Randy
Wanted to update a little further on that skylight install process.
Our skylight had been repaired several times in aparent attempts to stop the leak prior to our owning it. The first attempt used silicone and every subsequent effort either went over this and did not stick (even silicone wont stick to itself), or addressed the wrong area thinking the silicone jad done the job in the first area. It had not. The amber plastic had a crack at the bottom of a channel in it and the silicone filler had come loose.
The solution is to clean all material off and start fresh. Bend didnt have a replacement at the time so we had to repair. After much anguish and searching I found the afore mentioned crack. I also found that a $10. heat gun (set on low) and a putty knife took about 1/2 of the work out of the job. I just had to be careful to keep the heat gun moving and do small strips at a time so as not to burn the roof.
I used two layers of a product called "clear seam" which is a very clear flexible adhesive in a caulking gun and then two layera of "acrylar" for final seal and UV protection.
I bet you already know these things and if so thanks for listening. I just HATE silicone. After 5 RV's and spending long, long, longlonglong tedious hours scraping it off so something else would stick and fixing the water damage which results from failed silicone. I am currently doing our marker lights which have 10 years of layers of failed silicone and still leak.
DID I MENTION I HATE SILICONE?
Best to you and yours!
Keith