Architectural laminate roofing shingles have a solid shingle on the bottom (no notches like in the 3-tab roofing shingle) and additional layer laminated on top of the lower half of the roofing shingle, to give it a dimensional architectural look of wood shake shingles. Generally, architectural roofing shingles will last a bit longer than 3-tabs, but they should not be installed on a roof slope less then 4. For roof slopes of 3-4, it’s best to use a 3-tab roofing shingles, as it will have better protection from wind driven rain.
Architectural laminate roof shingles are a popular choice of roofing shingle with homeowners and roofers. Architectural laminate roof shingles create depth and the appearance that is similar to wood shake shingles. The roofing shingles contain more than one layer of tabs which make them extra thick. Compared to the older style 3-tab residential roofs shingles, architectural laminate roof shingles are more energy-efficient, provide better wear, fire protection and shield against blow-offs from the wind.