Hi, just a quick question. My camper is leaking at the front of my front skylight, I have replace seals around it but it still gets in so I suspect it’s getting in somewhere towards the front of the van. It doesn’t leak every time it rains but intermittently. It is driving me cracked as I can’t find where it’s getting in so I was going to water proof the whole roof with a liquid silicone or liquid rubber. Have any of you used these products, is it hard ant most importantly, did it work. Any help or advice greatly appreciated!! Thanks!!