Unlike GI sheets with only zinc coating, GALVALUME55® coating is composed of 55% Aluminum, 43.5% Zinc and 1.5% Silicon.   This composition provides superior roofing protection including:

• Superior rust protection – Galvalume55®  roofing sheet provides 3 to 6x longer protection against rust compared to ordinary GI giving the customer a longer service life for his roof.
• High heat reflectivity – Galvalume55®  roofing sheet has superior reflectance of the sun’s heat, allowing a cooler environment inside the house, greatly reducing the cost of electricity.

Retains original silvery finish for a longer period – GALVALUME55® roofing sheet retains its shine and silvery finish making your roof look new for a longer period of time.