Hip and valley roof construction

Any roof which has 4 sides, all of which slope upwards to meet at a seam at the top of the roof, is a hip roof. Hipandvalley roof definition of hipandvalley roof by. Hip and valley roof definition is a roof so shaped as to have both hips and valleys. See more ideas about hip roof, roof design and roof trusses. Pitched roof valley construction details images roof and living room hip roof, flat roof. To get the most out of it is helpful to also read parts 1 and 2. Jack rafters are ones that have one end or both that does not meet a wall plate or ridge beam. It may also join the roof surface at the same height or at a lower level on a side or end, without connection to a hip, creating two valleys for a t shaped roof.

Another common design in the northeast is the saltbox, which is a gable roof with one longer side. How to layout and cut hip and valley roof rafters youtube. Consequently, they are the same length as the hip rafters. Gabled roofs were generally coupleclose construction, i. This occurs when the arms of the t or l ar not the same width. Always make the hip from a board one size larger in width than the common rafters. Basic hip roof design used in residential construction generally includes four roof planes, or surfaces. The hip and valley factor is a number that is multiplied by the actual run horizontal distance of a common rafter to determine the length of a hip or valley rafter. With hipped roof designs there are also hip and valley rafters that form the external and internal corners of the roof, plus a number of jack rafters. Jul 11, 2014 part 3 of the four part guide to roof construction covers pitched roof detail. The text provides subject matter related to more detailed hip and valley roofs.

The cripple jack rafter is also part of a common rafter, but it touches neither the ridge of the roof nor the rafter plate. For a 512 roof we look across at the 5 and find 17. With the right hip roof framing prior to starting construction it becomes easier for all workers to maintain perfect alignment at various corners to ensure proper connections of rafters and ridges. Roof valley construction drawings building construction. Hipped roof construction can seem quite complicated to grasp at first but im going to break it down and explain each area in detail ill start at the beginning with the easy bits before tackling the more complicated stuff and that way hopefully ill make it really clear and easy to understand exactly how to set out, measure, cut and install hip and valley roof rafters. This video shows the erection procedure for a broken hip and valley roof. This one has a lot of personality, with its small windows with shutters, differently shaped dormers and a large, covered side porch. Pitched roof detail ridge tiles, hip tiles, roof valleys. The hip that goes from the ridge of the main roof to the ridges of the minor roof is called the broken hip. A hip roof, hip roof or hipped roof, is a type of roof where all sides slope downwards to the walls, usually with a fairly gentle slope although a tented roof by definition is a hipped roof with steeply pitched slopes rising to a peak. Hrc is a field slopeable connector that attaches hip roof beams to the end of a ridge beam. Building hip and valley roofs with trusses fine homebuilding. The corner rafters used in this type of roof construction are known as the hip rafters. All aspects of the construction are suited to deal with adverse weather conditions, including rain, snow and wind.

That roof is still in good shape after two hurricanes, and whenever we drive by the house, we chuckle at how much time and effort it took to put that roof together. Depending on the size of the roof, most hip roofs will have 46 short jack rafters that are spaced out every 20 inches 51 cm between the hip rafters and the king common rafters. This chart is for intersections of equal pitch only. Broken hip and valley roof are formed on an lshaped building. Mar 27, 2008 roof framing is one of those carpenter skills that appears quite complicated, and indeed, some roof designs are difficult. Cripple jack, which is placed between a hip rafter and a valley rafter. If we consider the rectangular shape of most buildings, then hip roofs will be constructed with two triangular sides and two trapezoidal sides. Hip roof framing and building all about roof, roofing. Hip roofs or so called hipped roofs are a special type of roof that has a very gentle slope at the sides with a. The hip and valley roof is similar to the gable and valley except the roof ends slope inward.

These hip rafters run at a 45 angle from each corner of the building to the ridge. Like the half hip roof, these roofs are also great for installing a gutter and provide protection from high winds. The shape and pitch of the surfaces are basically the same, however the base shape changes from a simple rectangle to a t or l shape, on plan. This form of a roof is frequently termed brokenback hip and valley, because the main hips are intersected by the common rafters of the gables from one side and the valley rafters from the other. Valley rafters valley rafters run at a 45 angle to the outside walls of the building.

Valley jack, which extends from the ridge of the valley rafter. The main advantage of a hip roof comes down to the shape of the structure. Hip jack, which extends from the plate to the hip rafter. Parts of a roof the main structural parts of a roof are ceiling joists, ridge board, jack rafter, hip rafter, common rafters, creeper rafters, raking plates, out riggers and noggings or last rafter overhang. Hip roof design and construction all about roof, roofing. Rafter tables on the framing square on the framing square is the length of hip or valley rafter. The valley is formed where the two different sections of the roof meet, generally. Please practice handwashing and social distancing, and check out our resources for adapting to these times. The major purpose of a hip roof design style is to ensure proper protection to the house from all weather conditions with a minimum requirement of. These have to be adjoined to the standard rafters affixed previously. Jan 27, 2018 image result for hip and valley roof design stay safe and healthy. Like the halfhip roof, these roofs are also great for installing a gutter and provide protection from high winds.

These resources have been created to assist pupils of construction studies to understand. Hip roofs are constructed with four rafters that usually meet on a ridge board that is situated at the middle portion of the roof. How to measure, set out and build hip rafter lengths and roofs. For stability and overall aesthetics of the entire building, half hip roofs require numerous complex systems of trusses or rafters for successful half hip roof construction. A disadvantage of the hip roof is that it is more difficult to construct than a gable roof. Image result for hip and valley roof design with images. Weve included a twostory home with loft, which rarely has a hip roof.

Hip and valley factor table this table provides the hip and valley factor for common roof pitches, as well as the underlying equation for the factor. Afterward, you will have to install the jack rafters in between the standard rafters and the hip rafters. A normal hip rafter, then, would be made out of a 2x8. Due to the technicalities involved in their construction, hip roofs, including half hip roofs, are usually more difficult to construct as compared to the normal gable roofs. Hip roof framing hip to common to ridge join diagram ply sheathing angle and cut setback both sheet orientations sheathing hip cut calculator hip roof ply cut angle diagram 18. It is perhaps one of the simplest styles of roofing, and.

If you like this video please subscribe to my channel for. You can use a framing table or website to calculate your rafter lengths. Cross hips are laid out perpendicularly over lshaped buildings, and their construction can be likened to bringing two hip roof buildings together. Hipped roof construction can seem quite complicated to grasp at first but. Thus a hipped roof house has no gables or other vertical sides to the roof. In this video i show you how to layout and cut hip and valley rafters. Valley rafters construction training and maintenance manuals. Hip roofs hipped roofs installation costs modernize. A valley rafter follows the line of intersection between a mainroof surface and a gableroof addition or a. These roof planes consist of two planes covering the ends of the home, starting at the ridge and ending at the eaves, and two planes covering the sides from the ridge to the eaves. The video looks at the process of slating, applying led to a valley and the process of finishing a ridge.

It is sometimes also referred to as a dutch gable roof, precisely because it contains both roof style features. Broken hip and valley roof are formed on an lshaped building when the two sides are different widths. A jack rafter is a shortened common rafter that may be framed to a hip rafter, a valley rafter, or both. May 09, 2020 a dutch hip roof is a combination of both the hip roof and gable roof features. Apr 06, 2017 the video looks at the process of slating, applying led to a valley and the process of finishing a ridge. Firstly, the selfbracing nature of a hip roof means there is little need for extra support. Hip roofs can be constructed on a wide variety of plan shapes. Hrc hipridge facemount connector simpson strongtie. In the third column of the rafter table see my article. This chart is for initial rough sizing hip and valley rafters, work should be checked by an engineer before plans are finalized.

Install the common ridge and the end two common rafters on either side. Hip and valley roofing property and building inspections. Tiedown fixings tiedown fixings are used to resist uplift and shear forces lateral loads in floor framing, wall framing and roof framing. Where the building has an internal corner, a valley makes the join.

Each ridge is central over the rectangle of the building below it. The 5 best roofing materials for hot climates journal. This is based on an article in the journal of light construction notes. Thus, there are hip jack rafters and valley jack rafters. Measure the distance between the angled hip rafter and the top of the wall at 20 in 51 cm increments and cut jack rafters to fit. Our methods for assembling hip and valley truss systems have evolved a great deal since that first puzzled attempt. The gable portion of a dutch hip roof is usually placed at the end of the roof ridge and sits on top of the plane of the hip roof. The rafters of a hipped roof, which span between the ridge board, hip rafter or valley rafter and the wall framing top plate, may be common, hip, valley and jack rafters. The triangular faces of the roof are called the hip ends. Intersecting the intersecting roof consists of a gable and valley, or hip and valley. Half hip roof construction all about roof, roofing.