Types of Mold Found in Coastal Bend Homes

Color:

Dark greenish-black

Risk:

Toxigenic

Found on:

Drywall, paper, ceiling tiles, and other high-cellulose materials that stay wet

The most notorious indoor mold. It produces mycotoxins linked to respiratory issues, neurological symptoms, and chronic fatigue. Requires strict containment and professional removal — never wipe with bleach, which can spread spores.

Color:

Yellow-green to black

Risk:

Allergenic / Opportunistic

Found on:

Walls, insulation, HVAC ducts, and damp fabrics

One of the most common indoor molds. Usually harmless to healthy adults, but can cause serious lung infections (aspergillosis) in people with weakened immune systems.

Color:

Olive-green to brown/black

Risk:

Allergenic

Found on:

Painted surfaces, wood, HVAC systems, and damp window sills

Extremely common both indoors and outdoors. Triggers sneezing, watery eyes, and skin irritation — and is a leading cause of asthma symptoms in mold-sensitive people.

Color:

Blue-green, velvety

Risk:

Allergenic

Found on:

Water-damaged drywall, wallpaper, carpet, and insulation

Spreads fast in damp materials. Prolonged exposure can cause chronic sinus infections and allergic reactions. Often found alongside Stachybotrys after flooding.

Color:

Dark green / brown, fuzzy

Risk:

Allergenic

Found on:

Showers, bathtubs, under leaky sinks, and in window frames

A common allergy trigger that thrives in damp, humid areas like Coastal Bend bathrooms. Known to worsen asthma, especially in children.

Color:

Pink to dark black

Risk:

Allergenic

Found on:

Wallpaper, painted surfaces, caulk, and window frames

Often starts pink and darkens to black over time. Common on damp caulk in bathrooms and around windows — a frequent cause of skin and eye irritation.

Color:

White to greenish

Risk:

Allergenic

Found on:

Wet wood, paper, and damp drywall

Grows rapidly on wet lumber and paper-backed materials. Can cause structural wood rot and triggers respiratory allergies in sensitive individuals.

Color:

Dark brown to black

Risk:

Allergenic

Found on:

Chronically wet walls, kitchens, and bathrooms

A reliable indicator of chronic water damage. Often found alongside Stachybotrys and signals a long-standing moisture problem that must be fixed.