A hip roof or a hipped roof is a style of roofing that slopes downwards from all sides to the walls and hence has no vertical sides. The hip roof is the most commonly used roof style in North America, after the gabled roof. These roofs are not just aesthetically pleasing but are more aerodynamic than flat roofs. Hence, they are preferred in regions that are prone to hurricanes and hale.

Table of Contents. A regular hip roof sits on a rectangular plan with four faces. The slope or slant of the roof is almost always the same, and hence they are symmetrical at their centerlines.

The longer sides have a trapezoidal shape while the sides at the front and back have a triangular shape and are called hip ends. One of the disadvantages of a hip roof is that it leaves very little area in the attic and is prone to leaks.

A half-hip, jerkinhead or clipped gable roof is usually characterized by a gable, but the upper points of the gable are instead replaced by a small hip. One of the benefits of a half-hip roof is that it may accommodate a gutter that can be easily fixed all around the house. The half-hipped roof comprises of both the elements of a gable and a hipped roof.

The cross-hip roof is one of the more popular variants of the hip roof. Cross hips are laid out perpendicularly over L-shaped buildings, and their construction can be likened to bringing two hip roof buildings together. The seam forms the valley or the cross-hipped roof. Like the half-hip roof, these roofs are also great for installing a gutter and provide protection from high winds. A hipped roof laid on top of a square structure creates a pyramid hip roof or the pavilion roof. All four sides of the roof are equally hipped at all corners, and they meet at a single, centralized peak, forming a distinct pyramid.

Roof Framing 101

A hip and valley roof may be part of an irregular structure. Such buildings may have more than four hips in the roofs, and they form valleys at the inside corners.

Model and Measure Hip Rafters De-mystified by Modeling in SketchUp Part tribrachpenpal.fun

This type of roof is also called broken-back hip-and-valley roof because the main hips are intconeected by the rafter of gables on one side and the rafter of the valley on the other. This beautiful red-painted house seems like it has come out of a fairytale.

The wooden building with the hip roof and a small chimney on top seems to be located in a fairy glade in the middle of an enchanted forest. This seems to be a wonderful retreat for some rest and relaxation. This stunning house speaks of wealth and luxury.

The house is comprised of several hip-and-valley roofs that are made up of a shiny material, probably some sort of metal. The multitude of tiny spotlights outside the house gives the building a golden glow, further enhancing the opulent look. This house has embraced stones in a big way. The walls of the house are made of white stone, but it is the charcoal and smoke gray stones on the hip roofs that catch attention. The light and dark contrasting stones on the roof of the house give the place a very elegant and chic look.

This house is beautiful in its simplicity. The walls are a lovely shining white, and the roof is made of dark silver shingled hips. The house looks quite airy and spacious and has the distinct L-shaped because of the cross-hip roof. This house has almost the same color combination as the house before it, with its shining white walls and silver hipped roofs.

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However, it consists of the hip-and-valley roof structure because of its larger and more irregular structure. The house has a quaint cottage feelthanks to the variety of lush green plants and fuchsia flowers outside it.

The pure white walls of this house contrast beautifully with the earthy brown tones of the hipped roof.

The house has an elegant country house type of look and the high walls make it quite majestic. This could be a great home for some well-to-do farmers or lovers of the countryside.If you are building a new home, putting an addition on an existing home, or replacing your roof down to the rafters, you will need a new roof frame. Roofs are framed out of lumber and pieced together in a series of triangles designed to bear the load.

They can be pieced in many different configurations from simple to elaborate and create a variety of different looks and ceiling heights. A 1,sq. However, it is also possible to build larger roofs using steel framing. Steel has a much higher cost than wood - nearly twice as much for materials.

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Steel framing, however, provides more stability for longer runs as well as for taller roofs. Cathedral ceilings and other tall roofs and interiors require steel bracing as part of the roof even when using wood because they require additional stability.

Steel could, therefore, be used to create stronger roofs with more elaborate angles and pitches, potentially using less material. If you plan to use the attic space, want to use less material, and have higher ceilings, a steel frame may provide the needed versatility. Otherwise, wood frames or wood frames braced with steel can often accomplish the job for a considerably lower price. Rafters are large pieces of lumber that are constructed and fit on-site to form the roof. Because they are built on-site, they also take significantly longer to install, and it is easier to introduce errors into the building design.

They are built in a controlled environment and can be installed in a day, so there are fewer weather-related delays. They are factory-built and assembled with computer-aided technology to the exact specifications of your home and roof size. They will be delivered to the site on a flatbed truck. Keep in mind that very tall buildings, large properties, and complex roofs cost more because they involve more material and labor. There are often additional fees associated with the roof-framing process, including disposal of excess materials.

If you have a very complex roof, you may want to hire a designer to make drawings and plans for the roof. Updated the introduction with new costs. Added a section on steel vs wood. Added a section on trusses vs rafters with a subsection on truss types.

Added a section on roof types with several examples, including gable, mono, flat, A-frame, and gambrel. Added a section on roof framing. Added a section on updated labor costs. Updated enhancements and improvements with information on disposal fees and designer fees. Updated additional costs and considerations with information on bundling prices, permits, garage roof costs, and oversized truss spans. Added an FAQ section with 3 questions and answers.Connecting one hip roof to another is a major remodeling project, usually connected to construction of an addition to a house.

It is not a job to undertake unless you have carpentry and remodeling skills. The walls of the addition will support framing for the new roof and determine the location of the connection to the existing roof.

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An added roof usually ties into a hip roof on a side of the old roof framed with common rafters; a hip roof has a center gable section, with hip slopes on the ends. Expose the rafters on the existing roof by removing shingles, underlayment and wood sheathing. Use a pry bar or similar tool to pull off shingles and a pry bar and reciprocal saw to lift and cut out sheathing.

Identify the outside rafters or trusses on the old roof, the width of the new roof. Use boards the same dimension as the rafters or trusses on the new roof to create "valley" rafters on the existing roof. Make the tops the same pitch as rafters or trusses on the new roof. Use a speed square to find the pitch angle and mark it on the valley rafters.

hip roof addition framing

Cut the angles with a circular saw. Set the pivot point on the square at the end of a rafter and rotate the square until the pitch on the "common top cut" table is at the top of the board. Nail the valley rafters to rafters or truss chords on the existing roof with 16d framing nails and a hammer, with the wide dimension of the board on the rafters. Form an upside down V with the tops of the valleys against the existing ridge board or other point selected for the new roof to connect.

Leave a gap for a ridge board. Erect a pair of rafters on the walls of the addition, flush against the existing roof wall. Plumb these with a level and fasten them to wall caps on either side with framing nails. Set another pair of rafters at the other end of the roof and connect the two sets with a ridge board; use a 2-byinch ridge with 2-by-4 rafters. Slide it between the rafter tops and fasten it with framing nails on each side. Mark inch increments using a tape measure on the ridge between the end rafters and the valley rafters.

Measure between the ridge board and the valley rafters at each increment and cut short "jack" rafters to connect them. Nail jack rafters to the ridge and the valley rafters. Fill the space between the end of the new roof and the valley rafters with short trusses if the new roof has trusses without a ridge board.

Cut the ends of prefabricated trusses to fasten to the valley rafters or make trusses by cutting rafters to the same pitch as the new roof and cross-bracing them with horizontal cross ties. Bob Haring has been a news writer and editor for more than 50 years, mostly with the Associated Press and then as executive editor of the Tulsa, Okla. Haring holds a Bachelor of Journalism from the University of Missouri.

By Bob Haring. Things Needed.

How to Frame a Hip Roof Onto Another Hip Roof

About the Author.Although many modern roofs are framed using pre-fabricated trusses there is still a need for handmade roof addition framing. Hip roofs in particular need to be framed by hand because of the more complicated nature of them.

Learning how to frame a hip roof addition isn't actually that difficult as long as you have the right tools and materials available.

hip roof addition framing

While it is slightly more complicated to frame a hip roof than a gable roof this really shouldn't put you off at all. With enough planning you should have no problem framing a hip roof addition. First you need to measure the length of the ridge board on your house. To work out the required length it's simply a matter of measuring the width of the building and taking this away from the length. For example if your building is 30 feet long and 20 feet wide then the ridge needs to be 10 feet long.

Now you need to cut the length of all the common rafters, this is exactly the same process as if you were cutting rafters for a gable roof.

Work out the length of these based on the building size and pitch of the roof. A seat cut will need to be made in the rafters which will allow the rafter to fit snugly on the top of the wall, this will create a good fit and a nice sturdy rafter.

The common rafters now need to be nailed into the ridge board at each side. Lift the ridge board and nail the common rafters on the other side of this so that the ridge is securely held in place. Once all of the other common rafters are fitted the ridge will be firmly locked in place and unable to move. Work out the length of the hip rafters, this will need to extend from the ridge down to the corner of the building.

This needs to run at a 45 degree angle. You can look this up in tables or instead do some simple mathematics. It's essential that these hip rafters do not move while you are fitting the jack rafters. To ensure that this is the case use a piece of string to make sure that the hip rafters don't move out of the 45 degree angle. Work out the length of the jack rafters by looking through a rafter table on the Internet. These are then cut to size and installed in the same way as a common rafter.

Ensure that the hip rafters don't move out of place while you are doing this.

Hip Roof Design and Construction

All 4 of the hip rafters need to be at perfect degree angles for the roof to be finished properly.Easy Rafters. Hip Roof A hip roof is a rectangular roof that slopes on all four sides. A regular hip has equal slopes on all sides while an irregular hip has different slopes on the main roof and hip end roof.

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Easy Rafters does not calculate a complete four sided hip roof, but rather calculates the common, hip, and jack rafters for one end of a hip roof. To Calculate a Hip Roof Select Hip from the Roof Type dropdown list or click on the corresponding button on the toolbar to calculate a hip roof.

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The preview window displays a dimensioned plan view of the hip roof. Main Slope Enter or select the slope of the main roof common rafter. The slope of the hip end will update automatically to match the main roof slope. Hip End Slope To calculate an irregular hip enter or select the hip end slope after the main slope has been entered.

Building Width Enter the total width of the building. Main Overhang Enter the horizontal overhang of the main roof common rafter including the fascia board. End Overhang This field is disabled for regualr hip roofs since the overhangs will always be equal. For irregular roofs select "Equal" or "Not Equal" from the dropdown list. Irregular hips will have unequal overhangs by default since the common and king common rafters have different slopes.

Making the overhangs equal involves offsetting the hip rafter along the main or hip end wall plate and adjusting the height of the hip end wall to compensate for the overhang difference.

Hip rafters must be dropped or backed so that the edges of the rafter won't interfere with the roof sheathing. Dropping a hip lowers the heel of the hip rafters while backing a hip involves beveling the top edges of the hip rafters. Dropped hips for irregular hip roofs will be shifted slightly off their centerline to compensate for the different amount of drop required for the main and hip end roofs.

Backed hips for irregular hip roofs will have different backing angles for the main side and hip end side of the hip rafter. Note: The hip shift or backing angles will be displayed in the hip rafter top view on the Hip tab and in the deatil drawing on the Corner Detail tab.Roof framing is one of those carpenter skills that appears quite complicated, and indeed, some roof designs are difficult.

Roofs are basically five types: shed, gable, hip, gambrel and mansard. In many cases with purchased house plans, the details of the roof construction, including rafter design, are included.

Pre-constructed trusses have also become increasingly popular. They are constructed at a factory to match your building and delivered on site. They do, however, require extra manpower and lifting equipment to install in place. You can also build your own trusses if you have the equipment, or can rent the equipment to install them. Simple roofs, such as a shed or the common gable, are fairly easy to construct, even without plans, if you understand the basics and a little geometry.

Roofs are framed in five basic designs: shed, gable, hip, gambrel and mansard. The gable is the most common, and it can be complicated with multiple roof lines, including valleys and dormers. For a shed roof you only need to know the rise, span and line length. Span is the measurement across the building from outside supporting wall to outside supporting wall. Run is half the distance of the span.

Rise is the measurement from the centerline of the span to the top of the roof line. Line length is the measurement from the outside of the supporting wall line to the centerline of the roof at the top of the rise. The framing of a basic gable roof is based on a right-angle triangle, and the various roof framing components fit the triangle. The rise, or height of the roof at its peak, is the altitude of the triangle; the run, or half the building span, is the base of the triangle; and the line length, measurement from the roof peak to the building wall, is the hypotenuse.

You will also need to know the desired pitch of the roof. Pitch is the slope or angle from the wall plate to the roof ridge line.

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Pitch can vary a great deal, from a shallow slope up to a very steep pitch. Pitch also has its own denotation, determined by the rise in inches in 12 inches. Having the correct pitch is important. In many instances, a certain pitch may be necessary or even required by local codes. Pitch is determined by snow loads, other weather factors and the covering to be applied to the roof. For those in the northern parts of the country, an 8 in 12 pitch, or more, is commonly used to keep excessive snow loads off the roof.

hip roof addition framing

Those in the southern climates may utilize lower pitches. For lower pitches, a built-up or continuous roll roofing must be applied to keep the roof waterproof. Pitch is the amount of angle or slope the roof has. A framing square is traditionally used for laying out the roof and determining pitch. After you determine the rise, span, run, line length and pitch, the next step is to lay out the rafters, or mark the cuts on a pattern rafter to create the roof.

We will show two methods of laying out rafters; one using a traditional framing 2-foot square, and the second using the new C. Hanson Pivot Square. The first step is to lay the square on the end of the rafter board and locate 8 inches on the tongue the riseand 12 inches on the blade the unit of run. Multiply this by the run of the building.

You should make this first pattern rafter on the straightest board you can find. If there is any curve in the board, lay out the rafter so the crown is up or facing away from you. Experience has shown that the weight of the roof will gradually flatten this crown. If the crown were to be positioned down, the roof could eventually sag.Hipped roof construction can seem quite complicated to grasp at first but i'm going to break it down and explain each area in detail.

I'll start at the beginning with the easy bits before tackling the more complicated stuff and that way hopefully I'll make it really clear and easy to understand exactly how to set out, measure, cut and install hip and valley roof rafters. If you know how, it's possible to cut all or most of the roof members safely on the deck before taking them up and installing them all together.

I'll show more detailed pictures of each section as we go, but above is a basic picture of a hip rafter roof from above. Hip rafters are the diagonal rafters that span from the ridge at the top down to the corners of the roof.

The hips are in red, common rafters yellow and for hips to work on a square roof like above each member is equal. The green arrows above show every side is equal, we'll assume 2 metres for this example. Every common rafter is the same length brown and each hip rafter is the same length too red.

Also, the measurement shown above in green from the corner of the roof to the center of each common rafter is equal for each as well - 1 metre. You'll know from the page about calculating common rafter lengths that we subtract the thickness of the ridge from the span so that the ridge will fit in between them.

That means each pair of common rafters is too short by half the thickness of the ridge. So to use the same method for common rafters on each side of this hipped roof, the center of the above roof would need a square block in between all the rafters for the common rafters to be fixed to.

Otherwise they would be too short. Let's assume the ridge and all roof members are 50mm thick, so 50mm would be removed from the length of the span before calculating the common rafter lengths. Because of this we put a 50mm square block in between the common rafters when building the hipped roof above.

hip roof addition framing

A close up of the top of the above roof and how each rafter and hip would fit together with the ridge shown in purple would look like this notice the red hip rafters are cut to a point. Hipped roofs are rarely square like the example above. The picture below shows the same roof, extended length ways with the addition of a ridge.

It is basically a gable roof with half of the hipped roof above stuck on each end. For that reason, we can use the same common rafters all the way around it. We'll assume the new length of the roof below is 3. To calculate the length of a ridge in a hipped roof you simply subtract the width away from the length.

Importantly though, you must add the thickness of the ridge back on to that measurement, so we can use the same common rafters already measured we've removed the 50mm purple ridge from above, so need to now add 50mm on to the new longer ridge.

The hip rafter plumb cut is a different angle to a common rafter plumb cut. If you are using a Stanley Quick Squaremove the blade to the corresponding notch for the hip rafter. Because we want a point on the hip though, we need to mark back square from that plumb line half the thickness of the ridge, in this case 25mm.


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