Wood shake roof care
Annual · typically September
Why it matters
A wood roof is the most maintenance-honest roof there is: treat it well and cedar gives you 30–40 years of the best-looking roof on the street; ignore it and it composts in place. The entire care philosophy is one sentence — keep it clean so it can dry. Debris in the keyways (the gaps between shakes) is the enemy; those gaps are the roof's ventilation, and packed needles turn them into moisture wicks.
What skipping it costs
$600–$35,000
Wood roofs live or die by drying out between rains. Debris packed in the keyways holds moisture against the wood, moss follows, rot follows that — and a repairable roof becomes a $25,000–$35,000 replacement years ahead of schedule. The maintenance is mostly janitorial: keep it clean, keep it breathing, fix the few bad shakes each year.
Two ways to get it done
Do it yourself
You'll need: Binoculars, Leaf blower (for reachable eave debris only), Phone camera.
- Binocular survey from the ground, all four sides: curled, cupped, or split shakes; slipped shakes leaving gaps; moss patches; and debris ribbons in the keyways and valleys.
- Clear what you can safely reach from a ladder at the eave — a leaf blower reaches surprisingly far up-slope. Never climb on: wood shakes are slick when damp and brittle when old, and foot traffic splits them.
- Photograph problem areas with dates. A wood roof ages visibly, and the year-over-year record is what tells you whether you're maintaining or managing decline.
- Check the gutters for wood grit and fragments — accelerating debris is the roof telling you sections are breaking down.
- Keep the trees honest: branches over a wood roof drop the debris that starts the whole rot cycle, and they shade the drying that stops it. The tree-trimming card in your plan is doing roof work here too.
Hire it out
$400–$1,200National fair range — local labor moves this number.
A professional wood-roof maintenance visit runs $400–$1200 depending on size and condition: hand-and-air cleaning of the field and keyways, individual shake replacements (chalk-marked and counted, so you can verify), and ridge cap checks. Shake-by-shake repair is the normal economics of this roof for most of its life — replacement is a last chapter, not a first suggestion.
On treatments: preservative and fire-retardant applications have real but temporary value — a few years per application, priced accordingly. The sealer-in-a-bucket crowd selling permanent miracle coatings is selling rot with extra steps. If a company's plan doesn't start with cleaning, it isn't a wood-roof company.
Ask the tech
- Are you cleaning the keyways by hand and air, or bringing a pressure washer? (Wrong answer ends the visit.)
- What percentage of shakes actually need replacing, and can you chalk-mark them for me to see?
- Is a preservative treatment worth it on this roof's age, or am I paying to oil a roof in its last decade?
Red flags you're being upsold
- Pressure washing wood shakes. It erodes soft grain, drives water into the field, and shortens the roof's life in a single afternoon — no exceptions, no 'low pressure' version.
- 'It's all shot' about a roof with localized curl and a few splits. Wood roofs are repaired shake-by-shake for years before replacement is honest.
- Miracle sealers and 'lifetime' coatings. Wood roofs survive by breathing and drying; film-forming sealers trap moisture and accelerate rot while looking shiny doing it.
Second opinion time: Any replacement quote — wood roofing is a specialty with wild price spread, and an insurance-driven replacement conversation deserves two bids and your agent on the phone.
The call
DIY the survey and whatever debris you can reach from a ladder at the eave. The rest is specialist work — and in wildfire country, have the honest replacement-material conversation before the insurance company has it for you.