/diy/ - Do It Yourself

It's raining again and my roof has another leak. Why don't they make self-sealing roofs. They make self-sealing fuel tanks for race cars and aircraft. Tires can seal automatically using pic-related. So why not have a layer of slime under the shingles or whatever is the top layer. I'm not a conspiracy nut but I think they might be holding back a revolutionary idea so we have to replace our roofs periodically.