A roof does not reach the end of its useful life on a date printed on a calendar. Age helps frame the conversation, but the condition of the shingles, flashing, roof deck, and attic tells you more about what to do next. In Kalamazoo and Portage, the practical question is whether your roof is still performing and which conditions need attention.
There is no single lifespan we can responsibly promise for every Michigan roof. A homeowner with installation records, photographs, and a documented inspection is in a better position to plan than one relying on a generic “years remaining” estimate.
Warranty length and service life are different
CertainTeed describes Landmark coverage as a limited lifetime warranty, subject to its terms. That is product coverage, not a guarantee that every roof will remain maintenance-free for the homeowner’s lifetime. Ownership, the selected product, installation requirements, and exclusions affect the actual coverage. CertainTeed: Landmark shingles and warranty terms
Keep the original product information with the installation invoice. If the roof predates your ownership, ask for available records rather than guessing the product from its color. A warranty can help answer who is responsible for a covered issue; it does not replace a condition assessment.
Look at the system, not just the shingles
Shingles are one visible layer. Water protection also depends on the joints around chimneys and walls, pipe penetrations, underlayment, and how the roof sheds water. A localized flashing problem may be repairable even when the shingle field is otherwise serviceable.
Conversely, repeated leaks in separate areas deserve a broader investigation. Tell the inspector what has already been repaired and whether the same symptoms returned. Ask which findings point to an isolated defect and which suggest a more widespread limitation.
Michigan seasons change the questions to ask
After wind, look from the ground for displaced or missing materials. After snowmelt, note whether staining appears near an exterior wall or in the same room each winter. Repeated ice accumulation calls for a discussion of heat loss and the attic as well as the roof covering; replacing shingles alone may not address the cause. DOE: eaves in cold climates
These observations are clues, not a diagnosis. Do not climb a roof to test brittle shingles or inspect storm marks. Photos taken safely from the ground and notes about timing give the inspector useful context without adding fall risk.
Ask for a maintenance decision, not an age verdict
A useful inspection separates conditions that need action now from those that can be monitored. Ask what a proposed repair would accomplish, what remains outside its scope, and which changes would trigger another visit. If replacement is recommended, request photos and an explanation of why a localized repair is not the appropriate option.
If no immediate work is recommended, keep the report. Comparing observations over time can make a later decision clearer. Revisit the roof after a meaningful new symptom or damaging weather rather than assuming that an earlier inspection predicts every future condition.
Plan with actual information
Apex’s free 21-point inspection includes a photo report and guidance on repair versus replacement. If work is recommended, the itemized quote identifies the scope before you decide. Bring the roof’s approximate age and any prior repair records, but let the evidence lead the recommendation.