SAN FRANCISCO — Let’s face it: replacing a roof is expensive. It doesn’t matter whether you buy the cheapest roof available or the most expensive—either way, it’s a big, messy job that costs a lot of money. For this reason, it’s wise to maximize your investment by buying the best roof you can afford.

In many cases, what separates a quality, long-lasting roof from a cheap, short-lived roof is the seemingly minor details. For example, one of the most important parts of a roof is flashing—the metal components that protect the edges and penetrations in areas of the roof that are vulnerable to water intrusion. On the surface, a cheap flashing material like galvanized steel may look just as good as the more expensive options; unfortunately, in 10 years, it’ll already show signs of deterioration. Ultimately, something as minor as cheap flashing can lead to premature failure of the entire roof.

So, if you need to replace your roof, consider investing extra in the details. For example, instead of choosing galvanized steel flashing, upgrade to stainless steel or copper, both of which are far more resistant to deterioration and corrosion. By spending additional money on these kinds of details, you can maximize both the lifespan of your roof and the value of your investment.