[Pilot2519j]

But these canvass tops are a different story. If you leave your car outside when you're at work I would definitely cover it with one of the $40 top covers I use.
It only takes one minute to put on and protects the interior from fading. I also find it cuts down on interior cleaning significantly. Not to mention cleaner glass.

Dust is the big enemy, its the big culprit in causing tears where the top meets the bows. A weekly stiff stream of water will do you allot of good. No Soap though..
I'm on my second top cover after only one winter. You should see it, the threads were coming apart and the sheen from the cover is completely gone.
But actually, I think the summer is harder on the top than winter due to fewer rain fall and the accumulation of dust.

Perfectlap
Thanks for your lenghty answer and I will follow your advice and get the top that covers the canvass top(like the one the porsche is using in another pic in this thread). It is quite dusty here since I work in an area which there is a cement, concrete plant, asphalt plant around the corner. The other day I bought a Zwiffer to dust of the interior even though now I leave the car closed and with the top up. I bet you in two days the car would be covered indirt & soot. Im sure that that is no good since I know the effect of sand on any kind of structure.
Many thanks!!!!!