Spotted Gum is considered a bushfire resistant timber up to and including BAL-29 while Forest Red Gum is rated for BAL categories of 12.5 and 19. * In the Australian Standards AS 3959, a home may experience different bushfire intensity levels. Spotted Gum KD F27 Class 1 timber is on the top of the list in terms of durability, great for beams or rafters for your pergola. Wood Solutions Guide 04: Building with Timber in Bushfire-prone Areas is available for free at. After talking with my local trade paint shop and showing them photos we thought it was mould on the boards. Based on the Building Code of Australia’s Early Fire Hazard indices, its spread of flame and smoke develop indexes sit low at 3 in a scale of 10. Description. Therefore, glue laminated timber will not twist or spall in a fire event. masonry or min 9 mm fibre cement, NSW building regulations do not recognise deemed-to- satisfy construction solution within this BAL. Such failures often occur in a progressive or cascading manner resulting in the loss of a large section of the roof envelope. Jack pulling out some beautiful F27 Spotted Gum Kiln Dried Timber perfect for Exposed Rafters, Bearers, Decking, Handrails and Balconies, Measuring 190 x 45 and dressed with pencil round edges. Beam 18 is made of Victorian Ash. The external use of building materials in houses built in declared bushfire prone areas is controlled under the Building Code of Australia (BCA) Parts P2.3.4 and 3.7.4. An external horizontal surface or a ledge includes decks, carport roofs, awnings and similar elements or fittings having an angle less than 18 degrees to the horizontal and extending more than 110 mm in width from the wall or window or door. The procedure involved wind tunnel tests, connection tests and structural analysis. As the world increasingly turns to timber in construction for the many benefits, there remains one characteristic of timber that needs further understanding. Our building que varies depending on the time of year, contact us to check our schedule. Capra Timber is only the best timber retailer in all of Sydney, Will be used in accordance with our Privacy Policy, Hi! Where there are restrictions on the building materials, timber is permitted in many applications as the tables on pages 3 through 6 'Simplified Bushfire Standard Complying Timber Construction in NSW' show. Stunning for a feature wall. The table below incorporates the requirements of both AS 3959 Construction of Buildings in Bushfire-prone Areas 2009, as well as Planning for Bushfire Protection - Addendum: Appendix 3, NSW Rural Fire Service - Planning for Bush Fire Protection. Every piece of timber is hand selected and chosen to ensure that the end product is outstanding each and every time. Specimens consisted of 200 mm lengths of batten and rafter material nailed together with two 75 × 3.37 mm plain shank bullet head nails. Rochedale, QLD 4123 Bushfire-resisting timber and sarking required between cladding and framework. Cross sectional dimensions of the battens and rafters were 38 × 75 mm and 100 × 50 mm respectively. As the assessed threat increases, so do the restrictions on the building materials that may be used. Compliance with Australian Standard AS 3959 Construction of Buildings in Bushfire Prone Areas is 'deemed to satisfy' the BCA requirements for Class 1 Buildings along with the NSW Rural Fire Services - Planning for Bush Fire Protection 2006. theatres, public halls. Spotted gum is one of Australia’s premium native hardwoods with a striking appearance and a high degree of natural durability and strength, making it an ideal timber for a variety of structural, exterior and interior applications. When timber is exposed to the heat of a fire, it goes through a thermal breakdown process and a layer of charcoal forms on its surface.