Galvinized Metal Roof Vs Painted Steel Roof

Tin roofing is an often requested item by enthusiasts around the united states and canada.

Galvinized metal roof vs painted steel roof. If crawling around on a metal roof in the hot sun does. Tin itself is an element like copper or zinc. Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal. It s also utilized in drain pipes and siding.

Aluminum roofing comes with paint finishes as well and have their own warranties. Galvanized steel also has many advantages. Underneath a painted metal roof there is a galvalume coating. The metal roofing alliance recommends g 90 galvanized steel for roofing which has 90 ounces of zinc per square foot.

The big difference is that aluminum will oxidize chalk if exposed to the elements but the aluminum will not look unsightly and continue on with a rapid oxidation process deterioration rust as steel will. Galvalume metal roofing system properties. Details about galvanized metal roofing are at galvanized steel roofs. That s the normal length of warranty on kynar 500 paint finish.

It s also productive steel that can be applied to many different applications. Paint adheres better to galvanized steel than to galvalume so it requires repainting less often. In fact tin is an incredibly rare and unused metal for roofing. Longevity in the right environment when galvanized metal roofing or wall systems are installed in the right environment they ve been known to last decades.

With kynar 500 or hylar 5000 paint finish or its equivalent you will not have to paint over your steel roof for at least 30 years. Also see complete list of types properties of metals used in roof systemsfor more about galvanized steel roofing. That coating isn t as dense. It is a trademarked name but many people use it as a generic term to describe a metal roofing product consisting of steel coil coated with a metal alloy.

For one it is inexpensive. Typical g90 galvanized metal roofing can cost anywhere from 5 00 to 13 00 per square foot and can fluctuate further based on thickness color installation costs location and more. Both types of steel can be painted to improve durability. Paint finish warranties are key to understanding the expected longevity of a galvanized or galvalume metal roof.

With that being said the painted metal roof has a 40 year warranty on the paint and 30 year fade warranty. That alloy is 45 zinc and 55 aluminum and looks similar to galvanized steel but the visible crystals are smaller and close together giving it a smoother appearance. The term is used interchangeably with metal roofing steel roofing or galvanized steel.