PATENT ROOFINGS 259 



pounds per square. It costs about $3.00 per square laid on the roof. 



The above named company makes several other brands of asbestos 

 roofing the cost of which is about the same as the "Standard." 



Asbestos roofing felts may be purchased which are used for roof- 

 ing in one, two or three-ply, and are laid in the same way as for gravel 

 roofing. 



Carey's Roofing. Carey's Magnesia Flexible Cement Roofing, 

 manufactured by the Philip Carey Manufacturing Company, Lockland, 

 Ohio, is made by putting a layer of asphalt cement composition on a 

 foundation of woolen felt and imbedding a strong burlap in the upper 

 surface of the cement. After laying, the burlap is covered with a tough 

 elastic paint which when it dries gives a surface similar to slate. The 

 roof is practically acid proof and burns very slowly. It comes in rolls 

 29 inches wide and containing sufficient material to lay one square of 

 roof. The roofing is made in two weights, standard weighing 90 

 pounds per square, and extra heavy weighing about 115 pounds per 

 square. A special flap is provided on one side to cover the nail heads. 

 The roofing is very pliable and can be used for flashing and for gutters. 

 It should be laid on sheathing and is very easily and cheaply applied. 

 It may be laid over an old shingle or corrugated iron roof. It costs 

 about $2 . 75 to $3 . 25 per square laid on the roof. 



Granite Roofing. Granite Roofing, manufactured by the Eastern 

 Granite Roofing Company, New York, is a ready-to-lay composition 

 roofing with manufactured quartz pebbles imbedded in its upper sur- 

 face. It is a very satisfactory roofing and is quite extensively used. It 

 costs about $2 . 75 to $3 . 75 per square laid on the roof. 



Ruberoid Roofing. P. & B. Ruberoid Roofing, manufactured by 

 the Standard Paint Co., New York, is quite extensively used and has 

 given good satisfaction. The following description is taken from the 

 maker's catalog: "No paper whatever is used in the manufacture of 

 Ruberoid Roofing. It has a foundation of the best wool felt, except 

 in the case of the /^-ply grade which is a combination of wool and hair. 

 This is first saturated with the P. & B. water and acid proof compound, 



