I recently had cause to poke my head into the attic crawlspace and.
Tower poking through roof.
The lifting force generated by high winds over a roof can pull 3 4 nails out and peel off large sections of roofing they used 1 1 4 or longer to ensure penetration through all the shingle layers underlayment and deep enough into the sheeting to hold up to this abuse.
Yes these are roofing nails that have come through and splintered the roof decking you have a few options.
The landing pads are sold in packages of two.
You can cover the bottom of the rafters with aluminum soffit panels or individual.
Unless you live in the attic you have no worries.
There are at least 3 ways to fix it 1.
They may be round square hexagon and octagon anything that results in a narrow tower like structure attached to or part of the main structure.
Turrets had a very practical purpose for castle and fortress defense.
If you are using an approved roof sheathing that is less than 3 4 like 7 16 osb or 3 8 plywood then the nail must go all the way through.
The towers go on and off in seconds and you re supposed to leave the landing pads in place but they do look a bit goofy poking out of the roof.
Your contractor is correct in his interpretation of the national roofing contractors association standards as well as the ohio building code which state that nails must be long enough to penetrate through all roofing materials and extend through the underside of the deck or penetrate a wood plank by of an inch even if that surface is less than inch thick.
If that wall poking through the ceiling is a railing wall it will poke through every time.
You could also use the yaesu gs 050 thrust bearing however this will only allow masts up to 2 0 inches od.
Pull the wall back a little shorter in plan view 2.
Some with fresh sprouts poking.
Shouldn t take more than 30 seconds per corner.
But i am standing on the roof the bank of america tower a 39 floor building in the heart of hong kong s busiest district to see one of its highest farms.
I ll probably remove them in the off season.
Break the wall and make that last section invisible 3.
They do specify the shank to be 11 12 gauge the head diameter to be st least 3 8 but no specs on how long the shaft needs to be after passes through a 7 16 or 3 8 sheathing.
Take a cross section view right next to that wall select it break the top edge and pull that corner down a little bit.
The roof looks like it was put in by a medival torturer who was pinin for the fjords as it were.