I saw a commercial for a product called Flex Seal and I was wondering if anyone had experience with it and could advise if it would work for a ventilation pipe boot on a roof. I need to replace a few boots on a very tall and steep roof. Would something like this be as good as putting a new boot on as far as how long it would stay sealed up and last? The site says it lasts for several years and doesn't dry or crack.
This is what they say about the material, I don't know how well mastic rubberized coatings work.
I don't want to go through the trouble of getting on the roof and spraying it if it won't hold up over time. Would I be better off just replacing the boot or will something like this work?Q: What is Flex Seal™ made of?
A: Flex Seal™ is a thick, durable, mastic rubberize coating that is specially formulated to spray out as a liquid, seep into cracks and holes and dry to a watertight, flexible, rubberized coating.