Where this one layer rule is true and appropriate is probably on older mobile manufactured homes or even new ones if the home was not framed using framing members of the same dimension and strength as a conventional stick built or modular home typically 2x6 2x8 or larger rafter or truss roofs of sufficient strength to carry the weight that.
1991 mobile home roof construction.
Homes built prior to 1976 had only one or two inches of insulation wrapped around the walls floor and ceiling 2 x 2 or 2 x 3 studs uninsulated air ducts in the floor and ceiling no ceiling vapor barrier.
Proper maintenance can help a lot but even the most well maintained roofs will eventually begin leaking for traditional stick built homes a vast network of construction professionals and roofing specialists exists to repair damaged roofs or replace them when necessary.
Mobile homes built before 1976 were constructed to much lower standards than those built later.
Besides the chassis and roof down structural integrity manufactured homes are built much like site built homes.
A mobile home roof over creates a unique opportunity to completely change the look of the home.
The roof over process is going to vary widely depending on the size of your mobile home the materials you use and the current state of your roof.
Less labor is needed and there are much smaller refuse fees.
I purchased a 1975 baron mobile home and it looks like the previous owners put a rubber roof over a metal roof and then coated with white elastomeric roof coating.
With that said we cannot provide a step by step guide for each method as it wouldn t fit in a single article.
I was told by a guy who sets mobile homes that there is no need to coat a rubber roof because it wouldn t make any difference.