Required Insulation Psi Strength For Mobile Home Roof

Drilling and tube blowing from the top.

Required insulation psi strength for mobile home roof.

Each manufactured home must be designed according to the federal manufactured home construction and safety standards at 24 cfr 3280 commonly called the hud code. Getting thorough insulation coverage is the most critical part of mobile home roof insulation and it requires inserting a hose or pipe into the roof cavity. For bowstring trusses you likely have only 1 2 inches of insulation around the edge but 10 in the center of the home. Drilling and tube blowing from the inside.

Add mobile home roof insulation adding roof insulation can save up to 16 of costs related to heating and cooling your mobile home. An alternative to commercial roof cap products for mobile homes and doublewides is the construction of a wood framed gable roof over the existing home. Roofs are under a lot of pressure. The hud code stipulates at 3280 305 c 3 that the home shall be designed and constructed to conform to one of three roof load zones.

Load limits on the roof of a building. In order to stay intact and in place a roof must be able to resist loads both permanent and temporary that are pushing. Continuous insulation zones ashrae 90 1 ashrae 189 1 igcc ibc iecc 2004 2007 2010 2013 2016 2009 2011 2014 2012 2015 2009 2012 2015 0 25 1 15 20 2 15 20 25 3 15 20 25 4 15 20 302535 5 15 20 302535 6 15 20 3035 7 15 20 3540 25 8 20 3540 25 minimum r value non residential above roof deck. It s often recommended that you try to purchase insulation with an r value of no less than 30 50 for the roof and 15 30 for the floor but even these values are largely based on the climate of the location that your mobile home is in the type of hvac system your mobile home has and what part of the mobile home you re planning to insulate.

Mobile home roof over a gable roof add on. Adding new insulation and a roof over to your home can increase the energy efficiency of your roof as well as help to deaden sound while making your mobile home s climate control easier to maintain year round. The map above shows the u value requirements for the three thermal zones that hud has mapped for their standards. The insulation performance standard is a u value also referred to as a uo value which is the overall coefficient of heat transfer through the envelope of the home.

The roof space can be accessed from either inside the mobile home called interior blows or by lifting the lid or drilling holes and blowing insulation into the space. Its purpose is to ensure that every cubic foot of roof cavity gets filled with insulation.