For residential, we only install Lifetime GAF Timberline and Designer shingles paired with Z-Ridge and cobra ridge-vents. Have you noticed that most roofing contractors save a buck by pairing an architectural shingle with a cheap 3-tab ridge? This is unethical and a recipe for failure. You're allowing a shingle designed to last 20 years to ridge and accent a shingle designed to last over 30 years. Spend a bit extra and do it the SparklingRoof way!