Roof construction with stabilized z-purlins

Details Roof construction with stabilized z-purlins Roof construction with stabilized z-purlins

E - Fixed Constructions

04

C

20/20

E04C 3/02 (2006.01) E04B 7/00 (2006.01)

Patent

CA 1150030

ABSTRACT OF THE DISCLOSURE A roof construction having at least one roof slope is disclosed wherein at least four Z-purlins are laid across and secured to a number of rafters on the roof slope in a building and the roof deck is then secured on top of the Z-purlins. Tendencies toward Z-purlin roll over failure are counter balanced when at least two of the Z-purlins on the roof slope are oriented to face down- wardly of the roof slope and at least two of the Z-purlins on the roof slope are oriented to face upwardly of the roof slope. The downwardly and upwardly oriented Z-purlins may be arranged in pairs of adjacent Z-purlins, each pair com- prising one upwardly and one downwardly facing Z-purlin, or so that Z-purlins of one group face upwardly and Z-purlins of the other group face downwardly. The Z-purlins are sta- bilized by means of stiffeners secured to the purlins at bearing points and by means of tie straps extending between adjacent purlins.

362213

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