Olympia, WA
Roof Replacement in Olympia, WA
Half of Olympia’s homes were built before 1982, the median construction year in Census data, which means many houses here are on their second or third roof by now. Some carry a newer layer of shingles laid over an older one. That history matters more than the shingle color when you plan an Olympia roof replacement: the condition of the roof deck, the flashing and the attic ventilation decides how well the new roof holds up. We replace roofs here with asphalt shingles or EDCO metal roofing, and every project starts with a full look at what is underneath.

Roofs on Olympia homes
Census data shows Olympia’s 26,795 housing units spread fairly evenly across four building eras:
- 18% built before 1950
- 29% built from 1950 to 1979, the largest group
- 28% built from 1980 to 1999
- 25% built in 2000 or later
On the older half of that housing, the roof you see is rarely the first one. A roof installed over an existing layer hides soft or rotted decking, so our replacements tear off the old roofing down to the sheathing. We repair damaged decking before any underlayment goes down. Homes from the 1980s, 1990s and later are more often on their original or first replacement roof, and the condition of the shingles tells us more than the build date.
The housing mix is broad. Detached houses make up 52% of local housing, attached homes such as townhouses 14%, apartments 31% and mobile homes 2%. Most of our roofing work is on detached and attached homes. Garages, additions and other low-slope sections need their own installation method, with drainage and waterproofing checked at every edge, and we plan for them during the consultation.
Olympia’s weather and your roof
Olympia is part of the South Sound, a region that sees heavier rain than central Puget Sound and a housing mix of mid-century and rural homes. Moss is a common sight on roofs here. Moisture is what wears roofs down here, so the details under and around the roofing material deserve as much attention as the material itself:
- Underlayment at valleys and eaves. Runoff concentrates where roof planes meet and at the low edge. A full underlayment, with extra protection in those spots, keeps the deck dry when wind drives water under the outer layer.
- Balanced attic ventilation. Intake at the eaves and exhaust near the ridge let damp air leave the attic, so the sheathing can dry between storms instead of staying wet through the season.
- Flashing at every wall and penetration. Step flashing, pipe boots and flashing around skylights and chimneys are where most leaks start on an older roof. We inspect each one when the old roofing comes off.
- Clean roof edges and working gutters. Drip edge and clear gutters move water off the roof and away from the fascia, where standing water and moss debris cause rot.
Wildfire risk is rated low here, at the 54th percentile statewide. Fire exposure is not what drives roof choice in Olympia; water is.
Asphalt shingle or metal in Olympia
We install two roof types and give them equal weight.
Asphalt shingle roofing is a cost-effective, durable option for most pitched roofs. It comes in a wide range of styles and colors, suits Olympia’s mid-century and newer houses alike, and pairs with the underlayment and ventilation details above. Shingles also adapt easily to dormers, valleys and roofs with several planes.
EDCO metal roofing offers a different look and material, protects well against rain and wind, and needs very little routine maintenance.
Home values are part of the picture. Olympia’s median home value is about $485,000, 6% above the Thurston County median, and where values run above the county median, buyers more often choose premium materials such as metal. That said, either roof works well on an Olympia home when it is installed with the right details. We compare both on your house during the consultation, against your siding and trim, before you decide.
Signs your roof needs replacing
In a wet climate, the warning signs show up as moisture problems first:
- Moss lifting shingle edges. Moss grows into the gaps between shingles and pries them up, letting water reach the underlayment.
- Granules collecting in gutters. Bare patches mean the asphalt shingles are wearing through their protective surface.
- Repairs that no longer hold. If the same area keeps leaking after a repair, the problem usually sits in the deck or flashing, not the shingles.
- Stains or soft spots in the attic. Dark sheathing, damp insulation or a spongy feel underfoot on the roof point to moisture that has been there a while.
- More than one layer on an older home. Stacked roofs hide decking damage and add weight.
Get a free roofing consultation in Olympia
Schedule a free in-home consultation or call our Tacoma office at 253-777-0866. We inspect the roof, tell you whether repair or replacement makes sense, and review pricing and scope in person. Ask about financing and discounts for seniors, active military, veterans and first responders. For siding, windows and decks, see our Olympia home exterior services.
Olympia roofing FAQ
Is EDCO metal roofing a good fit for Olympia's rain?
Yes. EDCO metal roofing handles Olympia's rain well, and rain here runs heavier than in the central Puget Sound. A metal roof needs very little routine maintenance, but like any roof it depends on sound flashing, underlayment and ventilation underneath. We install asphalt shingles too, and we compare both on your house during a free in-home consultation so you can weigh the look and the budget.
Does Olympia's wildfire rating change which roof I should choose?
Not much. Wildfire risk in Olympia is rated low, at the 54th percentile statewide, so water is the bigger factor in choosing a roof here. Both roofs we install, asphalt shingles and EDCO metal, are picked for how they shed rain and how the details underneath keep the deck dry. If fire resistance still matters to you, we can go over it during your consultation.
My Olympia house was built in the 1960s. Is the roof on it the original?
Probably not, and it may not be the only layer. Homes built from 1950 to 1979 are the largest group in Olympia, 29% of housing, and many have been reroofed at least once, sometimes with new shingles laid over old ones. We check during the consultation, and our replacements tear off down to the sheathing so damaged decking can be repaired before the new roof goes on.
Do you replace roofs on mobile homes in Olympia?
Yes, we look at manufactured home roofs case by case. Mobile homes make up about 2% of Olympia housing, and their roofs are often low-slope, which calls for a different installation method and closer attention to drainage than a pitched roof. During the free in-home consultation we check the slope and the structure, then explain which of our roof options fits the home.
Do Olympia homeowners lean toward asphalt or metal roofing?
Both are common choices, and we give them equal weight. Olympia's median home value is about $485,000, 6% above the Thurston County median, and where values sit above the county median, owners more often choose premium materials such as EDCO metal roofing. Asphalt shingles remain a cost-effective, durable choice for most pitched roofs. We compare the two on your home before you decide.