Specifications· light weight · portable · durable · fire resistant · spark resistant · wind resistant · hail resistant · high strength to weight ratio · design flexibility - comes in large sprung curves and rolled bull-nose shapes · can be recycled without losing valuable propertiesSheet Materials· stainless steel · copper · zinc · aluminum-coated alloy or zinc coatedLifespan for residential roofing· 50 plus years or up to 100 years depending on the typeAdvantages· the design is flexible · can be installed over open frames or your existing roof · reduces air-con usage by 20-30% · labor efficient · high energy efficiency especially for Kynar finished roofs · very minimal maintenance · 80% of the materials is recyclable · can be a DIY depending on the typeDisadvantages· for curved roofs, there is high level of noise, but few occurrence were recorded · dissimilar metal can cause rapid corrosion · costs about double the price of traditional shinglesGetting the roof· metal roofing is ordered per piece whether in sheet, trim or ridge form · sheets can be ordered pre-cut according to desired size · proper estimation is required to avoid excessesOn Remodeling· Metal tops can be installed over existing roof, no need to remove the old oneApplication· it's incredible durability makes it a versatile building material · it's lineup of flexible profile and design makes it also ideal for residential structures · can be used as wall covering · for a modern and unique look, shapes and colors may be combinedMaterial types· corrugated galvanized steel - wrought iron steel coated with zinc · zincalume - a blend of zinc, aluminum and silicon-coated steel · Metal tile sheets - usually painted or stone-coated steel · stainless steel - comes in roll forms· aluminum - on of the most durable materials but also one of the most expensive · copper - usually used for smaller areas such as entrance ways · stone coated steel - these are panels made from zinc/aluminum coated steel and with acrylic gel coating· Inverted Box Rib (IVR) - used mainly in the South African markets because of the low cost and its square roofing; very ideal for beginning entrepreneursCoatings· ceramic coatings · nanotechnology solar reflective coatingsMaintenance· For Utility Grade, re-coating is required once the surface finish has faded or corroded. · For stainless steel, zinc or copper, roofing maintenance is a result of installation mistakes. · Metal roofs with Kynar finish normally don't require maintenance. In existence for about 50 years now, this type of metal roof is considered as a lifetime product.
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