Quck answer
Signs of rotted wood include a soft and spongy texture, discoloration, and a musty odor. To determine if wood has rotted, press your finger into the surface – if it sinks easily, it is likely rotted. Look for cracks, holes, or crumbling sections, as well as fungal growth or insect infestation. Inspect the wood for water damage or moisture stains. A hollow sound when tapping the wood can also indicate rot. Additionally, check for weakened structural integrity or pieces easily breaking off. Regularly inspecting and maintaining wood can prevent rot and ensure its longevity.
Wood and timber can be affected by two types of decay: dry rot and wet rot. Dry rot is caused by a living fungus, while wet rot is the natural decay of timber in the presence of moisture. Dry rot is more severe and requires the removal of infected timber and the use of chemical fungicide. Wet rot is treated based on the severity and location of the decay, sometimes by applying water-repellent finishes or replacing the entire timber. In all cases of wet rot, the source of moisture must be addressed to prevent further issues.
Identifying Dry Rot
Step 1
In the early stages, dry rot appears as off-white, cottony sheets on brickwork and timber. It may have a yellowish tinge in direct light.
Step 2
Mushroom-like bodies may grow over surfaces and finishes that are hiding dry-rotting timber, such as plaster or paint. These can be the first visible signs of dry rot.
Step 3
Inspect the timber for long, deep cracks running across the grain. These cracks may also show the off-white fibers of the fungus.
Step 4
Apply direct pressure to suspected wood affected by dry rot. Timber decaying from dry rot will buckle under pressure, often crumbling with even slight touches.
Identifying Wet Rot
Step 1
Check areas prone to moisture for wet rot, such as those exposed to high levels of moisture or near the ground where water collects.
Step 2
Paint and finishes may appear intact while concealing rotting wood underneath. Professionals and experienced DIYers may use a thin-bladed knife to lightly press into the timber. The knife should not penetrate deeply. Deep penetration indicates rot.
Step 3
Feel the wood in question. Timber affected by wet rot will feel spongy, even with finishes and paint, and will have a darker appearance compared to unaffected timber.
