Ch1pbutty
Super Poster
VIP Member
We have the internal ISOTOP so just pop the roof on the next dry day when we get home to stop any mildew on the VW roof canvas. ISOTOP Material is same as Goretex so it only allows moisture 1 way, but wouldn't really say it offers much insulation, we rely on good quality bedding for this.
To me the external covers are only worth it in very cold climates to keep you warmer + keep snow off the roof mech. I don't see them as being much use in the rain UNLESS you are able to install them when the roof canvas is dry. If fitted over wet canvas you are trapping the moisture in the van as the external cover is 100% waterproof so the water on the canvas will not be able to escape. Plus you will have to stand outside in the p8ssing rain getting your clothes wet which will then need to be dried in the van causing more condensation.
anyway I'm sure the debate will continue....
To me the external covers are only worth it in very cold climates to keep you warmer + keep snow off the roof mech. I don't see them as being much use in the rain UNLESS you are able to install them when the roof canvas is dry. If fitted over wet canvas you are trapping the moisture in the van as the external cover is 100% waterproof so the water on the canvas will not be able to escape. Plus you will have to stand outside in the p8ssing rain getting your clothes wet which will then need to be dried in the van causing more condensation.
anyway I'm sure the debate will continue....