Next generation FRP
Australian conditions are challenging for most structural building materials. Steel can have surface treatments such as galvanised coatings, but in coastal areas this will only provide a limited number of years of protection and we all know cold-gal edge coatings are going to rust very quickly. Stainless steel is prohibitively expensive for load bearing beams, while aluminium trusses typically require higher profiles and specialised manufacturing for each project application, with the added engineering certification costs. Timber beams such as LVL are heavy to lift and do not suite exposed applications where moisture can damage the laminates.
Fibre Reinforced Polymer profiles are about 1/4 the weight of their steel equivalent, have excellent fire ratings and provide a genuine alternate for many new projects.