It will depend on the model.
Deluxe Reflective Roller Blinds are installed at the top of the window reveal. They are operated by a continuous loop chain at one side, and roll down the window inside the glass. Each blind sits in two brackets, each of which is held in place by two screws. they can be face or ceiling fixed.
Reflective Cord Actuated Blinds are installed, usually under glass roofs or sloping windows. They are on a spring loaded roller and are drawn up or down the slope of the glass by a single cord which is fitted to the middle of the lath. The cord then runs through a series of pulleys to a cleat. The cleat holds the blind in tension against the spring loaded roller.
Reflective blinds for Skylights are very similar to the cord actuated model. The blind is Inside a cassette which is fastened to the internal edge of the skylight close to the glass.
Reflective Blinds are usually held in place with screws, but we do use a range of sophisticated fastenings for more unusual installations.
Marine, Boat & Ship Blinds are installed above the window and are operated by one of two cord systems we offer or by simple D Handles held in place by a hook.