as Indicated on the plan (see Cut No. B-M. -9) 



Two or more joints should not occur on the same 

 line of foundation posts. Arrange to have the splices 

 mnde over foundation posts of different sets. 



ROOF. 



Materials for roofs at different elevations are 

 provided. At elevations within the ranges mentioned use 

 the roofs of stated pitches. Exception to the above should 

 occur only where snowfall is not a source of hazard fcs on 

 some of the southern Forests and on the Modoc. 



Rafters and other members of the roof frame should 

 be of selected straight grain lumber; 1st choice Douglas fir, 

 2nd choice white fir, 3rd choice yellow pine, free from knots 

 and other imperfections. Too much attention cannot be given 

 the selection of the best sticks of the lumber order for 

 rafters. 



Where roof trusses are used fasten the members 

 securely with lOd. nails in members 1 inch thich and with 

 20d. nails in members 2 inches thick. 



Care should be taken to cut the rafters true in 

 order that they rest firmly on the plate and meet squately 

 at the apex of the roof. 



Roof projections should be sheeted solid with 

 1" x 12" rough or dressed lumber. 



Rafter ends should be finished in the manner illus- 

 trated by the diagram "Section". 



Use for roof covering either - 

 (l) Star A Star red cedar or redwood shingles 

 Shakes of white fir or sugar pine 



Lay shingles 4" to weather on sheeting 8 inches 

 on center. Nail them with 3d. fine galvanized shingle nails . 

 Lay the bottom course of shingles double and project it ! 

 inches beyond the sheeting. Allow a 1 inch projection of 

 shingles over the barge board trim. Table No. B.M.-2 gives 

 data on shakes. If shakes are used allow 1-^ inches projec- 

 tion at eaves and 1 inch projection over barge board trim. 



-17- 



