Tim: Last time, we showed you how to install your half-inch foam board over your existing shingles. Now it's time to turn to aluminum.
Al: That's right. And our siding comes in 12-foot lengths. You're often gonna need to cut this around the lighting fixtures and faucets.
Al: Which means you'll have to do some measuring.
Tim: Al uses the old carpenter's adage, "Measure twice, cut once."
Al: Tim's adage is, "Never measure, cut yourself."