Deck builders are trained to spot signs of rot, even in hidden areas. They know where to look and what to look for. Rot often starts in places where water collects, like corners, joints, and under the deck boards. Builders check for soft, discolored, or crumbling wood, which are common signs of rot. They also look for mold or mildew, as these can indicate moisture problems. The expertise of deck builders Richmond Hill helps find rot early, preventing serious structural issues.
Find below five ways deck builders spot signs of rot.
Using moisture meters to detect hidden moisture
Rot starts when wood stays wet for too long. Builders use moisture meters to find damp spots that are not visible. They press the device against the wood, and it measures how much moisture is inside. High readings mean there could be hidden rot. This tool helps builders find problem areas without tearing up the deck unnecessarily.
Probing wood with a screwdriver
A simple screwdriver is one of the best tools for finding rot. Builders press the tip into the wood to check for softness. Healthy wood resists pressure, while rotting wood feels spongy or crumbles easily. They use this method on deck boards, posts, railings, and joists—especially in areas that are often wet or shaded.
Checking for discoloration and surface changes
Rotting wood often changes color. Builders look for dark spots, streaks, or patches that seem different from the surrounding wood. They also check for bubbling paint, peeling finishes, or areas where the wood looks swollen. These signs usually mean water has soaked into the wood, which can lead to rot over time.
Inspecting joints, corners, and hidden spaces
Rot loves hidden spaces where water can collect. Builders carefully inspect joints, corners, and the undersides of deck boards. They pay extra attention to areas near downspouts, gutters, or places where two pieces of wood meet. Even if the surface looks fine, moisture can hide underneath. Builders may remove a few boards to get a better look if they suspect hidden damage.
Looking for mold and mildew growth
Mold and mildew grow where there is moisture. While mold itself does not cause rot, it is a sign that water has been sitting on the wood. Builders look for black, green, or white patches of mold, especially in shaded areas. Finding mold often leads them to discover damp, rotting wood nearby. Cleaning the mold helps, but the real fix is addressing the water problem and replacing any rotted sections.
To conclude
Deck builders are skilled at finding and fixing water damage and rot. They use tools like moisture meters, simple probing techniques, and careful inspections to spot hidden issues. Early detection prevents costly repairs and keeps decks safe.
