Weatherboard homes are everywhere in Geelong's older suburbs, from the cottages of Newtown and Geelong West to the coastal shacks of Queenscliff and the farmhouses out past Bannockburn. They paint up beautifully, and they also show every shortcut, because the sun hits each board edge and any peeling or bare timber telegraphs straight through the top coat. Here is the preparation that decides whether a weatherboard repaint lasts two years or ten.
Why do weatherboards need more preparation than brick?
Timber moves. It expands and contracts with moisture and temperature, and every board overlaps the next, creating thousands of linear metres of edges and joints where paint film is thinnest. Paint on a static brick wall sits undisturbed. Paint on weatherboards is flexed constantly, and it fails first at the board edges, the nail heads and the end grain.
Boards also weather unevenly. The north and west elevations cop the sun and dry out, chalk and crack first, while the south side holds moisture and grows mould. A quote that treats all four sides of a weatherboard house as identical has not looked properly.
What does the preparation sequence look like?
It starts with a wash to remove chalk, dirt, mould and salt. Then scraping: every loose and flaking section comes off, because new paint only sticks to what is underneath, and if the old paint is letting go, the new coat goes with it. Sanding follows, feathering the edges of scraped areas flat so they do not print through the finish, and dulling any glossy old enamel so the new paint grips.
Gap and nail hole filling comes next, then spot priming of every bare patch. Bare timber drinks binder out of top coats, leaving them weak and patchy, so any board sanded back to wood gets primed before the finish coats. Only then do the two top coats go on, each brushed or rolled into the board profile rather than stretched thin.
What happens with rotten or split boards?
Not every board can be saved. Rotten sections, usually at board ends, around window sills and along the bottom row near the ground, need replacing or splicing before painting. Painting over rot is worse than leaving it, because it hides the decay while the timber keeps failing.
A good quote walks the walls and points out the boards that need replacing, so you can decide whether to repair them before painting rather than finding out after. It is one of the clearest differences between a quote that inspected the house and one that glanced at it.
How long should a weatherboard repaint last?
A properly prepared weatherboard exterior, two top coats over sound primer, should hold its finish for years. The weather sides will age faster than the sheltered sides no matter what, but early peeling within a year or two almost always traces back to preparation: paint over chalk, over moisture, or over unsound old coating.
Between repaints, a wash every year or two and prompt attention to any board that starts lifting keeps the system intact. Small touch-ups on weatherboards are easy when the base is sound and nearly pointless when it is not.
The coastal and cottage factor
Older cottages near the coast carry extra history: many layers of old paint, sometimes including very old lead-based coats in pre-1970s homes, and boards that have seen a century of weather. Homes of that age deserve a careful approach to sanding and stripping, with lead-safe practices where the age of the paint suggests it. It is worth mentioning the age of your house when booking the quote, because it changes how the preparation is planned.
Our weatherboard painting service is built around exactly this preparation sequence. Done properly, a weatherboard repaint is one of the most satisfying transformations on any house. Done quickly, it is one of the most visible failures. The boards do not lie.
Which paint and colour suit weatherboards?
Exterior acrylic is the standard top coat for weatherboards, chosen for flexibility, because the film has to move with the timber through hot days and cold, damp nights. Sheen level is a real choice on boards: low sheen hides minor imperfections in old timber, while gloss highlights the shadow lines of the board profile but also every flaw. Most older cottages suit low sheen on the walls with a tougher semi-gloss on trim, windows and doors, where durability and washability matter more.
Colour deserves a thought about heat. Very dark colours on sun-facing boards get hot, and heat drives movement in the timber, which stresses the paint film. Modern paint ranges offer dark colours formulated to reflect more heat, which is the sensible path if a dark facade is the goal. Lighter colours stay cooler and generally give the longest service on exposed elevations.
The maintenance rhythm that works
The cottages that look good decade after decade share a simple rhythm: wash the walls every year or two, touch up any board edge or sill that starts to go as soon as it appears, and repaint on the coating's schedule rather than after it has visibly failed. Repainting a sound coating is a modest job. Repainting a failed one starts again from scraping, and the price follows the preparation.