A roof can be added over an existing mobile home roof using traditional construction techniques. Materials needed for the project include lumber, insulation, nails, paint, sheathing material and shingles. To begin the process, a plate is nailed along each side of the mobile home, with nails going through the existing metal roof and into the tops of the walls underneath.Know More
Caulk is used at nail points to keep water out of interior walls. Approximately 72 roof joists are cut, with an overhang of approximately 18 inches. Joists should be spaced at 24 inches to allow for standard fiberglass insulation. The slope of the new roof may be adjusted to match the slope of the existing mobile home roof. After insulation is in place, a vapor barrier is installed between channels in the rafters. Sheathing material is covered with roof felt and shingles to protect the new roof and make it look similar to other residential roofs. Overhangs may be covered underneath with particleboard. Vents, gutters and downspouts may be added at the time of construction or later.
Adding a residential-looking roof to a mobile home increases the home's value and decreases needed annual maintenance. It also conserves energy and reduces costs for heating and cooling. Some locations require a building permit to add a roof to a mobile home.Learn more about Carpentry
Mobile home roof trusses are a type of rafter used in the roofs of manufactured homes. Three basic types of trusses are used in mobile homes, depending on the style of the home.Full Answer >
To measure a roof, find both the area of the house and the pitch of the roof. Calculate the number of roofing tiles necessary to complete the job by multiplying the area of the house by the numbers that correspond with the pitch of the roof.Full Answer >
A roof purlin is a horizontal bar or beam that supports the load of the roof deck by transferring the weight of the roof to the major structural elements. It is then supported by either the walls of the building, steel beams or rafters. Roof purlins are commonly used in steel buildings, but are also used to replace rafters in wood-framed structures.Full Answer >
Laying out a common rafter begins with preparing a detailed roofing plan and obtaining the pitch of the roof. Get the roof span, and make a triangle called a birds-mouth. Calculate the rafters for hip roofs falling on four sides, and use the difference to calculate the lengths of the jack rafters before laying out all common rafters.Full Answer >