A construction worker applies black waterproofing sealant to a building foundation with a trowel in a trench.
Schlüsselwörter
men at work,
construction,
foundation,
waterproofing,
tar,
black,
building,
trench,
apply,
trowel,
job,
labor,
manual,
site,
project,
home,
house,
repair,
renovation,
protection,
barrier,
coating,
material,
concrete,
wall,
ground,
dirt,
excavation,
tool,
equipment,
safety,
glove,
uniform,
skilled,
trade,
craft,
industry,
development,
structure,
footed,
support,
underground,
moisture,
damp,
professional,
contractor
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