A foam roofing underlayment is provided with a reinforcement membrane having an array of fastener elements for engaging fastener elements on a flexible roof membrane. The underlayment is formed by molding foam between the reinforcement membrane and a carrier membrane. The underlayment in secured to the roof using washers having fastener elements for engaging the fastener elements of the flexible roof membrane. An anti-peel flap with fastener elements is provided around the periphery of the washers. A slip sheet is used between the underlayment and the flexible roof membrane to permit accurate positioning of the flexible roof membrane prior to engagement of the fastener elements. The interstices between the fastener elements provide lateral moisture paths to vents in the flexible roof membrane.

A coupling system for use with a solar tracker includes a support rail defining a channel for receipt of a solar module therein, the support rail including an aperture defined therein that is in open communication with the channel and a clamp assembly selectively coupled to the support rail, a first portion of the clamp assembly configured to receive a portion of a torque tube therein and a second portion of the clamp assembly configured to selectively extend through the aperture of the support rail when the clamp assembly is transitioned from a first, unlocked position, to a second, locked position.

An apparatus and method for connecting solar panels to a roof system surface. The solar panels can be formed flexible or non-flexible solar panels that are at least partially attached to a roofing surface by use of a fastener.

A toolless fastening assembly for a solar power system including a first strap portion having a first connector, a second strap portion having a second connector, and a boot buckle extending a buckle distance between a first buckle end and a second buckle end. The first buckle end is connectable to the first connector and the second buckle end is connectable to the second connector. The boot buckle includes a latch lever that is rotatable between a first lever position and a second lever position. Rotation of the latch lever from the first lever position to the second lever position shortens the buckle distance.