8+ Roof Purlin Cleats. Web purlin is important because, without it, there’s no frame for the sheeting on the roof to rest on, making purlins critical to the roof’s structure. I got 4 estimates before going with hull and sons, their prices were good.

These are available in sizes to suit our range of. Web 618 w 7th st. Web bolting of stramit ® purlins or girts to cleats and at lapped joints should be by standard m12 grade 4.6 bolts unless the shear capacity of the bolt is exceeded as indicated in the.