how do you stop it leaking

hi, over the year ive fully carpeted my 90 (front) but this week with all the rain the floor is now soaking , so its all had to come out.
My question is, how can I stop or try to stop water coming in through the floor panels ? would silicone work, what do others use ?
regards

I use stickaflex or the black silicone used for bonding car windscreens in. It will Make a big difference but it is impossible to make if fully watertight.

There's a water ingress manual with great tips


http://www.landyzone.co.uk/lz/f38/defender-water-ingress-manual-82256.html

i used "tiger seal" to stop the leak where the bulkhead meets the screen frame/ some stupid foam gasket . then found that the spongy seal between the rest of the lower body and top was leaking also. so did that as well.
so far so good.. been raining heavily and no more wet carpets or floors.. so far anyway lol