FAQ
FAQ about the product
1/
How far apart should solar roof hooks be placed ?
Generally, the first and last roof hook must be within 0.2m of the end of the mounting rail. The distance between the roof hooks should take many factors into account and the beam distance plays a decisive role as the hooks usually needs to be nailed to the beam.
2/
How high should solar panels be off the roof?
Higher off the roof will tend to have better airflow and keep the panels cooler. Cooler panels will generate more, typically something like 0.4% per deg C. As long as you don't mind the look, and the wind loads are accounted for in the rack design, higher is fine.
FAQ about company
01 Q: Do you have your own factory?
A: ZIYUAN has own factory with more than 100 skilled and experienced workers the production line is strictly in accordance with high standards and attach great importance to quality control and inspection.
02 Q: Do you have an experienced design team?
A: Of course,our first-class production engineers,technicians and R&D team offer innovative design and reliable solution to customers based on more than 8vears of experiences.
03 Q: Do you have any experience in OEM?
A: Yes, ZIYUAN has provided OEM service design service and buyer label service for more than10 years.
04 Q: Have your products been certified?
A: Yes the products of ZIYUAN have been certified by ISo, sGS, TUV and AS/NZS1170.2
05 Q: How long is your delivery time?
A: It depends on actual order quantity and your special requirements.Generally, it will be 1-2weeks.
06 Q: How is your payment term?
A: If total amount is less than US$5000, we need 100% in advance; if total amount is more than US$5000, we need 30%T/Tin advance and balance before shipment. Other payment term can also be negotiated based on actual.
