Never walk on solar panels. They are fragile and can cost you a lot of money if you break them. If you have to walk on them, don't walk on the ends since these are the most fragile areas.
One of the nice features of using solar energy is that it not only saves you money, but it is also totally renewable, soundless and produces no pollution. This is why it is such a great option for both private residences, and large businesses to be more environmentally friendly.
Fool proof system for water proofing flat roofs.
Before you pull the trigger and buy a system, take a look at how long the manufacturer guarantees the product for. You want a fairly long warranty because the system will have to pay for itself over time and help you begin to generate a profit. Therefore, make sure the warranty is for at least 25 years.