photovoltaic mounting on bitumen pitched roof
PV mounting system for
Bitumen pitched roofs
The METIS mounting system for pitched bitumen and foil roofs
can be installed completely penetration-free
up to a roof pitch of 20 %.
Checklists & brochures
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Frequently asked questions
Bitumen and foil roofs are very popular in many areas. They are comparatively inexpensive and can be laid by the installer. Another advantage is the great flexibility of bitumen and foil roofing: They adapt easily to almost any roof. Combined with their low weight, they are an ideal solution for many pitched roofs.
When installing photovoltaic systems on foil or bitumen roofs, particular care must be taken to ensure that the substructure is installed without penetration. The integrity of the roof cladding also ensures optimum tightness and thermal insulation. It is also important to ensure that suitable building protection mats are used when attaching the photovoltaic system.
Installation without roof penetration due to pure weighting system
Quick and easy installation with Standard rail and clamps
Securing against downslope drift by hanging over the ridge or with individual solution
Project-specific wind suction and displacement calculation for maximum stability
METIS: Innovative PV fastening for pitched roofs with bitumen or foil.
METIS enables completely penetration-free photovoltaic installation on foil and bitumen pitched roofs with an inclination of up to 30 degrees. It has been tested for stability in a WtG-approved boundary layer wind tunnel and aerodynamically optimized for reduced wind loads. A 130 mm wide gap between the rows of modules mounted on edge ensures a low-ballast system.
We use a calculation tool designed by the I.F.I Institute in Aachen to create project-specific wind suction and displacement calculations. The PV mounting is secured against slipping either via the ridge if both sides of the roof are covered or by means of individual solutions. Our tried-and-tested CHRONOS center clamps guarantee quick and easy installation of the modules.
Do you have questions about METIS for bitumen pitched roofs? Write to us!
METIS: Penetration-free PV installation on pitched roofs.
Technical information METIS PV mounting
- Load assumptions according to Eurocode 1 (DIN EN 1991-1)
- Two-layer system structure in cross bond
- Profiles: 1st rail layer: METIS profile
2. Rail layer: ZELOS profile - Module orientation upright, parallel to the roof
- System height without module 61.99 mm
- Weight without module approx. 2.7 kg/m²
- Module fastening: Click in the pre-assembled CHRONOS center clamp set (for all framed modules from 29-51 mm frame height); fastening on the long module side
- Materials: Aluminum EN AW 6063 T66, mill finish; stainless steel A2-70; building protection mat: rubber granulate with/without aluminum triplex foil
Advantages of METIS for bitumen and foil pitched roofs
- Penetration-free installation for bitumen and foil pitched roofs with a pitch of up to 30 degrees
- Project-specific mechanical slip protection
- Wind suction and displacement calculation with a calculation tool developed by the I.F.I. Institute in Aachen
- Testing for stability in a WtG-approved limit velocity channel
- Aerodynamically optimized
- Low-ballast system thanks to 130 mm wide gap between the modules mounted on edge
- Weighting with standard building material (paving slabs)
Advantages of PV on bitumen and foil pitched roofs
- Independence from fluctuating energy prices and fossil resources
- Significant reduction in electricity costs with self-consumption
- Fast amortization due to long service life and low maintenance costs
- Upgrading the property
- Reducing the ecological footprint: photovoltaic systems with an excellent environmental footprint
- Image factor: Photovoltaics as a sign for more climate protection
Planning | Design | Consulting
We are happy to support you in your project planning with our expertise in the following areas:
- Consulting
- On site inspection
- Mounting variants
- Create plans & drawings
- Module assignment
- Shading calculation
- String planning
Statics report
We offer the preparation of structural analysis reports specifically for every PV pitched roof mounting system. This means that you do not have to worry about the stability of the photovoltaic substructure during project implementation.
- Statics report
- Wind suction calculation
- Snow load expertise
- Acceptance certificate
- Damage survey
Assembly & erection
We bring you together with strong partners in photovoltaics. Our experts are very familiar with our METIS mounting system and our other substructures. We support you with:
- Installation of METIS PV fastening on bitumen and foil pitched roofs
- Module assembly
- DC mounting
- Inverter installation
Individual assembly solutions
With us you can choose from a wide range of products. Open spaces, landfills, foil roofs, green roofs, trapezoidal roofs, tile roofs, seam roofs, facade… We have a solution for everything. If something doesn’t fit, it will be made to fit.
Quick assembly
Our mounting systems are child’s play to assemble and require virtually no training time. With our products, you become more efficient on the construction site and can use your capacities wisely. Because time is your most valuable asset.
High quality, safe & inexpensive
Support in any matter
We not only provide you with sophisticated assembly systems, but also with services tailored to your individual needs so that you can concentrate on your core processes. This is where we contribute our many years of experience and our professional network.
Quality & Effectiveness
12 years product warranty
Safety is our top priority. Our systems are put through their paces. Our flat roof mounting system TRITON was tested, for example, in the wind tunnel at the I.F.I in Aachen. Upon request, you will receive project-specific, verifiable structural calculations. You have a 12-year guarantee on our products.
Are you planning a photovoltaic system on a pitched roof with bitumen or foil roofing? Contact us, our experts will get back to you as soon as possible!
