Green Benefit: In a word—sustainability. Systems and processes that make products last longer are inherently green because they don’t have to be replaced as often.
Walls, floors and roofs are vacuum-laminated to improve adhesion and drastically reduce any instance of delimitation that is so common in pinch rolled systems. Vacuum laminating works by forcing the glue down into the form. This process provides better glue penetration and coverage and ensures better adhesion. In addition, once the part comes out of the machine the glue is already cured or hardened. This means that the wall system will hold its shape much better during the balance of the construction process. Humidity and moisture is controlled in this process speeding up the curing process and improving consistency.
Pinch rolling is a technology from the 70’s. In this process, glue is applied to the parts and a press forces the two pieces together. Glue seeps out of the sides of the part causing waste (bad for the environment) and it is very difficult to remove all the air pockets. It is these air pockets that cause delimitation in ordinary RVs. In ordinary RVs, the adhesives are air-dried which takes longer, and the parts also lose their shape easier because the glue is wet longer.
Vacuum laminating equipment costs up to five times more than pinch rolling equipment. This explains why very few RV manufacturers use it. However, EverGreen RV is about quality and durability and the end results are well worth the investment.
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