Do not put a topper on that slide. Consider the following to keep the slide top dry.
1. Extend the slide.
2. Open the main awning far enough so the joint in the middle of the forward arm is the same distance from the coach side as the slide wall.
3. Turn off the auto retract feature.
When breaking camp, always close the slide first, then retract the awning. Any water or debris on the awning will fall to the ground.
I have done this for 5 years, with total success. The awning is not out far enough to be bothered by wind. The top of the slide stays debris and water free.
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
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