rafters; 011 the under-side of the rafters is a layer of one-ply W.P. paper; ceiled 

 under this is %-iiK'h T. and G. flooring. Joists are placed across from one rafter 

 to the one on the opposite side, so that the ceiling proper is 7 feet G inches from the 

 earth floor. Any roofing material desired may be placed cm the roof-boards. 



In the centre of the building and at intervals of S feet are ventilators extending 

 to ventilator-stacks above the roof. These are 6 x G inches, with a valve at the 



lower end which is opened at times when it is not too warm or too cold without. 

 To further provide for the ventilation of the storage, the building has large doors 

 at either end which are opened at night during the fall, so that the cold night air 

 can be admitted. 



