Buying or Selling a Home Here? What the Roof Is Actually Telling You
A roof is one of the most expensive things on an inspection report and one of the most negotiated. What inspectors flag, what it means, and what it is worth.
A roof is one of the largest single line items on a home inspection report, and one of the most negotiated. It is also one of the most misunderstood — by buyers, sellers, and occasionally by the general inspector writing it up.
Here is what the language actually means, from the people who would be doing the work.
“Roof is at or near the end of its serviceable life”
The most common phrase on a Puget Sound inspection report, and the vaguest.
It usually means the inspector estimated the age and compared it against a typical lifespan — 20 to 30 years for asphalt here. It does not necessarily mean the roof is failing, or leaking, or that it will not last several more years.
What it does mean is that the buyer’s lender and insurer may now have opinions. Some insurers will not write a new policy on a roof past a certain age, or will shift it to actual cash value rather than replacement cost. That is often the real reason a roof becomes a deal issue, rather than the roof’s actual condition.
“Evidence of prior repairs”
Neutral on its own. Every roof over fifteen gets something done to it.
What matters is what kind of repair. Properly rebuilt flashing is maintenance. A thick smear of roofing tar over a flashing detail is somebody buying time, and it usually means the underlying problem is still there.
“Multiple layers observed”
Genuinely worth caring about, for three reasons:
- Nobody has seen the decking in a long time, so its condition is unknown.
- Removing two or three layers costs meaningfully more than one when replacement comes.
- In Snohomish and Pierce counties the permit exemption is tied to layer count and to leaving sheathing in place — so more layers can change the permitting picture too.
This is common on mid-century housing in Lakewood, Everett and Auburn.
“Moss growth observed”
Very common here and usually less serious than it reads. On a sound roof this is a cleaning job, not a replacement one.
It becomes serious when it has been established long enough to lift shingle edges — at which point water has been getting underneath, and the question shifts to what it found.
“Improper flashing” or “flashing repairs recommended”
Take this one seriously. Most roofs in this region leak at flashing rather than in the field, and “improper” usually means a detail that was never built correctly — which means it has been letting water in slowly for as long as it has existed.
If you are selling
Get a roofer’s assessment before you list, not after the inspection report lands.
A general inspector is a generalist and is professionally obliged to flag anything questionable. “Near end of serviceable life” on a report becomes a negotiation anchor, and by then you are responding to someone else’s framing under time pressure.
Knowing beforehand gives you three real options:
- Fix the specific items — often flashing or a repair, at a fraction of a replacement
- Replace it and price it in, with a transferable warranty as a selling point
- Price it in and disclose it, which at least means you set the number
The one that costs the most is finding out during the inspection contingency.
If you are buying
Get a roof-specific opinion before the contingency expires if the report flags anything.
A general inspection is broad by design. A roofer will tell you which of these you actually have:
- A roof with real life left that needs a repair
- A roof that needs replacing but is not urgent — plan and budget for it
- A roof that has been leaking, where the question is what the water reached
That third one is why it matters. Roof damage is rarely confined to the roof.
Ask, specifically: how many layers, what condition is the flashing in, and is there any evidence of water in the attic. Those three answers tell you most of it.
What a roof is actually worth in a negotiation
A full replacement here typically runs $12,000 to $20,000. Repairs run $500 to $1,500.
A seller offering a $3,000 credit on a roof that genuinely needs replacing is not solving the problem. A buyer demanding a full replacement on a roof that needs $900 of flashing work is not being reasonable either. The gap between those two positions is usually just an absence of a real number — which is what an actual roofer’s estimate provides.
We will tell you either way
We inspect roofs for buyers and sellers across all 31 cities we serve, and there is no charge and no obligation. If the answer is “this roof has eight years left and needs one flashing detail rebuilt,” that is what the written estimate will say — that is worth more to us than a replacement we talked someone into.
Written by the Brixton & Windsor Roofing crew. We are a family owned, CertainTeed ShingleMaster™ PRO roofing company in Bothell, and Daniel does every estimate himself. If something here applies to your roof and you want a second opinion on it, the inspection is free.
