Palram Balance 8x12 Silver Greenhouse has a twin wall polycarbonate on the roof, which insulates and protects the top from direct sunlight, and clear side glazing which looks like glass and provides light transmission of over 90%. The polycarbonate glazing is 100% UV protected so it doesnt turn yellow, virtually unbreakable and has no sharp edges. Aluminium frame and comes with clear polycarbonate glazing. 4mm twin-walled polycarbonate roof panels to aid insulation during winter and provide shade during summer. Clear polycarbonate glazing wall panels. Integral rain gutters for water collection. Integral base. Base included. Base size W242.5, D366cm / W8ft D12ft . Hinged, lockable doors. H229, W242.5, D366/cm/W8ft D12ft. Weight 72.5kg. Manufacturers 5 year guarantee.