Composition shingles protect homes from the brunt of weather and sunlight, yet they are not the only line of defense. Underlayments play the crucial role of secondary layer of protection beneath the shingles. During heavy storms, wind can push rainwater up the lower side of the shingles, or ice can pack and seep beneath them. Shingles are naturally resilient against these issues, yet they can deteriorate over time or they may not be installed correctly. Without an underlayment, moisture would reach the roof deck substrate and begin to rot the structure.
Do you know what kind of roofing warranty you have? Is it for material defects only? Does it cover labor or misapplication? Does it cover a full dollar amount or is it prorated?
These are among the most important questions to ask when getting a new roof because they can mean a significant difference in quality, longevity, and the amount you would have to pay for any fix in the future.
In light of the recent warranty changes in the roofing industry I thought our home owners could use a little help understanding the new warranty system. Pre 2011 we used to refer to shingles as 30, 40 or 50 year (lifetime) shingles. As of 2011 the entire roofing industry shifted to a new warranty system called limited lifetime shingles. Now all laminated asphalt shingles are covered by a limited 50 year warranty.