Decks questions, answered
How long does a deck last?
It depends on materials, construction quality, climate and maintenance. A deck with a well-built, well-protected frame and regular care lasts much longer than one with a neglected or poorly flashed frame. The structure, not the decking surface, usually determines lifespan.
Composite or wood: which is better?
Composite needs less maintenance and doesn't rot or splinter, but costs more up front and can get hot in the sun. Wood costs less, looks natural and is repairable, but needs regular cleaning and finishing. The frame underneath matters for both.
How often should I inspect my deck?
At least once a year, and before large gatherings. Check the ledger connection, footings, posts, joists, railings, stairs and fasteners. Probe wood for softness and look for rust and loose connections.
What is a deck ledger and why does it matter?
The ledger is the board that attaches a deck to the house. It must be securely fastened with bolts or structural screws and flashed to keep water out. Failed ledger connections and rot behind the ledger are common causes of deck problems.
Do I need a permit to build a deck?
Many jurisdictions require permits for decks attached to the house, above a certain height, or over a certain size. Requirements vary, so ask your contractor or local building department.
How often should a wood deck be stained?
It depends on sun exposure, climate and the product. Sunny decks need refinishing more often. Signs it's time include graying, water soaking in rather than beading, and worn spots in traffic areas.
Why is my composite deck so hot?
Composite and PVC absorb heat from the sun, especially darker colors. Lighter colors, heat-reflective product lines, shade structures and orientation help.
Can I build a deck over an old patio?
Sometimes, with a low-profile frame and proper drainage, but the patio must be stable and water must drain away. Ask a contractor to assess whether it's a good base.
What railing height is required?
Railing height and baluster spacing requirements are set by building codes and vary by jurisdiction and deck height. Your contractor should build railings to local code.
How do I clean a deck without damaging it?
Use a soft brush, water and a cleaner suited to the decking material. Avoid aggressive pressure washing, which can damage wood and void some composite warranties.
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