Rubber? sheet under roof rack storage bag

Mine has marine carpet sewn into the canvas floor.
You could put this down first, light and strong.
MM

We use a piece if that perforated plastic sheeting , works well.





cheers Unc

Use the interlocking rubber mats, cut to size to fit rack - got ones with approx 20mm holes so water can't pool as easily - available at any camping store

Cheers
TG

Agreed that you need something. Mounted directly, mine started to wear on pressure points!

Putting something underneath your canvas may stop it rubbing and wearing through. But you need to ensure that there is good drainage. If water can collect eg on a rubber sheet, that water will quickly seep into the bag. Also any water that pools under the bag adds to weight up top.

We have a canvas bag that rests on a solid base but have had the experience of having most of the contents of the bag wet even after a few mms of rain. The water was forced under the bag as we drove along and quickly soaked through the canvas. Top of the bag was dry.

Cheers,

Val

Indoor/outdoor carpet works well, the one without a backing, about 3-4 mm thick. It's cheap and can be cable tied to the roofrack to secure it. It is also very tough, won't tear and doesn't hold moisture and dries quickly, we used it for years on the troopy.

thanks everyone for the useful and practical ideas - another example of the forum working well - cheers D&G

I place a mesh rubber mat underneath the canvas packa bag.
As well as reducing physical wear, it allows water that may have worked its way underneath, to drain away quicker and provide better ventilation.

Bill

strips of carpet, then you can use them for traction when you get bogged.

Works for me.

T