BIPV System

The solar roof system is a building-integrated photovoltaic (BIPV) solution that replaces conventional roof tiles with power-generating ones. Available in three-curved, flat and single-curve profiles, it combines weather protection with clean electricity generation — delivering heat insulation, waterproofing, fire safety and hail resistance in one product. Designed by GreenMore for homes and commercial buildings, the system operates reliably from -40°C to 85°C and is backed by a 25-year power warranty. Why Choose the Hantile Solar Roof System Unlike rack-mounted panels fixed on top of an existing roof, solar shingle are the roof. They install with familiar roofing methods, remove the need for separate mounting rails, and give the building a clean, integrated appearance. Using the latest back-contact cell technology, the tiles reach up to 24.1% module efficiency, while the double-glass structure protects the cells from moisture, impact and long-term UV exposure. Protection and Safety Features Fireproof Class C fire rating for residential roofing safety Waterproof Overlapping profile creates a reliable rain barrier Hail Resistant Toughened double-glass surface withstands impact Wind & Stress Secure fastening, tested mechanical load resistance Lightning Protection Complete grounding and lightning-protection design Roof Profiles and Overall Solutions Three-Curved, Flat and Single-Curve Tiles The range matches traditional architectural styles across Europe, the Middle East and Asia. Curved profiles suit classic and Mediterranean roof lines, while flat and single-curve tiles fit modern, low-pitch designs. Edge and ridge tiles complete the weatherproof finish. Double-Slope Roof Balanced layout for standard gabled residential roofs. Multi-Slope Roof Modular tiling adapts to hips, valleys and complex planes. Edge Tile Details Matching edge and glazed ceramic finishes for a clean look. Related Installed Projects Japan Curved Solar Tile · 25 kW Israel Triple-Arch Solar Shingle · 20 kW Denmark Three-Curved Solar tiles · 15 kW Learn more about application cases → Engineering and Compliance Operating temperature: stable performance from -40°C to 85°C Fire rating: Class C, suitable for residential roofing Mechanical performance: tested load and wind resistance for secure installation Certifications: EN 14782, EN 1090-1, ISO 9001, ISO 14001 and CE Warranty: 25-year power warranty on the solar tiles Frequently Asked Questions Can Solar Shingle replace my existing roof tiles? Yes. solar shingle are designed to be the roof covering itself and are installed using conventional roofing methods. The curved and flat profiles match standard roof dimensions, so structural changes are usually not required. How efficient are solar tiles? GreenMore solar tiles use two cell technologies. Our back-contact crystalline tiles reach up to 24.1% module efficiency, while our thin-film solar tiles deliver around 20% efficiency with strong performance in low light, high temperatures and partial shading. Actual output depends on roof orientation, shading, local irradiance and system configuration. What is the difference between solar tiles and conventional solar panels? Conventional panels are mounted on rails above an existing roof, whereas solar tiles are the roof covering itself. Solar tiles remove the need for separate racking, give a cleaner integrated appearance and are often preferred for new builds and roof renovations. Rack-mounted panels generally have a lower upfront cost and are easier to fit on an existing roof. How much maintenance do solar tiles require? Very little. The double-glass surface is durable and weatherproof, and normal rainfall helps wash away dust. In dry or dusty locations, an occasional visual inspection and gentle cleaning will keep output high. The waterproof overlapping design and secure fastening reduce the need for ongoing roof maintenance. What warranty is provided? The solar tiles carry a 25-year power warranty. When the system includes storage inverters or lithium batteries, those components carry a separate 3-year warranty. Does GreenMore support distributors and OEM projects? Yes. GreenMore supplies system design, technical documentation and remote commissioning support, and offers OEM customization for tile dimensions, colours and electrical specifications to meet local building codes. Planning a BIPV solar roof project? GreenMore provides complete Hantile roof systems for homeowners, distributors and EPC partners. Contact our engineering team → Recommended Products Triple-Arch Solar Shingle Industrial-grade curved tile for large projects and bulk supply. Flat Tiled-Type Solar Tile Waterproof BIPV tile for residential and commercial roofs. Waterproof Solar Roof Tile Durable photovoltaic tile for residential and commercial projects. BC Cell Curved Solar Tile High-efficiency power generation for residential rooftops.

A flexible BIPV roof system uses lightweight, bendable solar modules that are bonded or laid directly onto the roof surface. At roughly 2.5–6 kg/m², the modules are far lighter than conventional glass panels and follow curved, irregular or load-limited roofs with few or no penetrations. This makes them well suited to retrofits and architecturally complex buildings — provided heat dissipation, bonding durability, fire and electrical safety are engineered properly. Flexible BIPV is not a universal upgrade over rigid panels; it is the right choice where low weight, shape adaptability and a non-penetrating installation matter most. At a Glance Lightweight Typically 2.5–6 kg/m², for roofs that cannot carry glass panels. Bendable Follows curved, arched and irregular roof surfaces. Non-penetrating Bonded or laid in place, reducing roof damage and leak risk. Cell options Flexible crystalline, thin-film and emerging perovskite. Advantages and Engineering Considerations Aspect Advantage What to verify Weight & load Much lighter than glass modules; suits load-limited roofs. Confirm roof capacity, wind load and snow load. Shape Bends to curves, arcs and irregular surfaces. Bend radius and bonding flatness affect output and life. Installation Bonded or laid with few holes, less racking. Validate adhesive ageing, de-bonding and wind lift. Building integration Translucent, coloured and curtain-wall options. Transparency and colour can reduce efficiency. Performance Flexible crystalline can exceed 23%; thin-film performs well in low light. Some flexible modules still trail premium rigid panels. Durability No glass, good impact resistance, easy handling. Check weathering, yellowing, delamination and moisture ingress via certifications and warranty. Cell Technologies Flexible crystalline is closest to a conventional generation scenario, with flexible crystalline modules now reaching 23% or higher. Thin-film offers advantages in translucency, colour options and low-light or high-temperature performance. Perovskite shows strong potential for ultra-light, curved and indoor low-light applications, though long-term outdoor stability at scale is still being validated. GreenMore selects the technology based on roof geometry, irradiance and project lifetime requirements. Suitable Buildings Load-limited roofs: older factories, colour-coated steel (corrugated) roofs, light-steel and grid structures, rural buildings, coal sheds and carports. Curved or irregular architecture: arched roofs, spherical or wave-shaped venues, artistic buildings, irregular facades and historic-building renovations. Waterproofing-sensitive roofs: commercial, industrial or residential roofs that should not be drilled or have their existing waterproofing disturbed. Daylighting or aesthetic builds: skylights, glazed roofs, curtain walls, atriums, cultural venues and villa facades. Coastal, humid and salt-spray locations: use well-encapsulated modules and verify salt-mist, damp-heat, fire and electrical certifications. Typical Applications C&I rooftop retrofits Existing roofs that cannot be reinforced, shut down or penetrated. BIPV integration Curtain walls, skylights, eaves, sunshades and balcony facades. Rural pitched roofs Laid onto tiled or sloped roofs with minimal structure change. Mobile & specialised RVs, boats, trucks, vehicles, agricultural sheds, floating systems and portable power. What GreenMore Verifies Before Installation Remaining roof load, wind-lift risk and waterproofing detail IEC / UL certification, fire rating, and salt-mist / damp-heat testing Whether the installation is adhesive, mechanically fixed or hybrid Power warranty, degradation curve and alignment with the service-life target Thermal design to avoid hot spots and output loss from full-coverage laying Future inspection, module replacement and end-of-life recycling path Frequently Asked Questions What is flexible BIPV? Flexible BIPV uses lightweight, bendable solar modules that are bonded or laid directly onto a building surface instead of framed glass panels on rails. The modules become part of the roof or facade, suiting curved and load-limited structures. When should I choose flexible modules instead of rigid panels? Choose flexible modules when the roof cannot support the weight of glass panels, follows a curved or irregular shape, or cannot be penetrated without risking waterproofing. For roofs with ample load capacity and a long service-life requirement, rigid panels often remain the more cost-effective choice. Will bonding modules damage the roof or cause leaks? A non-penetrating bonded installation reduces roof damage and leak risk compared with drilling, but the adhesive must be specified for the roof material and local climate. GreenMore reviews the existing waterproofing, bonding method and wind-lift loads before installation and can combine modules with a compatible waterproof membrane. How efficient are flexible solar modules? Flexible crystalline modules now reach 23% or higher, close to conventional panels, while thin-film modules perform well in low light and high temperatures and offer translucent or coloured options. Output also depends on roof orientation, curvature, shading, ventilation and system design. How durable are they, and what warranty applies? Flexible modules have no glass to break and resist impact well. Long-term performance depends on the encapsulation resisting yellowing, delamination and moisture ingress, so certified products with a documented power warranty and degradation curve should be used. Exact warranty terms follow the module datasheet; where a system includes storage inverters or lithium batteries, those components carry a 3-year warranty. Are they suitable for coastal or high-humidity locations? Yes, when using modules with durable encapsulation and verified salt-mist, damp-heat, fire and electrical certifications. GreenMore checks these requirements for each coastal or high-humidity project rather than assuming a standard module is suitable. Have a load-limited or curved roof? Send us the roof dimensions, structure type and location, and GreenMore will assess whether a flexible BIPV system is the right fit. Contact our engineering team → Related Products Container Battery ESS Stores surplus solar and provides backup power. Energy Storage Converter Bidirectional conversion for PV and storage. Waterproof Solar Tiles Rigid BIPV roofing for roofs with full load capacity. BIPV Solar Tiles Integrated tiled roofing for residential projects.

GreenMore metal roof BIPV replaces the conventional roof itself with photovoltaic metal panels. The modules are laminated onto a metal substrate and joined by a 360° standing-seam lock, so the roof is simultaneously the weather envelope and the power generator — no exposed screws, strong wind-uplift resistance and a clean unified facade. It is the preferred roofing system for new large-span steel-structure factories, warehouses and public buildings that need reliable waterproofing and on-site solar generation in one build. Two Concepts: BIPV and BAPV BIPV integrated PV metal roof BAPV attached to an existing roof The PV module is the metal roof panel, replacing aluminium-magnesium-manganese or colour-coated steel roofing. Standard panels are added to an existing standing-seam roof with clamps and rails; the original roof and its waterproofing stay in place. Best for new builds; the roof and PV share one service life. Fast, non-penetrating retrofit for sound existing metal roofs. Why Choose a Metal BIPV Roof Structural Waterproofing and Wind Resistance Panels are joined with a 360° standing-seam lock based on the equalised-pressure principle, with no exposed fasteners between panels. The composite PV-and-metal roof is itself the waterproof component, achieving a reliable secondary waterproofing grade and resisting strong wind and typhoons — well suited to large-span steel structures. For retrofit projects, clamp-mounted BAPV grips the seam without drilling and preserves the existing roof's waterproofing. Moderate Weight, Better Cooling A finished metal BIPV roof weighs about 8–12 kg/m², far less than a concrete roof. A ventilated cavity beneath the modules dissipates heat better than a directly bonded flexible system, reducing high-temperature power loss and keeping output close to conventional rigid crystalline panels. Strong Fire and Hail Performance The substrate is typically colour-coated steel or aluminium-magnesium-manganese with rock-wool or polyurethane insulation, supporting a high fire rating for factory and warehouse requirements. The glass module surface also resists hail better than flexible membrane materials. Matched Service Life and Easy Maintenance The metal envelope and PV modules are designed to age together, so the roof does not have to be separately replaced midway. With dedicated maintenance walkways, the walkable surface is straightforward to inspect and clean, improving whole-life economics. Integrated Building Performance Insulation, sound absorption and thermal performance can be built into the assembly. Black modules with metal trim give a uniform architectural finish; the system works best on straight roof slopes and can also follow gentle curves. Limitations to Consider Higher cost: more expensive than standard colour-coated steel plus BAPV, so it pays off mainly on new builds, not on retrofitting old steel roofs. Fabrication and transport: panels are custom long boards with lifting and hauling constraints, and on-site seaming demands skilled workmanship — a poorly closed seam will leak. Thermal movement: metal expands and contracts significantly, so sliding T-brackets are required to prevent bulging and deformation. Heavier than flexible BIPV: not suitable for older buildings with insufficient load capacity. Where It Fits Best Recommended New large-span steel factories and workshops Logistics centres and cold-storage warehouses Exhibition centres, rail stations, stadiums, office parks New prefabricated and large commercial buildings Coastal typhoon-prone regions Not recommended Retrofitting old colour-coated steel roofs — use clamp BAPV or flexible PV instead Old buildings with seriously limited load capacity Tight-curvature irregular surfaces — flexible BIPV is preferable Temporary or low-budget buildings Installation Process for New Metal BIPV Roofs Survey and structural check: verify steel purlins, bracket spacing, wind and snow loads; finalise layout, drainage, ridge and gutter details, and electrical routing. Structural base: install purlins and liner, insulation and breathable membrane, then fixed and sliding T-brackets that absorb thermal movement. Panel laying: lift the integrated PV metal panels into place, overlap them and form the 360° standing-seam lock with an electric seamer; fit ridge, gutter and gable trims, end closures and flashings. Electrical work: connect pre-fitted junction boxes, run DC cables in metal conduit through the roof cavity, wire the strings and bond the earthing. Waterproofing re-check: inspect seam quality and gutter drainage, seal foam closures and apply weatherproof sealant at every termination and penetration. Inverter and combiner boxes: install combiner boxes and inverters, connect DC to the inverter and the AC side to the distribution room. Testing and grid acceptance: insulation resistance, EL and array performance tests, lightning-protection re-test, grid commissioning and handover documentation. BAPV retrofit on an existing standing-seam roof is simpler — survey and structural check, clamp aluminium fixtures to the seam, fit rails, secure modules with clamps, route and earth the cabling, then commission. The whole process is non-penetrating and faster. Key Risk Controls Seam quality: inadequate on-site seaming is the main leak cause and should be supervised throughout. Thermal movement: sliding brackets are mandatory; panels must not be fully fixed. Lightning and earthing: the metal roof acts as a natural down-conductor, so modules, clamps and rails must be reliably cross-bonded. Drainage: module layout must not block gutters, to avoid standing water and ice build-up. Corrosion: coastal projects use aluminium-magnesium-manganese substrates and high-corrosion-resistant fittings. Frequently Asked Questions What is metal roof BIPV? Metal roof BIPV is a roof system in which photovoltaic modules are laminated onto metal panels that replace the conventional roof covering. The panels are joined with a 360° standing-seam lock, so the roof both waterproofs the building and generates electricity. What is the difference between BIPV and BAPV on a metal roof? BIPV replaces the roof with power-generating metal panels and suits new builds. BAPV adds standard panels to an existing standing-seam roof using clamps and rails without drilling, which is faster and more economical for retrofits where the existing roof is in good condition. How waterproof and wind-resistant is a standing-seam BIPV roof? The 360° seam has no exposed screws and uses an equalised-pressure design, making the roof itself the waterproof component with strong wind-uplift and typhoon performance. Waterproofing still depends on correct seaming and properly finished ridge, gutter and penetration details. Is a metal BIPV roof better than flexible BIPV? They serve different buildings. Metal BIPV offers stronger waterproofing, better ventilation and cooling, higher fire and hail resistance, but it is heavier and more expensive. Flexible BIPV is ultra-light and bendable for old or curved roofs but is more vulnerable to hail and runs hotter. Metal BIPV is the usual choice for new steel-structure buildings. Can the system be installed on an existing metal roof? If the existing roof and structure are sound, non-penetrating BAPV using seam clamps and rails is usually the better option. Replacing the whole roof with integrated BIPV panels is generally not cost-effective unless the old roof already needs to be removed. What warranty and support are provided? The PV modules carry a 25-year power warranty, and the metal roof and PV are designed for matched service life with appropriate maintenance. Where a system includes storage inverters, PCS or lithium batteries, those components carry a separate 3-year warranty. GreenMore provides structural detailing, installation guidance and commissioning support. Planning a new steel-structure roof? Send us the building dimensions, roof slope, location and wind-load requirements, and GreenMore will design a standing-seam BIPV or BAPV solution. Contact our engineering team → Related Products Waterproof Solar Tiles BIPV tiles for residential and commercial roofs. Commercial PCS Power conversion for large PV and storage systems. Solar Energy System Complete PV systems with optional storage. Container Battery ESS Large-scale storage for surplus solar.