Whilst away in the torrential downpours of a couple of weeks ago, I noticed a small amount of water leaking into my van from the front right window. We're talking a very small amount, 5mm over the course of the day perhaps. It appears to be coming in right at the top of the window and dripping onto the plastic tape fitted between the interior and exterior elements of the rubber window seal.
I've extensively tested the van with a damp meter, and am getting 10% absolutely everywhere apart from right under this window where I'm up to 14-15%. So not sodden, but marginally elevated compared to the rest of the van.
My question is is two parts really: Firstly is there any benefit to spraying silicone grease/wd40/a.n. other product onto the seal to just try and get it a to seal a bit better? Secondly is this kind of volume of water worth worrying about (or is it possible that I'm only seeing a fraction of the water getting in as it's soaking into the walls or something)?
I've extensively tested the van with a damp meter, and am getting 10% absolutely everywhere apart from right under this window where I'm up to 14-15%. So not sodden, but marginally elevated compared to the rest of the van.
My question is is two parts really: Firstly is there any benefit to spraying silicone grease/wd40/a.n. other product onto the seal to just try and get it a to seal a bit better? Secondly is this kind of volume of water worth worrying about (or is it possible that I'm only seeing a fraction of the water getting in as it's soaking into the walls or something)?