I remember seeing an ad in PDB about a product that was installed onto the joists with roofing nails.
Black plastic with little upright pieces that spring into the grooves on the sides of the boards. After installing all the pieces on the joists, you step on the board and it snaps in.
I thought it might be good on the solid surface of an ugly balcony.
I remember the product I think one of my suppliers has a little mock-up sample at the counter.
Should be there tomorrow if I remember to see it I'll let you know.
If you got room basket weave the frame and leave it floating, works really well and gives plenty of cross ventilation. Against the wall use a couple stainless boat scuppers so high humidity air doesn't get stuck up around the wall of the house.
I once used 2x6 sleepers and carriage bolts from underneath up to secure steel surface mount posts. Was very solid using leverage of front to back. For the sides I screwed the deck perimeter. I was very small and over a concrete stoop. Otherwise I would have had to address penetrating the roof and flashing it for posts and floating a sleeper deck
The last time I did it on a roof top I had to install the posts first and then they came back and flashed it. Not sure how you would do it after the fact.
It was one of those vinyl vacuum seal roofs. It worked out well but I couldn't help but wonder if that stuff is exposed to the sun would it crack. They said it wouldn't but I guess it doesn't really matter because it's covered up from the sun now.
I'm really not a fan of steel posts in the first place, here they'll rust out if they're not stainless or aluminum. An ipe post flashed correctly will last forever anywhere.
would 1/2" sleepers be able to hold the fasteners for the clips? with the addition of sleepers and decking, does that put you pretty close to the door's threshhold?
how does the outside edge of the existing roof look? I've seen a lot of older jobs where the corners are rusting w/ destroy's the edge of the roofing, from theres' its' a matter of time before that part fails. evidence is the lifting of the edge of membrane roofing on the drip edge.
would 1/2" sleepers be able to hold the fasteners for the clips? with the addition of sleepers and decking, does that put you pretty close to the door's threshhold?
how does the outside edge of the existing roof look? I've seen a lot of older jobs where the corners are rusting w/ destroy's the edge of the roofing, from theres' its' a matter of time before that part fails. evidence is the lifting of the edge of membrane roofing on the drip edge.
Look at doing decktiles if you're adamant about not peneteating the roof. Super easy install.
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