K style hidden hangers require long zip screws (1.5” x ¼”) with a hex head. These zip screws are used to fasten the gutter hangers directly to the fascia board. Make sure the metal of the screw you are using is compatible with the metal of the gutter.

K style hidden hangers are a discreet yet durable gutter hanging option that provide a clean, seamless look (as they cannot be seen from the ground). They are cost-effective and relatively easy to install and maintain.

The lifespan of a hidden hanger depends on a number of factors like the material, climate conditions, and maintenance, for example. However, they can last 50+ years if properly installed and maintained.

To properly measure for a hidden hanger, measure the width of the gutter. For example, 5” k style gutters will require 5” hidden hangers. For spacing, most hidden hangers are spaced every 24” to 36".

K style hidden hangers mount the gutter directly to the fascia board. T Bar style hangers, on the other hand, are used when there is no fascia board to mount the gutter to. You secure the hanger into the gutter and use the T Strap to nail into the roof deck and install to the building as a free hanging system.

The number of gutter hangers needed can vary depending on the size of the gutter, the slope of the roof, and environmental conditions. However, as a general guideline, it's common to space gutter hangers approximately 24 to 36 inches apart along the length of the gutter run. For gutters that will endure heavier snow loads, hangers should be spaced closer together.