Profile: Zenith Staybrite Ltd provides windows, doors, conservatories, porches & canopies, roofline, flatroofing, gargage doors, driveways and kitchen products. Our casement windows are available in many combinations of fixed panes and opening casements. It features multi-chambered UPVC frames, weather seals & double glazing units that improve noise and thermal insulation. Our roofguard EPDM is safe to install using cold applied adhesives and eco friendly materials. It is an ideal solution for all flat roofs and for renovating veranda or balcony roofs. Patio & balcony flat roofs are also available in concrete and rubber paving or timber decking.