From The Collaborative International Dictionary of English v.0.48:
Roof \Roof\, v. t. [imp. & p. p. Roofed; p. pr. & vb. n. Roofing.] 1. To cover with a roof. [1913 Webster]
I have not seen the remains of any Roman buildings that have not been roofed with vaults or arches. --Addison. [1913 Webster]
2. To inclose in a house; figuratively, to shelter. [1913 Webster]
Here had we now our country's honor roofed. --Shak. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Roofing \Roof"ing\, n. 1. The act of covering with a roof. [1913 Webster]
2. The materials of which a roof is composed; materials for a roof. --Gwilt. [1913 Webster]
3. Hence, the roof itself; figuratively, shelter. "Fit roofing gave." --Southey. [1913 Webster]
4. (Mining) The wedging, as of a horse or car, against the top of an underground passage. --Raymond. [1913 Webster]