Covered Cattle Yards. 
477 
Yards Feet 
— 224 run framed cross braces 4i" x 2\" 
— 504 „ purlins 6" x 2|" 
— 141 „ pole plates 9"~x 2i" 
— 188 „ 6" x 2|" plate to top of rafters 
— 94 „ 5^" x li" ridge 
— — No. 40sqrs.2i" x 2j" common rafters 
— 368 run 3" x 1" tilting fillet 
— — No. 32 sets wrought -iron straps and key 
— — No. 4 cast-iron pillars and fixing 
16 — run cast-iron mid-gutter 
31 — „ 5" half-round cast-iron eaves spouting 
14 ■ — ,, 3" circular cast-iron down piping 
445 — sup. slating with seconds Welsh grey 14" x 8" slates 
31 — run blue Staffordshire ridge . 
— 20 sup. rough plate-glass and fixing . 
Cost of roof slated . 
Cost of same roof if covered with pantiles 
The amount 110Z. 3s. 5d. for a yard-space of 300 yards shows 
the cost per yard of ground roofed over to be 7s. 4d. 
The same roof covered with pantiles would cost 961. 10s., 
and per yard roofed over 6s. 5d. 
£ 
i. 
d. 
2 
6 
8 
„ /s 
7 
1 
0 
» /* 
2 
7 
0 
„ /3 
2 
7 
0 
» /2 
0 
15 
8 
,. 9/ 
18 
0 
0 
.. /I 
1 
10 
8 
» 3/ 
4 
10 
0 
,, 30/ 
6 
0 
0 
.. 2/6 
2 
0 
0 
» 1/6 
2 
6 
6 
„ 1/3 
0 
1 ~ 
6 
„ 1/10 
40 
5 
10 
» 1/3 
1 
18 
9 
.» 1/ 
1 
0 
0 
. £110 
3 
5 
90 
10 
0 
Open Slated Roof. 
Fig. 3 shows section of a roof-truss designed for slates to 
be laid in a way known as open slating. This mode of covering 
Fig. 3. — Section showvng a Roof covered tcith Open Slating. 
SV'x2 
A. Section of Open Slating. B. Elevation of Open Slating. 
has been rather extensively adopted, and, with the eaves open- 
ings as shown, the ventilation obtained is fairly satisfactory. 
