40 HOW TO BUILD A SILO. 



Silo Sheeting and Siding.— The character of the siding and 

 sheeting -will vary considerably according to conditions and the 

 size of the silo. 



Where the diameter of the silo is less than 18 feet inside and 

 not much attention need be paid to frost, a single layer of beveled 

 siding, rabbetted on the inside of the thick edge, deep enough 

 to receive the thin edge of the board below, will be all that is 

 absolutely necessary on the outside for strength and protection 

 against weather. 



If basswood is used for siding, care should be taken to paint 

 it at once, otherwise it will warp badly if it gets wet before 

 painting. 



In applying the sheeting begin at the bottom, carrying the 

 work upward until staging is needed, following this at once with 

 the siding. Two 8-penny nails should be used in each board in 

 every stud, and to prevent the walls from getting "out of round" 

 the succeeding course of boards should begin on the next stud, 

 thus making the ends of the boards break joints. 



When the stagings are put up, new stays should be tacked 

 to the studs above, taking care to plumb each one from side 

 to side; the siding itself will bring them into place and keep them 

 plumb the other way, if care is taken to start new courses as 

 described above. 



Forming the Plate — When the last staging Is up the plate 

 should be formed by spiking 2x4's cut in two-foot lengths, in the 

 manner of the sill, and as represented in Fig. 8, down upon the 

 tops of the studs, using two courses, making the second break 

 joints with the first. A still better method is to use 2x6 plank, 

 cut to the circle as shown in C, Fig. 2. 



The Lining of the Wooden Silo. — There are several ways of 

 making a good lining for the all-wood round silo, but whichever 

 method is adopted it must be kept in mind that there are two 

 very important ends to be secured with a certainty. These are 

 (1) a lining which shall be and remain strictly air-tight, (2) a 

 lining which will be reasonably permanent. 



Lining of Half-inch, Boards and Paper. — ^Where paper is used 

 to make the joints between boards air-tight, as represented in 

 Pig. 3, it is extremely, important that a, quality which will not 

 decay, and which is both acid and water-proof be used. A paper 

 which is not acid and water-proof will disintegrate at the joints 

 in a very short time, and thus leave the lining very defective. 



The best paper for silo purposes with which we are acquainted 

 is a 3-ply Giant P. and B. brand manufactured by the Standard 

 Paint Co., of Chicago and New York. It is thick, strong, and acid 

 and water-proof. A silo lining with two thicknesses of good 

 fencing having only small knots, and these thoroughly sound and 

 not black, will make an excellent lining. Great care should be 

 taken to have the two layers of boards break joints at their 

 centers, and the paper should lap not less than 8 to 12 inches. 



