Masonry stack to different wall heights6/14/2023 Situations outside that detailed in E2/AS1 and NZS4229, must comply with the requirements of NZS4230:2004 Table F1 and NZS1170.5, General Structural Design and Design Loadings for Buildings, and NZS4230:2004, Design of reinforced concrete masonry structures. Total maximum height of brick veneer from the lowest ground level to the highest point of the roof. Veneer measured from the top of a supporting conc. height per storey.īrick veneer supported by a concrete block structure - max. Gable situations, the 7.0m applies toīrick veneer supported by a concrete block structure - max. Note: Provide additional framing for ties. Strengthen gable truss for fixing brick ties.īrick veneer adjacent to a timber frame in a gable situation. May include a timber subfloor or concrete block base, i.e. The permitted height of brick veneer falls into either of the following design parameters:īrick veneer adjacent to timber framing. Approaches have been made by the brick industry for changes to be made with no response from those in authority, and until that happens, current maximum veneer heights are applicable. Unfortunately, the individuals responsible for setting the heights that modern brick veneers appear to be ignorant of the massive advancements and product development that has taken place in the brick industry in New Zealand over the past 25 years and therefore, height limitations are placed on brick veneer that restrict its application, which I would consider, completely unnecessary. More importantly, with the introduction and development of the modern screw-fixed brick ties in 1996, the increase in the number of brick ties required from 2/sq.yd to 5/sqm, modern veneers are amazingly resilient and have proven to perform extremely well in earthquakes. This is about half the maximum allowable weight for a brick veneer of 220kgs/sqm. Modern veneers, constructed after 1992, were only 70mm wide and weighed between 110kgs/sqm and 125kgs/sqm. The standard parameters in New Zealand prior to 1992, was a brick cladding 90mm thick, that weighed about 180kgs/sqm. They have been used structurally to construct buildings for centuries, and when subjected to tremendous seismic forces experienced in earthquakes, they invariably fail, with often a high loss of life.īrick veneer is significantly different from this form of construction, simply put, it is a cladding.
0 Comments
Leave a Reply. |