SPX exceeds the building code by applying 50% more corrosion protection than the minumum required.
This added protection results in a predicted lifespan of over 300 years.
This performance is backed by a 30 Year Structural Warranty, the only warranty of its kind in the industry.
The NAHB Research Center, a subsidiary of the National Association of Home Builders (NAHB), and the International Zinc Association conducted a 10-year test to determine the lifespan of galvanized steel in residential construction.
The ten year study shows minor mass losses for all coating types in all sample colonies (e.g., walls, attics,floor joists). The measured coating corrosion rates extrapolate to coating life predictions of 300 to over 1000 years in wall, floor, and roof framing.