Ten weeks is long enough for moss to close over a north slope. Ten weeks is long enough for a lifted piece of flashing to print a brown ring on a hallway ceiling, which is why one Bonney Lake couple spent their first morning home searching for roofers bonney lake wa instead of unpacking. Ten weeks is also nothing at all when you are somewhere between Flagstaff and the Oregon coast on the way back. Their 1978 rambler sat empty from the middle of September to the end of November, and the Puget Sound autumn had the place entirely to itself.
Ten Weeks Away Turns Small Leaks Into Stains
The stain was about the size of a dinner plate, with a hard brown edge around it. That edge matters. A fresh damp spot is days old, while a ring like the rings in a tree stump has been drying and rewetting for weeks, and in a house nobody visits there is nothing to interrupt the cycle. Here is the argument this whole story makes: for a roof that old on a house that empties out for a season, a full installation with the deck inspected and repaired costs less across the next decade than another round of patching, and it is the only version that lets you drive away without arranging for a friend to climb a ladder in November.
The Attic Told The Real Story
Go up into the attic before you call anybody. On the north end, the underside of the sheathing carried dark streaks running down from the nail line, and two panels gave a little under a thumb. Job after job around here, what turns up first is not the shingles at all, it is the plywood underneath them, because moss holds water against the surface long after the rain quits and the deck never gets a chance to dry out. Do not climb onto the roof itself to check. A wet, moss covered composition slope in a Northwest November is slick enough to put you in the hospital, so look from the attic or from the ground with binoculars and let someone with fall protection handle the rest.
Patching A Twenty Six Year Roof Bought Nothing
They tried the cheap version first, which is what most people do. A roofer sealed the flashing and swapped a dozen shingles for a few hundred dollars, and the hallway dried out before Christmas. A couple two streets over had done the same thing three autumns running, always on the same slope, and by the third February they were budgeting for ceiling paint alongside the roofer. That stain was the roof sending its bill.
The patch held for about two weeks. The next atmospheric river found the same seam.
Installation Math For A Long Absence
Run the numbers on the patching pattern and it stops looking thrifty. Say the rambler has 1,900 square feet of roof surface, call it 19 squares. Two service calls over the past three years ran roughly $650 apiece, so $1,300 already spent, and the newest patch quote came back around $1,900. Honestly, closer to $2,400 once the two soft sheets of plywood on the north slope were priced into it. Add a $300 moss treatment and gutter clearing every fall, and three more years of the same routine comes to about $5,100 poured into a roof that has maybe four winters left in it.
None of which is unusual for a replacement of this size. This Old House put the average cost of replacing an asphalt shingle roof on a 2,000 square foot home at roughly $15,439 in August 2026, and a Bonney Lake rambler needing partial deck replacement sits in that same neighborhood. The figure looks steep next to a $1,900 patch right up until you set it against financing terms and a warranty covering workmanship rather than shingles alone. A good installer treats the deck assessment as part of the job instead of a change order that shows up on day two, which is the part that decides everything when the plywood is the actual problem.
Leave The House Knowing The Roof Holds
The new roof went on across four days in April: two sheets of sheathing replaced, fresh underlayment, flashing redone, and ridge ventilation the original build never had. When they compared roofers bonney lake wa the second time around, the question they asked changed. Not what will this cost to fix, but what happens to this house while we are gone for ten weeks. That is the right question for anybody whose travel is measured in seasons rather than weekends, and they left again the following September without asking a neighbor to check the attic.

