hello all
I was a technician working directly for dns for 5 yrs 1 week and 1 day. I now work for a rsp in wisconsin going on my 6th year in the business, without getting too cocky i have never installed a chimney strap mount and never will, because i never needed to. I have used pre-existing ones as the customer was very secure in their decision to reuse it and installed one for training purposes. My reasons for never using them, aside from the potential health hazard it may pose as discussed asllready, are several : 1. they aren't much use for any dish requiring struts 2. they can be dangerous to install, cuts from those straps hurt/ access to the chimney may be limited preventing safe install leading to falls from the ladder/roof. 3.there are so many other ways to mount the dish that it is typically an unthought about way of installing a dish to most installers. 4. i hate digging holes but i would rather do a pole mount before strapping one of those on any chimney(even my own). 5.they take up too much room in my truck
thats things from a tech perspective hope its of some assistance
p.s. tapcon mounting is not approved by dish any longer, it must be lag bolted using lead masonry anchors directly to the brick not in the mortar.