Funny. funny, …
I did a thread on this not too long ago. I had to R&R the gasket on my 270S! Apparently, FR does not apply anywhere near enough of the appropriate sealant material. The independent mobile RV windshield technician removed the existing ws, applied sealant into front end cap fiberglass groove, new rubber gasket inside and outside, then on top of gasket on the endcap topside after completion of R&R. The original ws was reused - did not break. This guy was one of the few (5 out of 350 encounters) professionals I have dealt with in the RV "industry". This required 4 large tubes of the proper material. Based on what I saw him use, FR used less than 1/2 tube of material - 8 :1 ratio!!! No wonder my ws leaked every time it rained! After curing for a day, I took a quick trip on the Interstate to check and 85% of the wind noise I used to hear (I thought were the side windows) disappeared. The remaining 15 % is probably the side windows.
Here are the previous pics of before and after. Another example of unprofessionalism by the "industry"!