



Imagine waking up to a rainy morning, only to find a dark stain spreading across your ceiling. At first, you brush it off as probably nothing—until a drip lands on your morning coffee. That’s what happened to Mike, a homeowner in Portland, last winter. By the time he called a roofer, the leak had seeped into his attic insulation and warped his hardwood floors, costing $3000-$5000 in repairs. I wish I’d known there were better ways to check before it got bad, he later said. Roof leaks are masters of disguise, but with the right scientific tools, you can catch them early. Here are five proven methods professionals use to track down even the sneakiest leaks.

Imagine waking up to a rainy morning, only to find a dark stain spreading across your ceiling. At first, you brush it off as probably nothing—until a drip lands on your morning coffee. That’s what happened to Mike, a homeowner in Portland, last winter. By the time he called a roofer, the leak had seeped into his attic insulation and warped his hardwood floors, costing $3000-$5000 in repairs. I wish I’d known there were better ways to check before it got bad, he later said. Roof leaks are masters of disguise, but with the right scientific tools, you can catch them early. Here are five proven methods professionals use to track down even the sneakiest leaks.


