![]() ![]() Tim Healey Here are three of the most common residential eaves configurations each of these can vary greatly according to the wishes of the designer or client. On the other hand, materials for the soffit can vary greatly. The material for the fascia can range from preprimed wood to a wide variety of rot-resistant synthetic materials. Regardless of the overhang dimensions, fascia is most often made from 1-by stock. Some builders make their full-scale drawings and mock-ups on a sheet of plywood and work out the cornice returns as well.Įaves with narrow overhangs. Because crown-molding angles can vary, it’s helpful to have a sample of the material you plan to use on hand as you make your drawing. The top of the soffit material and the inside edge of the subfascia help define the cut lines for the rafter tails.Ī full-scale drawing is particularly important when the plans call for a cornice with crown molding (see “ Building a Cornice,” Apr/17). ![]() Then they mark the reveal along with the thickness of the soffit material. (For 1x8 fascia, they would mark 7 1/2 inches down from the top). Going back to the fascia board on the drawing, framers mark the height of the board as determined by the design and by stock widths. Next is the subfascia, which is usually made from 2-by stock that is nailed to the rafter tails. Working back from the overhang, they mark the width of the fascia and any secondary fascia trim that might be called for. From there, they mark out the total overhang as taken from the plans. They begin by drawing the birdsmouth, or the rafter cut out that fits over the wall plate (see “ Cutting Common Rafters,” Mar/17). Once the design is completed and put on the blueprints, most framers I know make a full-scale drawing of the eaves detail on the end of a straight piece of rafter stock or piece of sheathing. For this complex eaves with crown molding, the builder uses a section of the molding along with a piece of 1-by stock to ensure a proper layout. Justin Cline Visualizing the details of eaves is easier with a full-scale drawing. Framers rarely have input into the design of the eaves, but because the rafter tails are an intricate part of that design, it’s important to have these details worked out completely ahead of time. Details such as the frieze board on the wall below the soffit, additional fascia boards, or crown molding are some of the nuances that a skilled designer can incorporate into the design of the eaves to achieve a desired effect. The vertical distance of the fascia beyond the soffit material (the reveal) creates a shadow line, which can be crucial to the overall aesthetics of the eaves. A skinny fascia can accentuate the width of an overhang, while a tall fascia can make eaves look clunky. Tim Healey To lay out and install the parts of eaves, framers must be able to visualize the details and how those details relate to the wall and roof framing.ĭesigners have to properly proportion the size of the fascia (the vertical part of the eaves) to the width of the soffit (the horizontal part of the eaves) (see Eaves Terminology, above). ![]()
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