CHAPTER XX 



GREENHOUSE CONSTRUCTION FOR ROSE 

 GROWING 



No. 1 is an outside view of two iron frame houses of the 

 commercial type, 20 feet wide and 50 feet long, set ridge and 

 furrow, one of the houses shown being used for growing 

 Carnations and such like stock, and the other for Roses of low 

 growth such as The Bride, Bridesmaid, etc. The construction 

 of these houses consists of a flat iron rafter, set every 8' 

 3" apart, each rafter being secured to a cast iron foot 

 piece, set in concrete below grade. The rafters are joined 

 together by means of angle iron roof purlins which support the 

 wooden roof bars between the iron rafters. The eaves of the 

 house in this case consist of a cypress eaves plate, but the same 

 construction of house could be furnished with either an iron "X" 

 or an angle iron eaves plate, either of which is more desirable 

 than the wood, as they are ice clearing and prevent the accumu- 

 lation of snow on the roof. 



Between the grade and wood sill in this case double board 

 and paper are used, but, in many instances, concrete or hollow 

 tile is found much more desirable. Where the houses join to- 

 gether an iron gutter supported on pipe columns is used. Each 

 house is furnished with two lines of continuous roof ventilation 

 operated with standard sash opening apparatus. 



The benches consist of cypress, the legs and bearers being 

 made of 2"x4" material and the tops and sides of 1" thick 

 material. These houses were glazed with 16"x24" double 

 thick "A" glass, set the 16" wide way; the heating apparatus 

 consists of steam. The house used for Roses is piped to main- 

 tain a temperature of 55 to 60. Of course, the same char- 



