Most winter prep happens outside. The gutters get cleared, the hoses come off the taps and someone finally digs the snow shovel out from behind the lawnmower.
But some of the most frustrating winter calls we get across the Cariboo don't start outside at all. They start inside a warm, comfortable house doing exactly what houses do during the winter season.
Every home is full of moisture. Showers, cooking, boiling kettles, drying laundry and even a family sleeping overnight all add water to the air.
In winter, with everything sealed up against the cold, that moisture goes looking for the coldest surface it can find. Where it lands can decide whether you have a quiet winter or a stained ceiling in February.
Your Attic Can Grow Its Own Frost
Warm air rises and carries moisture with it. It slips into the attic through gaps around pot lights, plumbing stacks, wiring holes and the attic hatch, then meets the cold underside of the roof and freezes. On a frigid morning, some attics look like the inside of an old chest freezer, with frost coating the nail tips and roof sheathing.
Almost nobody climbs into the attic in December, so nobody notices. Then a mid-winter warm spell rolls through, the frost melts all at once and water starts dripping through the insulation onto the ceiling below. Homeowners usually blame the roof. More often than you'd think, the water started its trip inside the house.
Before the deep cold settles in, pop your head through the attic hatch with a flashlight. Dark staining on the wood, damp or flattened insulation and rusty nail tips all mean moisture has been collecting up there. Sealing obvious gaps around the hatch, light fixtures and pipes is one of the least expensive fixes in the whole house.
Find Out Where Your Bathroom Fan Actually Goes
A bathroom fan has one job: get moist air out of the house. A surprising number of them never make it outside. Some vent straight into the attic. Others have a duct that slipped loose over the years or one that fills with condensation in the cold attic and drips back down into the fan.
The test takes about five minutes. Turn the fan on, head outside and find where it exits the house. You should see a vent flap open or feel air moving. If you can't find an exit at all, that's worth having someone look into. Once you know the fan works, run it during every shower and keep it running for a while afterward.
The Closet on the Outside Wall
Exterior walls are the coldest surfaces inside your home, especially in corners and anywhere warm air can't reach. A couch pushed tight against an outside wall or a closet packed with winter coats can create pockets of cold, still air. Moisture condenses there quietly and mold starts growing in the one spot nobody checks until spring cleaning.
Windows give you an early warning. A little fog along the bottom of the glass on a cold morning is normal. Water pooling on the sills day after day usually means the air inside is holding more moisture than the house can handle.
Pulling furniture a few inches off exterior walls and leaving closet doors open a crack lets warm air circulate. Many building experts suggest keeping indoor humidity somewhere around 30 to 40 percent in cold weather and a little lower during a deep cold snap.
Read Your Roof After the First Snowfall
Here's a free inspection that doesn't need a ladder. The morning after the first real snowfall, step outside and look at your roof. An even blanket of snow means your heat is staying where it belongs. Bare patches or melted strips while your neighbours' roofs are still white tell a different story. That's heat escaping into the attic, often right above the same gaps that cause attic frost.
Big icicles along the eaves are part of the same picture. Snow melts on the warmer upper roof, runs down to the cold overhang and refreezes into an ice dam that can push meltwater back under the shingles.
Your Inside-the-House Winter Checklist
None of this takes a contractor or a full weekend. Before the coldest weeks arrive, try to work through these:
Check the attic for frost, staining or damp insulation
Seal gaps around the attic hatch, pot lights and plumbing stacks
Confirm every bathroom fan vents outside, then use it
Move furniture a few inches off exterior walls
Pick up a humidity monitor and watch for window condensation
Look at your roof the morning after the first good snowfall
Later in the season, when a warm spell follows a long cold stretch, take a quick look at top-floor ceilings and around light fixtures for new stains or drips. Wet insulation and drywall that get dried out quickly can often be saved. Left alone for a few weeks, they rarely can.
Keeping a Warm House Dry
A cozy home is the whole point of winter in the Cariboo. Knowing where all that warm, moist air ends up keeps it from becoming a spring surprise.
If you find frost in the attic, a water stain that wasn't there last month or a musty smell you can't track down, Ultrawest Restoration can help. Our team handles water damage and mold remediation for homeowners across Quesnel, Prince George, Williams Lake and 100 Mile House. We're always happy to take a look before a small problem has time to grow.
