Assertion: roofer | /r/CapableOf | prepare surface
Facets:
value: for waterproofing
type: PURPOSE
value: for new shingles
type: PURPOSE
Source sentences:
text: Before adding new layers, roofers smooth out rough spots and prepare a surface for new shingles or waterproofing.
text: To prepare surfaces for waterproofing, they hammer and chisel away rough spots or remove them with a rubbing brick, before applying a coat of liquid waterproofing compound.