(Same Shingles, Same Street, Same Kansas Weather)
Drive down almost any street in Old West Lawrence, East Lawrence, or the older parts of Oread and you’ll see it: two houses built the same year, same dark shingles, same towering oaks overhead. One roof looks almost new at 20 years old. The house next door got replaced — again — last summer at just 13 years old.
Same shingles. Same street. Same hail storms, same freeze-thaw winters, same blistering July heat. So why does one roof crumble while the identical roof next door keeps protecting the house for decades?
After inspecting thousands of Lawrence homes, we can tell you exactly why — and none of the reasons have anything to do with the shingle brand on the wrapper.
1. Installation Quality Trumps Everything
A shingle is only as good as the hands (and brains) that put it down.
- Nails too high → wind gets under the shingle and rips it off in the first 50-mph gust
- Nails too low → you just punctured the shingle and created a permanent leak path
- Six nails instead of four (or four instead of six) in the high-wind zone → the difference between staying put and sailing into your neighbor’s yard
- Hand-sealed vs. factory sealant only → factory sealant fails fast in Kansas temperature swings
We regularly tear off 12-year-old “failed” roofs and find the exact same shingle still perfectly flexible — because it was never installed correctly in the first place.
2. Underlayment and Ice & Water Shield (The Part Nobody Sees Until It’s Too Late)
Code in Lawrence requires ice & water shield at eaves and valleys. Most failing roofs have exactly 36 inches at the eave and nothing else. The roofs that last 30+ years usually have full coverage in valleys, around chimneys, skylights, and 6–9 feet up from the eave — because water in Kansas doesn’t always run straight down.
3. Flashing Details That Actually Work
90% of leaks we fix have nothing to do with shingles — they’re at the transitions:
- Chimneys with no cricket or counter-flashing
- Sidewalls where step flashing was cut too short
- Plumbing vents with cracked rubber boots or no storm collar
- Valleys that were woven instead of closed-cut (or vice-versa for the roof pitch)
The roof that lasts has a roofer who treated every penetration and transition like it was on their own house.
4. Attic Ventilation and Insulation Done Right
Two houses, same shingles, same street — but one attic hits 140 °F in summer and the other never breaks 110 °F. Guess which roof cooks itself from underneath and cracks at year 12?
Proper intake at the soffits + proper exhaust at the ridge + no insulation blocking airflow = the #1 reason some roofs dramatically outlive their neighbors.
5. The Crew That Showed Up
The roof that fails at 12 years was usually installed by the lowest bidder using day-labor picked up at the gas station. The roof that hits 35 was installed by a crew that’s been together for years, knows Lawrence’s 1890s roof decks, and still answers the phone in February when you have an ice dam.
6. Ongoing Care (Or Lack Of It)
The 35-year roof gets a quick inspection every few years, gutters cleaned, small branch-rub areas resealed, minor issues fixed before they become major. The 12-year failure usually gets zero attention until water is pouring through the kitchen ceiling.
The Bottom Line
You can buy the exact same shingle your neighbor has, but if the installation details are wrong, your roof will die young — and you’ll never know until the damage is done.
The difference between a 12-year roof and a 35-year roof isn’t luck. It’s hundreds of tiny decisions made (or ignored) the day the crew showed up — decisions most homeowners never see and most roofers never explain.
Want to know exactly how many years your current roof has left — and whether it was installed the way the 35-year roofs on your street were?
Contact Summit Roofing for a free, no-pressure inspection. We’ll show you (with photos) every detail that matters on your specific roof — the flashing, the nailing pattern, the ventilation, the works — so you know exactly where you stand.
Because in Lawrence, the roof over your head should last a lot longer than 12 years — no matter what street you live on.
Ready to find out if your roof was built to last? Message or call us today. We’re local, we’ve seen every street in town, and we’ll tell you the truth.
