Assertion: rafter | /r/CapableOf | form the roof
Facets:
Source sentences:
text: This forms a wide triangle shape on the top of a house, with a ceiling on the bottom and the two rafters forming the roof.
text: As we have briefly mentioned above, the birdsmouth joint is mainly used in forming traditional cut roofs to ensure that the rafters or joists that form the roof sit securely on top of the supporting wall plate.