For some homes, roof renovation is necessary before solar panels can be installed. Due to deferred maintenance, aging properties, or other factors, roofs may no longer be suitable for solar panel installation. Finding the right roofer can be quite a task. With this checklist, we’re here to help.
Zonnefabriek does not have direct partnerships with roofing companies, but we can share our expertise on finding the right partner. There are several certifications and quality marks a roofer should ideally have, which are outlined below. Roof renovation may be necessary before panel installation, especially for flat roofs, which must support up to 65kg/m².
What to Look Out For?
Similar to InstallQ—the certification for the solar panel industry—there is also a quality mark for roofers. DAKMERK is the leading certification for flat roofs. Roofers affiliated with this certification undergo independent inspections during their work and have their projects assessed in advance. With this certification, a 10-year waterproof guarantee is provided, and damages are covered by a warranty fund in case the roofing company goes bankrupt.
Vebidak is the industry association for bituminous and synthetic roofing companies. As an industry organization, it actively advocates for the sector and engages its members in its activities and services. Companies affiliated with Vebidak meet criteria related to continuity, business operations, and entrepreneurship.
The KOMO process certificate is a document that confirms the final result of a process complies with predefined specifications. A roofer must be certified according to BRL 4702. This certificate ensures that the roof construction is carried out correctly and with the right materials. Always check whether the company you have selected holds a KOMO certificate.
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Quality Mark
Similar to InstallQ—the certification for the solar panel industry—there is also a quality mark for roofers. DAKMERK is the leading certification for flat roofs. Roofers affiliated with this certification undergo independent inspections during their work and have their projects assessed in advance. With this certification, a 10-year waterproof guarantee is provided, and damages are covered by a warranty fund in case the roofing company goes bankrupt.
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Industry Association Membership
Vebidak is the industry association for bituminous and synthetic roofing companies. As an industry organization, it actively advocates for the sector and engages its members in its activities and services. Companies affiliated with Vebidak meet criteria related to continuity, business operations, and entrepreneurship.
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KOMO Process Certificate
The KOMO process certificate is a document that confirms the final result of a process complies with predefined specifications. A roofer must be certified according to BRL 4702. This certificate ensures that the roof construction is carried out correctly and with the right materials. Always check whether the company you have selected holds a KOMO certificate.
Stay Vigilant
In addition to checking for certifications and industry affiliations, it is crucial to stay alert when selecting the right company. Unfortunately, every market—including solar panels and roofing—has its fair share of unreliable providers. Always verify on the official websites of industry associations and certification bodies to confirm that a company is genuinely accredited, even if they claim so on their website. Being diligent can help eliminate many questionable options.
Roof Renovated?
Once the renovation is complete and you're ready for a solar panel quote, contact us again. We’ll visit you personally to discuss your needs and assess the possibilities your roof offers.
