JimWhat do you mean by "seal"? Did you cap the vent pipes off completely such that they no longer vent at all? If so, I'd venture a guess that it may cause you some issues. When you were up there, did you remove the vent caps and see if the vent pipes had not fallen down into the tanks, rather, that they still extended at least flush with the roof so the gases could escape?
There should be vent covers on the vent pipes. Part of that cover would include a flange that the cover can screw into. Rain should never get to enter that area.I noticed that gap on mine too.... Should it be sealed? Where does the water go when it rains? I haven't noticed any problems but this thread got me wondering....
There should be vent covers on the vent pipes. Part of that cover would include a flange that the cover can screw into. Rain should never get to enter that area.
Peace
Dave
I removed the one screw holding the cap on. Then I sealed around the vent pipe.Covers and all is there... What did you seal? and why? was it to prevetn potential leaks/odor intrusion?
I removed the one screw holding the cap on. Then I sealed around the vent pipe.
I did this for odor intrusion. It wasn't from just using the AC, but using the bath vent fan as well.
Peace
Dave
I'll do it!.... Can't see that it'll do any harm. Thanks
could the reason be: that gap around the stink pipe is to help ventilate the attic space? If not how would it (the attic space) get ventilated? Inquiring minds needs, well not needs but how about wants to know.
Someone suggested that sealing the pipe where it goes through the roof may not be a great idea
because the pipe should be able to flex when travelling and move up and down as the tank is filled
and emptied.
Dave, you might be right. On the other hand, if there is even a little vertical motion of the tank, anchoring the vent pipe at the other end might produce some undesired stress where the pipe attaches to the tank.My thought is that the tanks bulge out on the bottom as they are filled, not the top. And the tanks don't move when traveling.
Just my thought.
Peace
Dave
Rick,
In coaches that do not have the laminated roof system, there are extra vent caps on the roof that serve to help ventilate the roof. In the case of the laminated roofs, there is nothing to ventilate as they are solid panels with the exception of the voids in them that comprise the AC ductwork.