GutterFoam - 5" K-Style

5" K-Style is the most common gutter size, but we make GutterFoam for any size gutter. | GutterFoam Pro FR PLUS is Class A rated, which means that it will not start a fire when exposed to a flame. Testing is done per Section 703A and SFM Standard 12-7A-5, Ignition-Resistant Material, in accordance with ASTM E84-18 "Standard Method of Test for Surface Burning Characteristics of Building Materials".