Illustration of waterproofing method for photovoltaic panel installation

Can solar roof attachments cause water intrusion?

Installing solar roof attachments requires drilling dozens of holes through roofing material, making any roof vulnerable to water intrusion. Given this reality, it’s important to understand how water intrusion (and the resulting building damage) occurs and ways installers can prevent it from happening.

What are photovoltaic panels & how do they work?

Photovoltaic panels, or solar panels, are the most crucial component of a solar power system. They are responsible for converting sunlight into direct current (DC) electricity through a process called the photovoltaic effect. Solar panels are made up of many individual solar cells, which are usually made from silicon, a semi-conducting material.

How do roof mounted PV solar panels work?

Roof mounted PV Solar Panels are typically supported by racking systems which come in two basic forms. The first is a mechanically fastened system and the second, the more common of the two, is a ballast restrained system. The mechanically fastened system penetrates through the roofing membrane and can be used in pitched roofs and flat roofs.

How much does it cost to waterproof a rooftop solar system?

Improperly waterproofing a rooftop solar system is expensive. The labor costs to repair smaller leaks often range between $500 and $1,000. If the problem is bigger, flashed mounts or the whole roof may need replaced.

What are photovoltaic panels?

Photovoltaic (PV) panels are devices that convert sunlight into electrical energy using semiconductor materials. This process is known as the photovoltaic effect. PV panels are an essential component of solar power systems and are increasingly being deployed for both residential and large-scale power generation purposes.

How do you prepare a roof for a solar panel installation?

Preparing the Roof: Inspect the roof structure to ensure it can handle the weight of the PV panels and mounting equipment. Remove any debris or obstacles that may affect the installation or sunlight exposure, and clear the area around the roof where people will work.