Adding the gas strut lift assists will help, but it might not totally solve the extra kayak weight issue.
We can install 40 lb., 60 lb., 80 lb. versions of the gas strut lift assists.
The higher the pressure, the more it will help lift the camper roof for you.
BUT, the higher the pressure, the harder it will be to lower the camper roof when you don't have anything on the roof.
I suppose you could install the higher pressure version when you are taking the kayak, and then disconnect them on trips when you are not taking the kayak.
Hope this helps.
============================================================================================
Stan, how much does that help if you have "stuff" on the roof? Being a strong virile young man (well my brain still thinks I am) will that allow me to raise the roof with a kayak on top?
.