foundry proof — a proof pulled for a final checking before printing plates are made.
galley proof — a proof, originally one set from type in a galley, taken before the material has been made up into pages and usually printed as a single column of type with wide margins for marking corrections.
gambrel roof — a gable roof, each side of which has a shallower slope above a steeper one. Compare mansard (def 1).
raise the roof — the external upper covering of a house or other building.
Four-or-more syllable rhymes
burden of proof — The burden of proof is the task of proving that you are correct, for example when you have accused someone of a crime.