Assertion: metal roofing | /r/MadeOf | steel
Facets:
value: primarily
type: DEGREE
value: generally
type: DEGREE
Source sentences:
text: Residential metal roofing is generally made of steel, aluminum, or copper.
text: Most metal roofing is made from steel, which is heavier and sturdier than aluminum (though some metal roofing material is called “steel roofing,” it may be made from any of several materials, including alloys).
text: Residential metal roofing is primarily made of aluminum or steel, although copper, zinc, and titanium can be used for some homes.
text: Most metal roofing is made from steel, which is heavier and sturdier than aluminum (though some metal roofing material is called “steel roofing,” it may be made from any of several materials, including alloys).