Roof Extensions
Sidewall roof extensions beyond the building width at sidewall eaves and are generally a simple continuation of the main building roof slope.
Endwall roof extensions extend beyond the building length at endwall gable and are developed by extending the end bay purlins and eave struts of the main building beyond the endwall rafter.
Standard widths for roof extensions are possible but may require heavier framing or additional structural members.
Canopies
Sidewall canopies are cantilevered rafters attached to sidewall columns at any point below the eave. Endwall canopies are cantilevered rafters attached to the endwall wind columns below the gable.
Canopy widths range from 1500 mm to 3000 mm. Wider canopies are possible but may require reinforcement of sidewall or endwall columns.
Fascias and Parapets
Vertical fascias consist of 200mm deep hot rolled or built-up I-section vertical posts supported by brackets attached to sidewall or endwall columns. Cold-formed 200 mm deep “C” section top and bottom channel girts are flush-framed to the vertical fascia posts. An intermediate “Z” girt is supplied to support a modified valley gutter, when required.
Mezzanine Systems
Mezzanines typically require mezzanine support columns, beams, joists, deck and edge angles. Mezzanine columns are usually placed along the existing main building frame lines. They support the mezzanine beams which in turn support the mezzanine joists. Mezzanine joists are normally oriental parallel to the sidewall. Joist spacing varies from 1000 mm and 3000 mm depending on the mezzanine, deck profile and applied loads.
The mezzanine columns, beams and joists are designed to withstand the mezzanine live load, the weight of a 100 mm thick reinforced concrete slab, and the weight of the deck. Additional dead loads, collateral loads and floor finish loads, if present, must be advised to BETA Steel by the client to be considered in the mezzanine design.