What Gets Covered Up, In Order
- Deck condition — soft, delaminated or gapped sheathing, and whether it was replaced or shingled over
- Ice-and-water membrane — how far past the warm wall it runs, and whether valleys, sidewalls and penetrations got it
- Underlayment — the type, the overlap, and whether it was fastened properly or left to flap
- Starter course — a real starter strip at eaves and rakes, or cut shingles standing in for one
- Flashing — new formed metal at chimneys, sidewalls and step locations, or the old metal reset in sealant
- Valley method — woven, closed-cut or open metal, executed consistently
- Nailing — count, placement in the nail zone, and depth; overdriven nails do not show from the ground and void wind coverage
- Intake ventilation — whether soffit airflow actually exists or the baffles are blocked by insulation
The cheapest insurance you will ever buy
Ask for photographs of the bare deck, the ice-and-water membrane and the flashing before shingles go down. It costs the crew five minutes and gives you a permanent record of the half of the roof you will never see again.
Sealant Is a Detail, Not a Method
The most common shortcut in residential roofing is substituting caulk for metal. A bead of sealant at a chimney or sidewall looks fine on completion day and performs for two or three seasons. Then it shrinks, cracks and lets water behind the wall — usually where nobody looks, because the stain appears inside a chase or above a soffit rather than on a ceiling.
Properly formed flashing sheds water by geometry. Sealant is a supplement to flashing, never a replacement for it. If you can see a lot of caulk on a finished roof, ask what is underneath it.
Why This Matters More Up North
In a mild climate, a marginal install can coast for a long time. Northern Wisconsin does not allow that. Freeze-thaw cycling works water backward under shingles, an ice dam puts standing water on a surface designed to shed it, and months of snow load keep everything wet for a long time. Ice-and-water coverage and balanced ventilation stop being upgrades here — they are the components that decide the roof's lifespan.
How a Homeowner Can Verify Quality Without Climbing a Ladder
- Walk the property before the crew leaves and look at the roof from all four sides
- Check that ridge vent runs the length it should and that soffit vents are clear inside the attic
- Look at the chimney and sidewalls for formed metal rather than a caulk line
- Confirm drip edge is present at both eaves and rakes
- Ask for the before-cover photos and the final product documentation
- Go into the attic on a bright day and look for daylight and for damp sheathing
That is the same sequence we use on our own quality check at the end of a job. If you want a second opinion on a roof somebody else installed, Roof Masters offers a free inspection — on-site or, in some cases, using aerial imagery.
Common questions
- How do I know if my new roof was installed correctly?
- Look for formed flashing rather than sealant at chimneys and sidewalls, drip edge at eaves and rakes, ridge vent paired with clear soffit intake, and ask for photographs of the deck and ice-and-water membrane taken before shingles were installed.
- What is the most commonly skipped step on a roof replacement?
- In our experience, intake ventilation and new flashing metal. Both are invisible after the job and both meaningfully shorten roof life in a snow climate.
- Can a roof look perfect and still fail early?
- Yes. Appearance is determined by the shingles; lifespan is determined by the deck, the membrane, the flashing, the fastening and the ventilation underneath them.