T R A D I T I O N A L S E R I E S C O T T A G E R O O F F R E E S T A N D I N G M O D E L • G R E E N H O U S E I N S T R U C T I O N S
Step 5C: Perlin Installation
Larger greenhouses have perlins to increase strenght
in roof structures.
A perlin can be a heavy or light channel. It usually
sits on top of a truss and is bolted to the roofbars in
the centre of the roof
(If you are using 2 perlins,
balance the spacing between the Gutter and the ridge).
Heavy perlin
(at least 1/4” thick)
requires 1/4” x 3/4”
bolts. Smaller greenhouses use a light channel –
bolts used are the same as the greenhouse bolts,
1/4” x 1/2.”
Installation of a perlin is a simple matter of sliding
the bolts into the roof bars and fastening the perlin
(see photos).
Bolt Perlin with the open side facing up if you wish
to use it for hanging baskets.
Glass Bar
1/2” x 3/4” SS
Bolt & Nut
Truss
1-1/2” x 3” x 3/16”
Perlin Support
– 23 –
Summary of Contents for Traditional Series
Page 1: ...ACF Greenhouses...
