200 



The Florists' Review 



March 10, 1921. 



This simple line sketch shows 

 you the truss stiffening rod run- 

 ning under the ridge between 

 each rafter. 



At the left you have a cross sec- 

 tion of ridge midway between 

 rafters, showing you the second- 

 ary rafter and truss Strut. 



Hitchings Stif feners 



For 



Ridge 



And Roof 



p 



w 



Spacing rafters ]2 It. I'a in- 



apart is one tint;. 



Making the Irame just as stitf 



and strong; as when the spacing 



was S ft. 4 in. is (luite another. 



Take the (|ueition of rafters 



alone, m say a house 200 ft. long. 



In the narrow spacing 2') pairs of 



rafters are used. 



In the wide spacing, there are 17 



or S less pairs. 



When you take rafters out of a 

 greenhouse construction, it's a 

 pretty serious matter. 

 Tiiat strength must \>c put back 

 some otiier way. 

 To do it, we first use deeper 

 rafters. 



Then we use heavier purlins, se- 

 cured Id the rafters by an extra 

 long fitting, extending the depth 

 of the rafters and well out on 

 the purlin itself. 



The ridge is stiffened and held 

 straight and true by a truss rod 

 running between every pair of 

 rafters. 



Eunning from it i)erpendicular to 

 the eave and through each pur- 

 lin, is a sag rod. 



To overcome any possibility of 

 eave sag, a secondary post is 

 placed midway between the reg- 

 ular posts. 



The cuinbined result of all of 

 which 's, that the wide spaced 

 house as we build it, is just as 

 strong as the old spacing and the 

 house is decidedly LIGHTER, 



.lust as strong and lighter. 



That's what you are looking for, 

 isn't it? 



You know we go anywhere for 

 business. 



Or to talk business. 



m 



Look carefully and you can see the secondary 

 rafter and sai.' rod running from it through the 

 purlins lo the eave and secondary post. 



NEW YORK 



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Home Offices and Factory, ELIZABETH, N. J. 



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 294 Washington Street 





