All About Metal Roofing



· 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 properties

Sheet Materials

· stainless steel

· copper

· zinc

· aluminum-coated alloy or zinc coated

Lifespan for residential roofing

· 50 plus years or up to 100 years depending on the type


· 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 type


· 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 shingles

Getting 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 excesses

On Remodeling

· Metal tops can be installed over existing roof, no need to remove the old one


· 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 combined

Material 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 entrepreneurs


· ceramic coatings

· nanotechnology solar reflective coatings


· 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.


Source by Karina Yonson