How often does a log home need re-staining in southern Alberta?

The answer manufacturers give is three to five years. In southeast Alberta that is optimistic on the walls that take the weather, and pessimistic on the ones that do not.

It is not one number, it is four walls

South and west elevations take the UV and the prevailing wind. They will fade, chalk and start shedding film years before the north side shows anything at all. Treating the house as a single job on a single schedule means you either re-coat the north wall for no reason or let the south wall go too far.

• South and west: inspect every second year, expect to re-coat around year three or four.
• North and east: often good to year six or seven.
• Under deep eaves: longer again, sometimes double.

The signs that matter

Fading on its own is cosmetic. What matters is whether the film is still bonded. Run a thumbnail across a south-facing log — if the finish powders off or lifts in a flake, the bond has gone and a maintenance coat will not stick to it.

A maintenance coat over a failing film buys a season. Stripping and starting again buys a decade.

Water is the tell

Splash water on the log. If it beads, the finish is doing its job. If it soaks straight in and darkens the wood, the surface is open and it needs attention before winter gets into it.

Elevation moves the answer. Elkwater sits roughly 600 m above the Medicine Hat valley, holds snow far longer and dries out later in the spring, so a south wall up in the Cypress Hills is on a different clock than the same wall on an open acreage out toward Dunmore or Seven Persons.