Shingle manufacturers have recently made their warranty's more confusing than ever. Historically shingles use to come with a specific length of coverage in years. Such as a 25,30,40 or 50 year (lifetime) warranty. If you bought a 30-year shingle it was a different product from the 40 or 50-year shingle. In the age of marketing, many manufacturers have changed the name of their warranties and are calling them "Limited Lifetime" warranties now just produce one product with a limited lifetime warranty equivalent to their standard 30-year shingle. It's important to note that there are limits in the fine print even though the warranty is called "Limited Lifetime". Will the shingle last a lifetime......No, so it is a little misleading and difficult to compare coverage. The Malarkey brand has not changed the naming system of their warranties and they continue to produce different multi-level shingles with a corresponding warranty. To keep themselves competitive in the eyes of the consumer they will match ANY comparable shingle manufacturers warranty of the homeowners choice they are that confident about their product. To read more about the "Your Choice" warranty program follow the link below.
Owens Corning has recently launched a new line in Canada called Duration. It comes with a lifetime warranty, 130mph wind warranty as well as algae resistance warranty. Remember IF your roof isn't installed per manufacturer specifications your warranty won't be valid and if your whole roof blows off and it's determined that poor installation was the problem you are out of luck. Here is a great video clip that brings that home.