Julian Decides That He Would Like the House Being Built

True/False

Julian decides that he would like the house being built for him,under contract with Porter Developers,to have a blue tile roof instead of a red tile roof.The two kinds of tile are equally available and are the same price,and no roofing of the house has yet been done.Porter alleges that this is a material alteration of the terms of the contract,since the roof is one-tenth of the value of the house,and that,therefore,it cannot be done without Porter's agreement to the change,which it will give only for a further payment of $5,000.Porter is right.