According to Trailer Life, Keystone states that a 1 1/2" drop or dip in an RV roof the first year is within normal specs and not a warranty item.
Apparently the roof section around the air conditioner in a Montana is sagging down that amount!!!
I guess it makes it easier to clean the foam filter, I'm guessing in a few years it will be at eye level.
Ron W.
03 Dodge 2500 SRW,SB,EC
2018 Keystone 25RES
DRZ-400SM
DL-650