b'STEP 1DETERMINING CORRECT WIND SPEEDStep 1.3Shielding DeterminationThe shielding effect of established trees and established building structures will have an effect on the upward wind pressures. With the exception of regions C & D where trees are not considered a shielding element. The 3 shielding classifications are:-Full Shielding At least 2 rows of housing or similar size permanent structures surround the intended construction site. In Regions A & B, heavily timbered areas provide full shielding as FS long as they are within 100 metres.Full shielding is only possible for houses within Topographical Classes T0, T1 and T2. The Full Shielding classification is only applicable to suburban developments with 10 or more houses and or similar sized structures, per hectare. The effects of roads or other open spaces within a distance of 100 metres in any direction are exempt.Partial Shielding Partial shielding is only possible for houses within Topographical Classes T0, T1,T2 and T3.PS To qualify there is a requirement to have at least 2.5 houses per hectare or equivalent structures situated upwind of the intended building location. This is typical of an acreage estate or housing based at the 2nd row from open water, abutting parklands or airfields.No Shielding This would be houses located on the edge of housing estates, the side of open NS water, airports, sporting fields and large open parklands.10 11Delta Panels Pty.Ltd. ABN: 11 147 861 292A: 731 Boundary Road, Richlands, Qld 4077 Version Date: P: +61 7 3271 2170 E: info@deltapanels.comW: www.deltapanels.com 08.05.2023'