Shingle weight
CertainTeed Landmark Pro runs about 270 pounds per square against 225 for standard Landmark. On an average home that is roughly 1,100 pounds more material, which is not a number in a brochure.

A warranty year is a marketing number, a lot like the date stamped on a package of meat. What decides whether your roof lasts is shingle weight, ventilation, flashing, and whether the installer knows the nail zone.
Everybody in this trade sells years. Fifty year shingle, lifetime warranty, thirty year workmanship, and almost none of it means what a homeowner assumes it means when they hear it.
Manufacturer warranties cover manufacturing defects, which are rare, and they are prorated and full of conditions about ventilation and installation. They do not cover the thing that actually kills roofs, which is a bad install. A roof fails at the flashing, at the nail line, and at the ridge long before the shingle itself gives out. So we would rather talk with you about how it goes on.
CertainTeed Landmark Pro runs about 270 pounds per square against 225 for standard Landmark. On an average home that is roughly 1,100 pounds more material, which is not a number in a brochure.
Six nails, placed in the manufacturer's reinforced strip, driven flush and not overdriven. High nailing voids manufacturer coverage, and it is the most common defect we find on other people's work.
An attic that cannot breathe cooks the shingle from underneath and takes years off it. Manufacturers know that, which is why inadequate ventilation is written into the warranty as an exclusion.
We are not going to invent a number to beat the guy who told you thirty years. Here is what you genuinely get from us, and where the real protection on a roof comes from.
Four questions. You get a straight read on whether this is a repair, a replacement, a gutter job or an insurance claim, and where to go next.
We cover Northern Virginia and the Fredericksburg area out of two offices. Search for your town, or pick it off the list to see the map and the local page.
No match in our service area. Call (703) 347-6482 anyway, we travel for larger jobs.
We get on the roof and photograph what we find before we quote. You see the same evidence we do.
One crew for the roof, the siding and the gutters, so nobody is blaming the other trade.
Virginia license 2705155080, CertainTeed ShingleMaster certified, fully insured on every job.
Photos and video through the whole install on CompanyCam, stored indefinitely, with a link that is yours to keep.
The terms are written on your estimate, and we would rather you read the terms than the headline number. Anyone quoting a very long workmanship warranty is making a promise about a company that has to still exist to honor it. Ask what it covers, what voids it, and who pays for the tear off.
No. That is a marketing statement and the fine print is prorated. It also assumes perfect ventilation and a flawless install. The DMV is transient, so on a home you own for five or eight years, what matters is how the roof performs in that window and what a buyer's inspector sees.
High nailing or overdriven nails, inadequate attic ventilation, installing over an existing layer, a missing or incorrect starter strip, and unapproved accessories at the ridge. Most denied claims are install problems, not defective shingles. That is exactly why we document how yours went on.
Manufacturer coverage usually transfers once, within a set window after the install, and there is paperwork involved. Terms vary by manufacturer and by product line, so we point you at the specific document for what is on your roof rather than guessing at it here.
You call (703) 347-6482 and we come back out. We pull up your CompanyCam file, look at what was actually installed, and figure out whether it is workmanship, material, or something new like a storm. Having the photos means nobody has to argue about what happened.
Every town we cover has its own page with local detail. Pick yours.
Bring the estimates you got from other contractors and ask us to explain the difference. Free inspection, free written estimate, and no pressure to sign anything.
Tell us what you are seeing and we will get back to you to set a time.