Portal Frame Roof Detail

Typical detail for a steel frame ridge apex roof system with sandwich panels roof ridge flashing support on galvanized z profile purlins.

Portal frame roof detail.

Although the use of steel portal frames is well established in the uk there is no publication which defines best practice in this form of construction. The end frame gable frame can be either a portal frame or a braced arrangement of columns and rafters. A portal frame building comprises a series of transverse frames braced longitudinally. It has become the most common structural form in pitched roof buildings because of its economy and versatility for a wide range of spans.

Within this major market sector the steel portal frame has become the most common structural form in pitched roof buildings because of its economy and versatility for a wide range of spans. Mar 24 2016 steel hangar portal frame roof eaves beam detail. Steel roof rafter is illustrated with an ipe profile steel section. In countries where this technology is highly developed the steel portal frame is the dominant form of structure for single storey industrial and commercial buildings.