Greenhouses, their construction and equipment . sometimes so construct-ed that the gutterslopes from the endseach way toward thecenter and the water is carriedthat point,houses are away at Detaclied less corn- Fig. Z1.—Type of gutter (a) used on curved- eave houses monly fitted with gut-ters than formerly, onaccount of their inter-ference with the clear-ing of snow. A specialform of gutter is usedon curved-eave houses. wz / V7^ y/ Glazing Bars.—These are bars which arespaced along the sides and ends of the houseto which the glass isfastened. They aremuch the same as sashbars, which will bedesc
Greenhouses, their construction and equipment . sometimes so construct-ed that the gutterslopes from the endseach way toward thecenter and the water is carriedthat point,houses are away at Detaclied less corn- Fig. Z1.—Type of gutter (a) used on curved- eave houses monly fitted with gut-ters than formerly, onaccount of their inter-ference with the clear-ing of snow. A specialform of gutter is usedon curved-eave houses. wz / V7^ y/ Glazing Bars.—These are bars which arespaced along the sides and ends of the houseto which the glass isfastened. They aremuch the same as sashbars, which will bedescribed later, exceptthat they are usuallysomewhat smaller andare not provided with to conduct. , . ^ 1 Fig. 38.—Cross section of the drip. Corner bars corner bar STRUCTURAL MATERIAL 69 serve the same purpose as glazing bars, ex-cept that they are so milled that they willtake the glass from both the sides and theends of the house. One is used at eachcorner. Side Posts.—These posts bear the weightand side strain of the roof. They may beof wood, gaspipe, or structural iron or size will depend on the height of thewall and the width and construction of thehouse. Wood posts 4x4 inches, 2 or 2/^-inch gaspipe, or /^ x 3-inch structural ironor steel are usually considered amply strongfor most houses. The gaspipe and steelposts are usually set in concrete and mason-ry. It is best to set the wood posts in thesame manner. Occasionally the structuralsteel posts are bolted to iron sills which capa concrete or masonry wall. Sash Bars.—The sash bars are among themost important of all the members which goto make up a greenhouse. They must bestrong enough to carry the weight
Size: 1765px × 1416px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorkorangejuddc
