New Jersey weather puts every outdoor surface through changing conditions—from spring pollen and summer storms to falling leaves, freezing temperatures and snow. Composite decking is designed to require far less upkeep than traditional wood, but low maintenance does not mean no maintenance. A simple seasonal routine can help your deck stay clean, safe and ready to enjoy.
This guide explains how New Jersey homeowners can care for composite decking, including Fiberon products, without using methods that may damage the boards. Always check the care instructions for your specific decking collection before using a cleaner or power washer.
How Often Should You Clean a Composite Deck?
Plan on a thorough cleaning at least twice a year—typically in spring and fall—and sweep away leaves, pollen and other debris whenever it begins to accumulate. Fiberon recommends cleaning as often as needed and at least twice annually. Keeping the spaces between boards clear also helps water drain instead of pooling around organic debris.
For ordinary dirt, start with the gentlest approach: warm water, mild soap and a soft, non-metal brush. Scrub in the direction of the board’s grain, then rinse thoroughly with a garden hose.
A Four-Season Deck Maintenance Checklist for New Jersey
Spring: Remove Winter Buildup
- Sweep away leaves, twigs and material trapped between boards.
- Wash off pollen and winter residue with mild soap and water.
- Check stairs, railings and gates for movement.
- Look below the deck for standing water, poor drainage or blocked airflow.
- Confirm that downspouts direct water away from the deck structure.
Summer: Protect High-Use Areas
- Clean food, grease, sunscreen and drink spills promptly.
- Use breathable, colorfast outdoor rugs rather than rubber-, vinyl- or latex-backed mats.
- Lift or move planters occasionally so moisture can evaporate beneath them.
- Keep grill grease off the decking and use a manufacturer-appropriate protective mat.
- Inspect high-traffic steps and railing connections during the busiest season.
Fall: Keep Leaves and Debris Moving
- Sweep or blow leaves before they decompose and stain the surface.
- Clear the gaps between deck boards to maintain drainage.
- Complete the second thorough cleaning of the year.
- Trim vegetation that limits airflow around or beneath the deck.
- Schedule repairs before freezing weather makes small issues harder to address.
Winter: Remove Snow and Ice Carefully
- Use a plastic snow shovel—never a metal shovel or sharp-edged tool.
- Push parallel to the board direction when practical to reduce the chance of catching an edge.
- Do not use sand, which can scratch the deck surface.
- Fiberon advises using calcium chloride-based ice melt or rock salt without added colorant.
- Avoid repeatedly piling heavy snow in the same location.
Can You Pressure-Wash Composite Decking?
A garden hose is usually the safest choice. If you use a pressure washer, follow the limits for your exact product and test an inconspicuous area first. Current Fiberon guidance advises using extreme caution, keeping pressure below 2,500 psi and maintaining at least 12 inches of distance, with a wide fan-tip or oscillating nozzle. Wash in the direction of the grain. Pressure washing is not recommended when mold or mildew is present.
Different decking collections may have different instructions, so never assume one pressure setting is safe for every composite or PVC board.
What Should You Avoid on Composite Decking?
- Metal shovels, wire brushes and abrasive scrubbers
- Harsh chemicals or unapproved solvents
- Chlorine bleach unless specifically permitted by the manufacturer
- Stain, paint or sealer intended for wood decking
- Rubber, vinyl or latex-backed mats that can trap moisture or discolor boards
- Ice melt containing dyes or colorants
- Leaving wet leaves, mulch or planters in one place for long periods
Do Not Forget the Structure Under the Deck
A clean surface is only part of deck care. At least once a year, look for loose railings, damaged fasteners, movement in stairs, blocked ventilation, poor drainage and visible deterioration in the framing or connections. A surface-level cleaning cannot correct a structural problem.
If you notice soft wood in the framing, unusual movement, separating connections, recurring standing water or a railing that feels loose, stop using the affected area and have it evaluated by a qualified professional.
Fiberon Maintenance and Your Warranties
Fiberon decking does not need the sanding, staining or sealing associated with wood. However, homeowners should follow the manufacturer’s care instructions and retain purchase and product records. Material warranties are supplied according to the manufacturer’s terms and are separate from Cube Carpentry’s 5-year workmanship warranty covering installation-related defects.
For product-specific instructions, review Fiberon’s official Deck Maintenance & Care guidance.
When Should You Call a Deck Professional?
Routine sweeping and washing are homeowner-friendly. Professional help is appropriate when you find structural movement, deteriorated framing, loose railings, unsafe stairs, drainage problems, damaged boards or a deck that may be nearing the end of its service life.
Cube Carpentry builds and renovates outdoor living spaces across New Jersey. See our deck-building services, browse the Gallery, explore our Latest Projects, or request a free estimate.
Related Deck Maintenance & Upgrade Resources
- Fiberon Deck Builder in New Jersey
- WOLF PRO Deck Builder in New Jersey
- Fiberon + RDI Project in Basking Ridge
- WOLF PVC + RDI Project in Bridgewater
- Deck Resurfacing vs. Full Replacement
Quick Composite Deck Care Checklist
- Clean thoroughly in spring and fall.
- Sweep leaves and pollen regularly.
- Keep board gaps and drainage paths clear.
- Clean spills promptly with a manufacturer-approved method.
- Use plastic tools for snow removal.
- Inspect railings, stairs, fasteners and framing annually.
- Follow the care guide for your exact decking brand and collection.
This article provides general maintenance information. Always follow the current written instructions supplied by the manufacturer of your specific decking and railing products.
