Overlay Roof Framing

Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes.

Overlay roof framing.

Add the length of the overhang beyond this mark and. The best case scenario for an overlay is sound decking. However this can only be done once. Position the square at the end of the rafter board with the tongue on your left and facing away from you.

Framing a roof is the last step in framing new construction. However if you overlay you cannot install an ice and water leak barrier as it has to adhere directly to the wood decking. Flat roofs with no overhang or gutter system create more opportunity for water to damage the exterior walls of the home too. When you overlay a new roof you attach the new shingles or other roofing material to the existing roofing material.

At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing. No previous or existing leaks. The other books show how to lay out and measure rafters but they don t explain how to build your roof. It is a waterproofing layer made of regular felt stacked above the solid.

While most home builders will outsource the construction of roofing trusses the rafter supports of the roof itself learning to frame a roof yourself is one of the true arts of carpentry and a basic primer is covered below. My simple little roof had had both gable and hip details that overlay vaulted sections. Produced by apa the engineered wood association formerly the american plywood association in 1989. It helps with water runoff and adds value and lifespan to the home.

A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework. Measure form the top of this line down the board to determine the line length or length of the rafter less the ridge. Published on dec 6 2010 tophat framing systems owner tim lane presents part i of a series for specifiers contractors and owners describing metal roof overlay systems using tophat s patented. And a roof with no sidewalls where flashing is needed to tie in the roofing material to the exterior walls of the home.

Always ensure your work site is compliant with current osha regulations. Avoid roof complaints with proper framing sheathing and roofing techniques. To transition the eaves the horizontal fascia extends to the last rafter tail and a vertical return finishes the transition. In general overlaying a new roof takes less time less labor and thus less money.

Compare measuring and cutting studs to framing a house it s sort of like that. Turning a flat roof into a pitched or peaked roof and adding an overhang is a popular mobile home improvement project. This has advantages and disadvantages and each of those should be weighed carefully.