23 MARCH 1912, Page 14

[To THE EDITOR OP THE "SPECTATOR."]

Sin,—Mr. Robinson in his interesting letter on the above in your last week's issue suggests that the cottage of the future will have a flat concrete roof. The general adoption of new forms of construction depends a good. deal on the cost of the same, especially in cottage property. I have lately obtained prices for both flat concrete roof and pitched roof covered with tiles. The result was that the pitched roof cost 33 per cent. less. It should also be borne in mind that in some rural districts there is a difficulty in obtaining cheaply suitable material for making good concrete ; in addition the price of cement is rapidly rising.—I am, Sir, &c., A. GOODWIN Bnoww, A.M.Inst.C.E.