I have a '98 Forest River class A that I purchased 5 years ago. Each year I wash the roof using a pressure washer, brush and mild soap. After washing I remove any old loose sealant around vents etc and apply new sealant.
This year when I got on the roof I heard a "crackling" noise, much like the sound of old weathered plywood breaking. I always assumed that my roof was metal with a rubber (or something similar) membrane over the top. I am now thinking that it is plywood covered with a membrane and wondering if the membrane has lost its integrity. There are NO visible cuts or holes, but there is some discoloration from mold/mildew that has always been present. I live in Oregon so winters tend to be wet and long. I do not have the option of storing the MH inside. My questions are:
can anyone tell me the make-up of the roof on my rig (metal, wood etc)?
Can the membrane loose its integrity and begin seeping or leaking?
Should I try to seal the entire roof?
There are no signs of leaking on the inside.