DRY ROT / WET ROT
Rot is a type of fungal decay that causes wood to become brittle and crumble. It occurs when wood has a moisture content above 20% and is caused by fungi like Serpula lacrymans. Without eliminating the source of moisture, removing all decayed wood, treating surrounding surfaces with a fungicide, and finally, replacing the damaged wood with pressure-treated lumber, rot can continue to spread.
The main difference between dry rot and wet rot lies in the specific types of fungi that cause them and their ability to spread. Both require an initial moisture source, but dry rot is more aggressive and destructive because it can spread across dry materials in search of more wood to consume, while wet rot is confined to persistently damp areas.
OVERGROWN VEGETATION
When vegetation grows too close to a house, it can cause a surprising number of problems—both immediate and long-term. Plants touching siding or sitting too close trap moisture and lead to rot. Overgrown shrubs and vines provide shelter and “bridges” for pests like ants, termites, rodents and spiders. Roots can enter cracks or joints, apply pressure to slabs and walkways, and thick vegetation against the foundation hides cracks, damage, and termite tubes. Overhanging limbs drop leaves and needles, clogging gutters. Excess debris causes water backup leading to fascia rot, gutter damage, and leaks. Branches banging in the wind can damage shingles or tiles.
Here are recommended clearances/industry-standard safe distances:
- Shrubs from siding: 1–2 feet minimum
- Tree branches from roof: 6–10 feet clearance
- Soil & mulch from siding: Keep 6 inches of exposed foundation
- Vines: Avoid direct contact; remove and control
- Plants from air conditioner: 2–3 feet clearance on sides, 5 feet above
IMPROPER GRADING
Improper lot grading can lead to a host of water-related problems around a home. Which can lead to bigger problems down the road. Water pooling around the foundation can lead to cracks, structural movement, basement/crawlspace moisture, and encourages mold growth and wood rot. Continuous soil erosion can compromise concrete pads, walkways, and driveways. Settling of structures like deck posts, AC pads, or sidewalks can begin to tilt or sink.