Metal roof repair in Glendale

Glendale has an older housing profile than most of the cities we cover. There is a genuinely historic core around downtown and Catlin Court, a broad band of 1960s to 1980s ranch through the middle of the city, and newer building out toward the Loop 303. It is that middle band that produces most of our work.

Houses of that era, in this part of the Valley, have a much higher rate of evaporative cooling still in service than newer stock does. Plenty of Glendale homes are still running a cooler, either as the main system or alongside refrigerated air, and a cooler is a machine that deliberately puts water on your roof.

It works by drawing air through wetted pads, so water is running continuously while it operates. It also has to bleed a proportion of that water off, because otherwise dissolved minerals concentrate until they destroy the pads and the unit. That bleed water has to go somewhere, and on a great many installations it simply runs out onto the panel and takes the same route to the edge every day, all summer, for years. Then a float valve sticks, or a pad overflows, and now it is not a trickle. It is a steady flow across the same square foot of metal.

This is why we say Phoenix is too dry to rust a roof. It is. Metro Phoenix does not have the humidity or the rainfall to corrode metal in the way a coastal or temperate climate does. When we find rust here, it is almost always sitting directly downhill of something that has been putting water on that spot deliberately, and nine times in ten it is a cooler. The tell is the shape. Weather rust is general and even. Cooler rust is a trail. It has a direction, a starting point and a width, and if you follow it uphill you arrive at the cause.