A climbing vine can make a wall look charming while hiding the bottom
of the siding. Shrubs can do something similar around a vent or outdoor
HVAC unit. I am not suggesting a bare yard; I am suggesting enough space
to see, dry, and service the building.
Walk the perimeter and look for branches rubbing shingles or trim,
plants covering an exhaust outlet, and leaves collecting in a roof
valley or against a wall. Prune reachable vegetation with care for the
plant and for nearby wiring. Keep soil and mulch from bridging siding or
wood trim. Leave the clearance called for by an appliance manufacturer
around outdoor equipment; a single universal distance would be a poor
fit for every model.
Cleaning follows the
material
Siding gets dirty, but a powerful pressure washer can drive water
behind cladding or damage a surface. Use the manufacturer’s cleaning
method and a gentle approach where appropriate. If growth reappears in
one damp area, look for a drainage or leakage cause instead of
repeatedly washing the stain. Roof work and high branches are jobs for
qualified trades with proper access and equipment.
The
EPA’s moisture guidance is a useful reminder that drying and
drainage matter at exterior assemblies. Clearing a view also makes it
easier to notice a loose flashing, blocked vent, or pest entry point
early.
For a roofer, landscaper, or siding professional, use the contacts on
my Helpful
Resources page. The Homeowner
Tools & Supplies guide lists a few practical upkeep items. I
would leave steep roofs and lines near power conductors to pros.