The word(s) "roof" appears 65 time(s) in 63 verse(s) in Quran in Muhammad Pickthal translation.

(21) When ye were on the near bank (of the valley) and they were on the yonder bank, and the caravan was below you (on the coast plain). And had ye trysted to meet one another ye surely would have failed to keep the tryst, but (it happened, as it did, without the forethought of either of you) that Allah might conclude a thing that must be done; that he who perished (on that day) might perish by a clear proof (of His Sovereignty) and he who survived might survive by a clear proof (of His Sovereignty). Lo! Allah in truth is Hearer, Knower.

(22) Hath not the fame of those before them reached them - the folk of Noah, A'ad, Thamud, the folk of Abraham, the dwellers of Midian and the disasters (which befell them)? Their messengers (from Allah) came unto them with proofs (of Allah's Sovereignty). So Allah surely wronged them not, but they did wrong themselves.

(23) We destroyed the generations before you when they did wrong; and their messengers (from Allah) came unto them with clear proofs (of His Sovereignty) but they would not believe. Thus do We reward the guilty folk.

(24) Then, after him, We sent messengers unto their folk, and they brought them clear proofs. But they were not ready to believe in that which they before denied. Thus print We on the hearts of the transgressors.

(25) Is he (to be counted equal with them) who relieth on a clear proof from his Lord, and a witness from Him reciteth it, and before it was the Book of Moses, an example and a mercy? Such believe therein, and whoso disbelieveth therein of the clans, the Fire is his appointed place. So be not thou in doubt concerning it. Lo! it is the Truth from thy Lord; but most of mankind believe not.

(26) He said: O my people! Bethink you, if I rely on a clear proof from my Lord and there hath come unto me a mercy from His presence, and it hath been made obscure to you, can we compel you to accept it when ye are averse thereto?

(27) They said: O Hud! Thou hast brought us no clear proof and we are not going to forsake our gods on thy (mere) saying, and we are not believers in thee.

(28) He said: O my people! Bethink you: if I am (acting) on clear proof from my Lord and there hath come unto me a mercy from Him, who will save me from Allah if I disobey Him? Ye would add to me naught save perdition.

(29) He said: O my people! Bethink you: if I am (acting) on a clear proof from my Lord and He sustaineth me with fair sustenance from Him (how can I concede aught to you)? I desire not to do behind your backs that which I ask you not to do. I desire naught save reform so far as I am able. My welfare is only in Allah. In Him I trust and unto Him I turn (repentant).

(30) Hath not the history of those before you reached you: the folk of Noah, and (the tribes of) A'ad and Thamud, and those after them? None save Allah knoweth them. Their messengers came unto them with clear proofs, but they thrust their hands into their mouths, and said: Lo! we disbelieve in that wherewith ye have been sent, and lo! we are in grave doubt concerning that to which ye call us.