TechTalk | 57 Depending which product was used and how long ago the initial fit was, the seal can deteriorate and resealing is a very good idea. Toilet and gas cylinder compartments and access doors and hatches most often are fitted in a similar way to windows, so check on the existing seals. Also, some of the hatches might have screws and rusted screws can easily transfer water into the vehicle.
Roof Hatches, Antennas, Vents and Roof Construction
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e recommend checking you roof at least once a year. Check all the seals and surrounds of all the fittings on your roof. Look for stress cracks and pin holes. Some RV roofs have corner pieces or joiners where parts connect together and you need to check them all. These seals can become damaged over time due to sun, storms and slight impacts. If you plan to reseal on your own make sure all the old sealer and gunk is removed and that the surfaces are cleaned thoroughly before resealing.
Underbody and Lower Sill Problems
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Vs built on a cab-chassis can have timber floors, especially older vehicles.
To prevent water damage and timber rot it’s advisable to treat the under-body on a frequent base with protection. It’s also a good idea to have mud flaps fitted as they decrease the amount of water from wet roads being splashed up underneath. You should also check to see if the vehicle has hit anything while travelling – sometimes you don't even realise it has happened – and therefore if the under-body protection is damaged. On the lower sill of the vehicle you can check for rusted screws, loose aluminium angles or steel channels.