
How Weather and Humidity in DFW Affect Building Exterior Cleaning Schedules
DFW climate accelerates algae growth and staining. Heat and humidity create perfect conditions for biological growth. Regular cleaning is necessary.
The sides and back of your building deserve the same attention as the front.

Building envelope cleaning covers the exterior walls of your structure—front, sides, and back. This includes algae removal, soft washing for delicate surfaces, graffiti cleanup, and general grime removal.
If someone drives around the side or back of your building, they should see the same level of care as the front entrance.
In humid climates—Texas, Florida, the Southeast—black algae is a constant problem. It starts as a faint discoloration and turns into dark streaks that make your building look decades older than it is.
And then there's graffiti. The longer it sits, the more it invites additional tagging. Fast removal sends a message that the property is being watched and maintained.
Building envelope cleaning is the removal of dirt, algae, mildew, oxidation, and staining from the exterior surfaces of a commercial building - walls, columns, canopies, and trim. In Dallas and across DFW, humidity and Texas heat make black algae streaking common on light-colored surfaces. Regular cleaning restores curb appeal and slows long-term staining.
Pressure washing uses high water pressure; soft washing uses low pressure combined with cleaning solutions that kill algae and mildew at the root. On building exteriors in DFW, soft washing is almost always the right choice because pressure can damage stucco, painted surfaces, and mortar. We use soft washing for facades and reserve pressure for concrete and hardscape.
Black algae is treated with a biocide solution applied via soft washing, then rinsed. It does not come off with pressure alone - the roots have to be killed or the streaks return within weeks. In Dallas the humid summer months are prime algae season, so we recommend treatment in early summer to prevent visible staining.
Once a year is typical for most commercial buildings in DFW. Buildings near heavy traffic, restaurants, or bodies of water may need it twice a year because of exhaust residue and algae growth. Regular cleaning is far cheaper than repainting, and it protects the underlying surface from long-term damage.

DFW climate accelerates algae growth and staining. Heat and humidity create perfect conditions for biological growth. Regular cleaning is necessary.

Soft washing uses low pressure and chemicals. Pressure washing uses high pressure and force. Wrong method damages building. Right method cleans.

Building envelopes accumulate dirt, algae, and biological growth. Regular cleaning protects structural integrity and appearance.