Sidewall End-wall roof extensions are 1500mm wide, by extending the End Bay purlins beyond the end-wall steel line. They can accommodate and optional soffit panel without the need for additional framing.

Sidewall Roof Extensions are 1500mm wide they are made of 200mm deep hot rolled or built-up member, and 200mm flush eave channels and purlins making it possible to add an optional soffit panel without the need for additional framing.

A mezzanine can occupy the full area or just partial area of the building. It is an elevated flooring system located inside the outer steel of a PEB. The mezzanine framing is normally connected to the main rigid frame columns for lateral stability.

A typical mezzanine structure consists of:

Is a structural frame, mounted on top of the roof. It is designed to support heavy roof accessories such as A/C units, water tanks and others. It is comprised of pipe, stub columns and structural framing made of built-up or hot rolled section. Grating is used and sometimes handrails are required.

End-walls are constructed with either Rigid Frames or more economical Bearing Frames (a PEB standard). (End-wall girts frame to corner columns and wind columns either in a flush manner or in the more economical by-pass manner). BSI Steel Bearing Frames and Wind Columns are manufactured from built-up I-sections instead of the less robust C-sections used by other PEB manufacturers in this region.

Secondary structural members include roof purlins, wall girts, eave struts, C-sections, flange braces, gable angles and base angles. Purlins, Girts, Eave Struts and C-Sections (used as base channels and as door jambs and headers in framed openings of Double Sliding Doors and Roll Up Doors) are Cold formed from 345mm wide galvanized coils in thicknesses of 1.5, 1.75, 2.0, 2.25 and 2.5mm. They are made from material that conforms to ASTM A653M Grade SS: 340 Class IG90 and are designed in accordance with the 2002 Cold formed Steel Design Manual, published by “The American Iron and Steel Institute” (AISI).

A common practice in the PEB industry is to connect the sidewall girts to the sidewall rigid frame columns in a by-pass condition and to connect the end-wall girts to the end-wall wind columns in a flush condition. The by-pass approach is more practical, even in end-walls, because it allows cables, pipes, etc. to be laid within the 200mm girt line all around the building. It also allows for a better construction of partial height block-walls (normally 2.25 to 3.00m high) which are very common in this region.

Single skin Roof and Wall Panels manufactured by BSI-STEEL are rolled formed from either 0.5 mm (Nominal) thick AluZinc coated steel (AluZinc is an Aluminum I Zinc alloy) which conforms to ASTM A 792 M Grade 345 classes having a minimum yield strength of 34.5 KN I CR 2 with Zinc I Aluminum coating conforming to AZ 150 (or optional). The coating is achieved by hot deep process of 55% aluminum and 45% zinc alloy. 0.7 mm (nominal) thick AluZinc coated steel is optional available in both mill finish and in pre-painted finish (in four standard colors).

Interior liner panels, partition panels, fascia panels and soffit panels are made using the same profile in 0.5 mm frost white AluZinc coated steel, 0.7mm pre-painted Aluzinc is an option that may be supplied, in any BSI-STEEL Standard color, for large projects.