisture safely.
We install multi-layer protection including root barrier and drainage components above the primary waterproof membrane to prevent puncture and moisture migration.
They can be, with drought-tolerant planting plans and irrigation strategy. System design is tailored for heat, seasonal rainfall patterns, and maintenance expectations.
Talk with our roofing team today for a detailed estimate, project timeline, and material guidance tailored to your property.
