Fall Preparation: Before the Snow
For wood decks: Clean thoroughly and let dry completely before any snowfall. Inspect boards for cracks or soft spots that might hold moisture. Check all fasteners — wood moves seasonally, and loose screws become a safety issue. Apply a penetrating sealant if your last sealing was more than 18 months ago. Clear downspout splash zones — directing water away from your deck's frame extends its life significantly.
For composite decks: Sweep and clean — composite doesn't absorb water but grime can accumulate in the grooves. Check fasteners and any capping strips. Inspect the substructure for any moisture damage or pest activity. No sealing required.
Snow Management During Winter
- Use a plastic shovel on composite decking — metal edges can gouge the surface
- Don't use rock salt or calcium chloride — use sand or ice melt products safe for decking
- If snow is heavy, clear it regularly to reduce load on the structure
Spring Inspection: What to Look For
Once the snow melts (usually late April to May in Teton Valley), walk your deck carefully and check:
For wood decks: Warped, cracked, or cupped boards from freeze-thaw. Graying and checking (small surface cracks from UV). Any boards that feel soft or spongy underfoot — these are rotting. Rust staining from iron fasteners. The ledger board connection where the deck meets the house — this is a critical structural point.
For composite decks: Fasteners popped up or misaligned. Any surface scratches or gouges. Check under the deck for accumulated debris. Inspect posts and beam connections for any heaving from frost.
When to Call a Professional
If you find soft spots, significant structural movement, or anything that affects safety, don't wait. Minor issues become major ones over a Teton Valley summer. Landmark Craftsman offers deck inspections and repairs throughout Teton Valley and Jackson Hole. Call us at 208-709-4277.