Under the two side slide outs there are GAPS
Around the bottom of each slide is a gap of 3/4+" for roller supports. Gaps equal 2-1/2 to 3 square-foot "HOLE" in trailer.
Solution: 1/2" pipe foam insulation,
Add 3' bright color ribbon to each section of "gap seal." Gap Seals must be removed every time slides are moved in.
Crawling underneath each slide press foam insulation (gap seals) in to gap(s) even with main trailers floor.
Sealing these large holes in our trailers will make it tuffer for bugs getting in.
ALSO; helps with A/C or Heating. Greatly with A/C . . .