Do I need to worry about this butyl?
We bought a Northstar camper in 2016. The manufacturer, Rex, uses butyl tape extensively. It has oozed out of cracks and around jack plates, etc. as expected. Only certain areas have actual caulk/sili...
Forum Discussion
The insert trim on the underside of the camper is a vulnerable spot to introduce water into the camper. The insert trim runs from the top of the cabover and caries water to the underside where it pools in the cap which is inverted. Water can then wick up into the camper through unsealed screws. That rust is proof that is what's happening. Fill the hole with caulk and reinstall the screws and caulk the heads. I would do this the entire length of the insert trim. It is not water tight so water will get in along the top of the cab making any unsealed screw a potential leak.
I just went through this.
I also added a weep on each under side to keep water draining away from the camper.
As far as your other butyl, I personally would cut back everything that isn't helping and get a better look. I seal those joints with caulking and would probably reseal those areas after scraping off all the excess butyl. You might consider calling Northstar and asking what they would use to top that joint.
I just went through this.
I also added a weep on each under side to keep water draining away from the camper.
As far as your other butyl, I personally would cut back everything that isn't helping and get a better look. I seal those joints with caulking and would probably reseal those areas after scraping off all the excess butyl. You might consider calling Northstar and asking what they would use to top that joint.
