Focus on durability, longevity, warranty, efficiency, installation

Too many people focus on either just the frame, or the phrase (energy efficient). or assume the big brand names are the best. Here's what you're missing and what you need to pay more attention to.

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It’d be hugely helpful if you had a comprehensive list in your book or in one of your videos or both of all the things to look for and look out for in manufacturers’ and dealers’ warranties.