Galvalume Roof House

This make up is 55 percent aluminum and 43 5 percent zinc and 1 5 percent silicone.

Galvalume roof house.

Galvalume was invented by bethlehem steel in 1972. Can a metal roof go over the 3 layers. The previous owner of our house put a 3rd layer of shingles on the roof. Contemporary colonial cape cod style ranch bungalow victorian etc.

The fine grained galvalume finish is more corrosion resistant than galvanized. This material will rapidly corrode if it comes in contact with concrete and mortar. We are in syracuse ny lots of snow in the winter 80 90 degree summers. My main goal is not having to shovel the roof in the winter.

Remember there are multiple styled homes in the u s from. Aluminum zinc combine the chemical action of zinc and the barrier protection of aluminum galvalume was developed by the bethlehem steel corp. Is the worldwide licensor of the technology and know how associated with 55 aluminum zinc alloy coated sheet steel better known as galvalume. We would not recommend using galvalume panels with exposed fastener steel roofing systems such as corrugated or ribbed steel roofs.

Galvalume or zincalume roofing. Time to start shopping for a new roof. Galvalume steel is best for use in prefabricated metal wall panels and standing seam metal roof applications with concealed fasteners. Normally galvalume is offered in both bare and pre coated pre painted versions.

In the photo above we are beginning to see the failure of the paint finish along the seam of the bent metal. Galvalume metal roof and siding panels are coated with a mixture of zinc and aluminum and siliconized coating to help resist scuffs and fingerprints better than a bare metal product. The mixture of zinc and aluminum protects the galvalume metal against corrosion and rust helping galvalume typically last much longer than galvanized steel. Visit every supply house that sell your particular brand of galvalume roof and try to negotiate a better price with each supplier i save on average 20.

Galvalume uses an alloy of 45 zinc 55 aluminum to create an extra durable panel is ideal for roofing and siding. And is described in astm a 792. A measure of the success of this program is the fact that virtually all of the major steel companies worldwide have become licensees of biec. Gibraltar s galvalume steel corrugated panels are trusted by professionals and homeowners for a variety of applications.

The main disadvantage of galvalume steel roofing material is the initial cost of the product which is double the cost of a shingled roof. It is common for many buildings to use galvalume roofing as an initial cost saving measure.