Worker applying waterproof sealant with a roller on a flat commercial roof.
Schlüsselwörter
men at work,
hand,
glove,
roller,
apply,
waterproof,
roof,
building,
construction,
maintenance,
repair,
industrial,
commercial,
grey,
dark,
liquid,
groove,
seam,
sky,
protection,
coating,
surface,
flat,
tool,
equipment,
labor,
job,
project,
work,
professional,
skill,
detail,
process,
application,
layer,
material,
hard-wearing,
weather,
resistant,
secure,
finish,
smooth,
even,
widener,
cover,
seal,
protect
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