DIY & Home Improvement

http://www.apartmenttherapy.com/an-unexpected-combination-corr-111748


"In theory, corrugated metal sounds like a rust disaster waiting to happen, it's actually quite durable and corrosion resistant. Janet over at Remodelista explains that most corrugated metal comes with corrosion-resistant coatings (such as zinc). Also, "aluminum siding is great for indoor applications as it is softer to work with, and because the aluminum reacts with moist air to form aluminum oxide. This reaction creates a very hard coating that then seals the aluminum surface from future deterioration."

For the remodel from Country Living, the galvanized sheets were cut to fit (ask a carpenter for help) and then finished with Rust-Oleum Crystal Clear Enamel before screwing them in place. Self-sealing roofing screws and metallic caulk were used to prevent leaks."

From another board linked to this site:

" I've used corrugated metal both inside and out on multiple residential projects in Texas. Two types are commonly used: galvalume (electrogalvanized with an acrylic protective finish) and galvanized (electrogalvanized). A third less common alternative is "paint grip" which has a distinctive darker tone and is designed to be painted but many architects use it as is. Cor-ten is another alternative, designed to rust. The galvalume will stay silvery the longest and resists fingerprints. Regular galvanized will stain more readily and will show the installers' fingerprints if gloves are not worn. It will eventually turn a soft gray if exposed to outside elements or used in a shower. "