How much of an asphalt 3-tab shingle is typically exposed after installation?

The typical exposure of asphalt 3-tab shingles after installation is usually about 5 inches. This measurement is significant because it defines how much of the shingle is visible once installed, influencing both the aesthetic and functional aspects of the roofing system.

The design of 3-tab shingles includes cutouts that create a visual effect simulating three separate shingles, while the underlying portion is secured to the roof deck. The exposure dimension is crucial for both water drainage and securing the shingles adequately against wind uplift. When properly installed with the recommended 5 inches of exposure, these shingles can effectively protect the underlying layers of roofing materials and the structure beneath from the elements.