This is an excellant question!... Like stated, to fasten the handrail posts to roof they have to be screwed down through flange at bottom of posts.. Shimmed for level and screwed down through the rubber membrane. This puts a hole through the roof membrane and therefore has potential for a leak. To help overcome this I placed my posts to layout needed, then marked the holes and predrilled a pilot holes for my lag screws. I used 100 percent silicone roof sealant, and shot silicone into the predrilled hole and a good bead of silicone for post base to sit into. When i ran my lag screws in, they went down into the silicone filled hole and oozed out the silicone to seal threads. I then shot a bead of sealant on the head of lag screw once installed to base plate. This sealed the base plate to the roof... Sealed the hole of the lag screw.. And then sealed the head of lag screw to top of base plate.... And then lastly i used EPDM rubber lap sealant caulking and caulked the post base plate to rubber roof. To hide this all... The posts come with base trim to cover hardware and base plate. Giving it a finished look. Hope this helps clarify how I waterproofed this connection.
Absolutely gorgeous!
Enjoying watching the videos. Nice work.
Thank you. I appreciate it. Been a fun and challenging project
Did you do anything to avoid leaks where your posts lag down?
This is an excellant question!... Like stated, to fasten the handrail posts to roof they have to be screwed down through flange at bottom of posts.. Shimmed for level and screwed down through the rubber membrane. This puts a hole through the roof membrane and therefore has potential for a leak. To help overcome this I placed my posts to layout needed, then marked the holes and predrilled a pilot holes for my lag screws. I used 100 percent silicone roof sealant, and shot silicone into the predrilled hole and a good bead of silicone for post base to sit into. When i ran my lag screws in, they went down into the silicone filled hole and oozed out the silicone to seal threads. I then shot a bead of sealant on the head of lag screw once installed to base plate. This sealed the base plate to the roof... Sealed the hole of the lag screw.. And then sealed the head of lag screw to top of base plate.... And then lastly i used EPDM rubber lap sealant caulking and caulked the post base plate to rubber roof. To hide this all... The posts come with base trim to cover hardware and base plate. Giving it a finished look. Hope this helps clarify how I waterproofed this connection.
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