Keystone RV Forums - View Single Post - Ditching the coroplast for something better

acooper1983 · 02-21-2019, 02:24 PM

has anyone ditched the coroplast for something a little stronger/higher quality. It might be my ocd, but coroplast looks like a hammered dog turd every time i look under a trailer. My thought is using 1/8" HDPE. Its is EXTREMELY durable , my thought was to use adhesive and attach 2" closed cell construction foam for better under trailer insulation, then attach with sell tapping screws to the frame, im guessing i will have to add a little bit if cross bracing for the seams to be tied into, on could then simply caulk, or tape the joint lines (perhaps a butyl gasket) To fight moisture under the trailer, my idea was to add a "radon" fan and piping for air movement when needed.

02-21-2019, 02:24 PM	#1
acooper1983 Junior Member Join Date: Feb 2019 Location: Roscoe Posts: 6	Ditching the coroplast for something better has anyone ditched the coroplast for something a little stronger/higher quality. It might be my ocd, but coroplast looks like a hammered dog turd every time i look under a trailer. My thought is using 1/8" HDPE. Its is EXTREMELY durable , my thought was to use adhesive and attach 2" closed cell construction foam for better under trailer insulation, then attach with sell tapping screws to the frame, im guessing i will have to add a little bit if cross bracing for the seams to be tied into, on could then simply caulk, or tape the joint lines (perhaps a butyl gasket) To fight moisture under the trailer, my idea was to add a "radon" fan and piping for air movement when needed.