I have a vinyl patio door whose construction included assembly with wooden pegs. The pegs have rotted out, but otherwise the door is good. The door includes an expensive pet door, so I think it's worth fixing. I've disassembled the door, drilled out and replaced the pegs, and reassembled it. I tried silicone as an adhesive, and clamped it for 2 days. It lasted about 2 days after rehanging, and then started to separate and sag. Any ideas about an adhesive that will work on vinyl parts and hold up to 100+ degree South Carolina US heat?