6/12 roof pitch

The 6/12 roof pitch is by far the most common residential roof pitch. It is steep enough to shed water quickly while also being what we refer to as walkable. What is A 6/12 Roof Pitch? When you are talking about roof pitches, the first number is the number of inches the roof rises every 12 inches What Is a 6/12 roof pitch If a roof rises 6″ in a length of 12″, this is 6/12 roof pitch. 6/12 roof pitch angle = 26.57 degrees 6/12 Roof Pitch Information. 6/12 Roof Pitch 26½ Degrees. Question: What is a 6/12 roof pitch? Answer: 6/12 roof pitch equivalents roof rises 6″ in a length of 12″. 6/12 roof pitch angle = 26.57 degrees. 6/12 Roof Pitch 26.57 degrees equivalents. 6/12 roof pitch to angle 26.57 degrees. Also referred to as 6/12 roof slope, 6 on 12, 6 to 12. 10-12. 39.81°. 11-12. 42.51°. 12-12. 45°. This is our pitch calculator which will convert pitch to angle or angle to pitch for half degree roof slope calculations. Enter any pitch or fraction of pitch to find angle. Enter any angle or fraction of angle to find pitch

6/12 Roof Pitch Information And Photo Example

6/12 Roof Pitch 26½° angle = 26.57 degrees Details 7/12 Roof Pitch 30¼° angle = 30.26° degrees Details 8/12 Roof Pitch 33¾° angle = 33.69° degrees Details 9/12 Roof Pitch 37° angle = 36.37° degrees Detail A roof pitch angle is written as 12/12, 6/12, 8/12, and so forth. But how do you determine the angle's degree? Here is how: Identify the rise and run. The rise will be equal to the amount of the incline within the given distance or the run that measures 12 inches. The 12-inch run is considered standard in roof pitch or angle terminologies 6/12 pitch - Elevated roof pitch on pole building. This pole building has a 6/12 pitch for its roof line. We are able to custom manufacture the trusses according to different designs. The 6/12 pitch gives it a different look and beauty is in the eyes of the owner:) Saved by Attica Lumber Company. 16 One of the most commonly used terms in roofing. Roof pitch (or slope) tells you how many inches the roof rises for every 12 inches in depth. An Example of a roof pitch would be a 6/12 pitch which means that the roof rises 6 for every 12″ inward towards the peak (or ridge). Furthermore, what is a 9/12 pitch in degrees

What Is a 6/12 roof pitch - Myrooff

  1. Example from 6/12 to 4/12: 6 - 4 = 2; 2 / 4 = ½ + ¾ = 1-1/4 Once the steeper sloped rafters or trusses are in place, install flatter pitched rafter or truss, lower than the steeper sloped truss or rafter (measure at outside edge of column), by the previously calculated distance
  2. Roof Pitch. Roof pitch is the measurement of a roof's vertical rise divided by its horizontal run. It is often compared to slope, but is not exactly the same. In the United States, a run of 12 inches (1 foot) is used, and pitch is measured as the rise of the roof over 12 inches. For instance, a 7/12 roof pitch means that the roof rises 7 inches.
  3. Very Low Roof Pitches: .25/12 to 3/12 . Roof pitches with lower angles, such as 1/12 up to 3/12 are found in more urban, contemporary style houses and in industrial buildings and shacks. It was fashionable for modern-style homes built in the 1960s to have little pitch, just a barely negligible slope to help drain water. Visually, this roof.
  4. g, trim, sheathing, roofing and labor
  5. 3:12, 6:12 and 12:12 roof pitch options 12 inch overhang 31 sizes from 8×4 to 16×32 8, 10, 12, 14 & 16 ft widths Single and double doors Floor studs 12 inch O.C. Wall studs 16 inch O.C. Roof trusses 16 inch O.C. Double top plates Includes 48 inch loft the length of the shed with an optional gable end door Frame for pre hung doors and window

Roof pitch (or slope) tells you how many inches the roof rises for every 12 inches in depth. An Example of a roof pitch would be a 6/12 pitch which means that the roof rises 6 for every 12″ inward towards the peak (or ridge). Furthermore, what does a 9/12 roof pitch look like Roof pitch (or slope) tells you how many inches the roof rises for every 12 inches in depth. An Example of a roof pitch would be a 6/12 pitch which means that the roof rises 6 for every 12″ inward towards the peak (or ridge). There are two suggested ways to measure a roof pitch. The first is from the top of the roof Having a roof with a 6/12 pitch angle means that it's equivalent to rising by 26.57 degrees. Choose the Right Roofing Material When building plans are being drawn up, this will be the right time to decide on the type of roofing material that must be used on a property Do you have a #612roofpitch on your home or are you looking to see what that looks like? Or are you a contractor trying to determine #612roofpitchdegrees or.. Nov 14, 2017 - Explore Katherine Eisenhut's board Roof Pitch, followed by 431 people on Pinterest. See more ideas about roof, pitched roof, roof architecture

6/12 Roof Pitch - Roofgenius

Roof Pitch Calculator Pitches To Angle Char

http://www.homebuildingandrepairs.com/framing/roof.html Click on this link if you looking for more helpful videos and information about roof framing, buildin.. The roof pitch is essentially a measure of the steepness of your roof. Roofs that are roughly flat have a small pitch, while very steep roofs have larger pitches. It is most common for roof pitch to be expressed as a slope. You might remember the mathematical formula for slope is 6/12: 26.57° 1.1180: 7/12: 30.26° 1.1577.

What does a 6 12 pitch mean? - FindAnyAnswer

Like Chris said, most of the roofs we walk on here have a pretty low pitch. Shingle roofs are one thing but on some tile roofs, even without much of a pitch they can be slippery and very dangerous. 2. Roof Cleaning Jacksonville FL 904-304-0810 and Apple Roof Cleaning (813) 655-8777 reacted to this. Share this post If you ever wondered how to figure your overall building height or roof height, here we have a calculator to make life a little easier for you. As a reminder, please, don't forget to add height of rafter, thickness of roofing material and ridge vent to the number that you'll get using our calculator The roof pitch would be described as a 6:12 pitch. The primary reason roof pitch exists in the first place is to redirect water. It is an essential element to ensure water drains properly off of your roof. The pitch of your roof also helps determine the type of materials that can be used on your roofing system

A cost-cutting 6:12 main roof pitch, an exquisite master suite, a 3-car garage, and a large screened porch are sure to make this 1992 square foot home irresistible. The exceptional master suite, with direct access to the deck, a sitting area, full-featured bath, and spacious walk-in closet, create a true Master's Retreat.. There, you often see an 8/12 [34-degree angle] or even a 6/12 pitch [27-degree angle]. A cabin with a classic gambrel roof from Coventry Log Homes. Gambrel roofs have a larger appeal in New England, observes Mark Feder, vice president of sales for Appalachian Log Homes in Ripley, West Virginia, because that style tends to collect less snow How to build a gable roof for a 6×12 shed. The first step of the project is to build the rafters for the gable roof of the 6×12 shed. Cut the rafters from 2×4 lumber, as shown in the diagram. Use a miter saw for accurate angle cuts. Lay the rafters on a level surface and leave no gaps between the components. Use 1/2″ plywood for the gussets

As an example, 8/12 means that for every foot, the rooftop rises 8 inches. Slopes around 6/12 are the most common, while anything below 4/12 is typically considered a low pitch. A steep pitch has several advantages. Many residential rooftops are designed for steeper pitches because they look elegant and pleasing to the eye A roof's pitch is determined by how much it rises vertically for every foot it runs horizontally. Thus, a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. A 12 in 12 pitch is a steep, 45-degree angle roof. See the image below for more explanation on rise, run and pitch RF6 - Roof flashing, 0/12 - 6/12 Roof Pitch - Central Jersey Fireplace. Eatontown, NJ 07724. (732) 641-0740. centralnjfireplace@gmail.com

Roof pitch angle and slope factor chart for slate, tile

The roof pitch multiplier is a number that allows you to find the total surface area of your roof. Simply multiply this number by the area covered by a sloped roof to obtain the total surface area of the roof itself. This is useful since the area of the roof itself is often difficult to measure by hand! The formula for the roof pitch multiplier. Hip and Valley Rafter Pitch. On a related note, the pitch (properly the slope) of a hip or valley rafter will not be the same as the pitch of the adjacent roof sections. While the slopes of the common rafters are expressed as X-in-12, the slope of the hip and valley rafter on the same roof will be X-in-16.97 Garages with 4/12 and 6/12 Pitch roof . 24' x 24' Garage 4/12 Pitch Roof . 24' x 36' Garage with 6/12 Roof. Shown with glass in garage doors, extra door, glass in entrance doors, and gable vent . 24' x 36' Garage with 4/12 Pitch Roof. Options Include . Custom Vinyl Cedar Shake Siding 2. Roof pitch or slope. The roof's pitch is an important factor in determining roof cost for two reasons. First, a very steep roof, typically recognized as anything that's more than 6:12 pitch, is generally considered not walkable and requires greater staging, safety and labor to complete the roof properly. Second, depending on the type of.

Roof Pitch Calculato

  1. Description. Here we have a Custom 6/12 pitch Vertical Roof Garage with black roof, P.beige siding with bottom 3′ wainscot Black and a nice finish look of white Trim around sharp edges ,with 24'X25′ Fully Enclosed for Storage area, also a front area of 24'x20′ open with side entries for easier entrance from sides with a front Gable end closed, Installed in a concrete foundation
  2. Simply locate a roof rafter board, place the end of the level against the bottom edge and measure from the 12-inch mark vertically to the bottom edge of the rafter. This will give you the rise over run, or pitch. For example, if you measure 4 inches, the pitch of your roof is 4:12
  3. The roof is flat and a crane lifts it up and it is unfolded into place on site. Besides being better looking, a roof with a 4/12 pitch may also be better for shingles than a standard 3/12 pitched roof, if you elect to get a roof with shingles. Above is a chart showing the angle of various roof pitches. ROOF LOA
  4. Standard roof pitches typically ranging between 1:12 and 5:12. Any roof pitch higher than a 5:12 requires custom engineering which might increase the cost of your building. Additionally, when you have a higher Roof Pitch, the roof is seen so you might need to order a colored roof, which add to your building cost as well

Metal Building Roof Pitch. At R & M Steel, we offer a variety of metal building roof pitch options, providing your metal building with the style and look you want. There are advantages to both low and high pitched roofs, standard roof pitch is 1:12. Roofs with a 1:12 roof pitch cost less because they reduce the amount of material needed Roof pitch indicates the rise vertically for every 12 inches of travel horizontally. Our online system allows you to choose up to a 6:12 pitch. There are many considerations with both higher and lower roof pitches. Higher pitched roofs may add to the cost of the building, but can add performance to a building in a heavy snow region Notes to the table above. 1. Low slope roofs are from 0 to 3 / 12 in pitch. Some sources consider low slope to include 3 / 12 pitch roofs. If asphalt shingles are to be installed on a low slope roof, special steps are required to avoid short roof life and roof leaks

A 4/12 roof pitch can also be expressed as 4 over 12 and when you're talking to a roofer, this is the most common way you'll hear it explained because it's easy to say in conversation. Another way to express a 4/12 pitch is 4 and 12. In this pitch, the four is your roof's rise and the twelve is the roof's run. The roof's incline increases four feet for every 12 feet of horizontal measurement Roof pitches of 3:12, 4:12, 5:12, or 6:12 work best for metal buildings in snow country. Anything over a 6:12 pitch tends to make massive amounts of snow slide off the roof without warning. Anything less than 1:12 pitch is a huge mistake in snow-prone climates

garage roof pitch photos

A 6/12 pitch roof has a pitch angle of 26.57°, to convert pitch ratio or fraction of slope in degrees, follow the steps:- 1) divide the first part of the ratio by 12 to figure out the pitch such as 6/12 = 0.5, find the inverse tangent of pitch to find the angle in degrees such as tan-1(0.5) = 26.57°, thus a fraction 6/12, or 6 in 12. Understand roof pitch. Technically, roof pitch is the ratio of total vertical roof height (the rise) to total horizontal distance from wall to wall (the span). Although most homeowners do not need to measure pitch, it still pays to understand this term. When you're arranging for repairs or roofing material, your calculations will be way off if. Also measure the length of half of the roof from one side of the ridge beam to the edge of the building. If the roof rises 7 inches (18 cm) for every 1 foot (0.30 m), its pitch would be written as 7/12. If you're using a roofing calculator, press the Pitch button to input the pitch ratio in the calculator's memory

Choosing a roof pitch: 8/12 or 6/12? - Houz

6:12 (Residential looking) roof pitch - clear-span ceiling! Perfect for 2 cars plus workbenches and/or extra storage. Use for any other need such as a home or cabin kit! Steel truss legs - no wood in the ground! Options for doors and windows to be added on-site to suit your specific needs Roof Pitch. The slope, or pitch, of a roof is typically expressed as the amount of vertical rise (in inches) for every foot of horizontal length along the gable. A roof with a rise of six inches per foot would be called a 6/12 roof. Conventional slope roofs, with a pitch between 4/12 and 9/12, are the most common in residential work

How To Measure A Hip Roof From Blueprints - Roofing

Roof Pitch Calculator - Inch Calculato

  1. I would like to design my roof slopes/pitches in fractions of 12, i.e. 1/4:12; 2:12; 6:12. Is there any way to do this? My industry, Pre-engineered metal buildings in the United States is completely set up to use roof slopes/pitches that are set up this way and I would like to stay similar to that system. I was hoping for a ruby script/extension that does this automatically. jvhanna
  2. g square is traditionally used for laying out the roof and deter
  3. Pole Barn AtticTruss Buildings, Pitch Attic Truss, Attic Truss, Gambrel Roof Style Attic Truss, 10/12 Pitch Attic Truss, 8/12 Attic Truss, 6/12 Pitch Atti

Roof Pitch To Angle Conversion Table Slope Factor Char

Standard Features. Built to Florida building code. 6/12 Roof Pitch. Covered front porch. Insulation Values. R19, R22, R38. 15 Seer Carrier HVAC. Escobee Thermostate. Low e Windows Description. The pitch of a roof is its vertical 'rise' over its horizontal 'span'. However, most often a ratio of pitch (also fraction) is slang used for the (more useful) 'slope' (of rise over 'run') of just one side (half the span) of a dual pitched roof. This is the 'slope' of geometry, stairways and other construction disciplines, or the trigonometric arc tangent function of its decimal.

This is our Ultimate Roof & Rafter Guide for people designing and building an off grid cabin or tiny home. Discover the pros and cons to multiple roof designs. Learn the #1 rafter design that will guarantee your roof that is safe and strong for years to come 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. This style of roofing became popular in the United States during the 18 th century in the early Georgian period The pitch fraction represents a certain amount of vertical rise over the entire span. For example, given a roof with a rise of 4 feet and a span of 24 feet, the pitch is 1 to 6 pitch, which can be expressed as the fraction of 1/6. A 12 to 24 pitch is expressed as 1/2. The term pitch and slope are often used.

A-Series is adjustable for steeper pitches. A-Series all-aluminum vari-pitch louver adjustable from 6/12 to 12/12 roof pitches. A Series and 900 Series have a unique blade design that provides maximum weather protection. 900 Series all-aluminum, vari-pitch louver. Adjustable from 2-1/2 12 to 9/12 roof pitches In the simplest possible terms, shed roof pitch is defined as the amount of rise per foot of run. It is expressed as X/Y, where X = rise and Y = run, for example, 4/12 or 5/12, and so on. Worth noting is that the higher the first number in the equation is, the steeper the pitch of your shed roof will be Attic trusses for a 24-ft.-wide garage with a steep roof pitch would provide a room about 16 ft. wide. There will be plenty of space for an office or workout area. The simplest way to the attic. Attic ladder. This heavy-duty aluminum pull-down ladder sells for about $450. It's a little spendy but worth it for the extra strength and longevity 6/12 Pitch Cedar Triangle Gable Vents. Also in PVC, Cypress and Pine. Made of #1 clear lumber. Fastened with galvanized staples, and exterior wood glue. Aluminum screen is applied to the back of the louver box. The stated size is the RO (rough opening). The standard louver box measures 1/2 under the stated size and is 3 deep

Roof pitch visual examples - Roofgenius

Roofing, Gutters and All Waterproofing Anywhere - 6/12 pitch, what degree is it? - Is my logic wrong here? A 12/12 pitch would have to be a 45 degree angle right? If thats true logic tells me a 6/12 For example, a roof that rises 6 inches for every 12 inches of horizontal run has a 6/12 pitch. There is no standard, universal pitch of roof. It varies depending on culture, climate, style, and available materials. The most common roof pitch is designed with a pitch ranging from 4/12 to 9/12 Re: 6/12 pitch not 22.5 deg. That last sentence was your best point, Troy. Pitch and degree are certainly related, but if you want to know exactly how you've got to learn trigonometry. The thread on the rough framing forum is titled, Roof Pitch

5) pitch of roof :-it is the inclined angle formed between Rafters of roof and run of roof. Which of roof is calculated by number of inches it Rises vertically for every 12 inches in extend horizontally. for example a roof that Rises 6 inches vertically for every 12 inches of horizontal run. So pitch of roof is equal to = rise/run = 6/12 The pitch of the roof really doesn't come into play. I won't really work a roof over 6:12 without jacks, because it's just too darn hard on the ankles, and especially on the toes coming back down. Your roof at 12:12 is too steep to walk, IMO, even for an experienced roofer. Jack it Standard Heel Heights (top chord overhang) and Angles Heights are listed in feet-inches-sixteenths and include butt cut Pitch Angle 2x4 2x6 2x8 2x1 Low pitch roofs, such as 4/12 or less, may not allow for half the slope of the top chord. Conversely, steeper roofs may allow for more than half the top chord pitch, as in the truss shown above, where the top chord pitch is 10/12 and the bottom chord pitch is 6/12 It is interesting to note, however, that a 7 in 12 west roof only outperforms a 3 in 12 north roof by 3.9%. It is not completely unreasonable to put solar panels on a north facing roof if the pitch is very shallow. However, a north facing panel will only perform at 73% the output of a south facing panel at a 5 in 12 pitch (most common)

How to convert roof pitch to degrees? - Myrooff

Cape Cod roof's offer the steep 12/12 roof providing space for additional living space. Roof Pitch Recommendations. If the standard specs for your roof provide the shallow pitch of a 5/12, consider upgrading to a 7/12 roof pitch. The steeper roof pitch will enhance the exterior appearance of your home The pavilion kit has 6:12 roof pitch ; Made from sustainable source and high-grade Western Red Cedar wood ; with 6 x 6 Pavilion posts ; Actual pavilion post dimension: 6 in. x 6 in. x 8 ft. 0 in. Durable and low maintenance; inexpensive and easy to build ; Helps define your outdoor space and creates a visual interest in your backyar Galvanized FHA Pipe Flashing for a 3/12 - 6/12 Roof Pitch. Item# G. Rated 5.00 out of 5 based on 1 customer rating. ( 1 customer review) $ 19.32 - $ 178.95. Size. Choose an option 1 Inch 2 Inch 3 Inch 4 Inch 5 Inch 6 Inch 7 Inch 8 Inch 9 Inch 10 Inch 12 Inch 14 Inch 16 Inch 18 Inch 20 Inch. Clear. Please select all options before adding to. 20. $35.80. Ekena Millwork GVTR48X20D 48-Inch W x 20-Inch H x 2 1/4-Inch P Pitch 10/12 Triangle Gable Vent, Decorative. 3.8 out of 5 stars. 22. $91.95. Suntown 16 Octagon Functional Gable Vent with Screen - 2 Piece Construction - White. 4.6 out of 5 stars Roof Pitch Calculator (Roof Slope Calculator) The roof pitch calculator is a convenient online tool you can use to quickly assess the pitch of your roof to determine the length of rafters you need. After finding out your roof pitch angles, you can use the calculator to perform the calculations for you instead of doing them manually. Share Results

6/12 pitch - Elevated roof pitch on pole building

  1. Calculate the tangent of the roof angle by dividing the roof height by the roof width. For example, if the height is 7.5 feet and the width is 15 feet, the tangent of the roof angle is 0.5 because 7.5 divided by 15 equals 0.5
  2. Endless Possibilities. No matter the application, our variety of truss styles and sizes make it possible for your project to come to fruition. Spacer. ROOF TRUSS. Roof Trusses. Over 51 Sizes & Styles In Stock. Custom Trusses up to 100' Span. Any Application. Shop Roof Trusses
  3. This isn't a problem on a roof with a shallow 4/12 pitch, since the seat cut could be as long as 8 7/8 inches. But for a 2x12 rafter on a roof with a steeper 12/12 pitch, the seat cut can be no longer than 4 inches before the D/4 limitation is exceeded

What is a 6 12 roof pitch in degrees? - AskingLot

  1. Once the area of the roof's footprint is known, the overall roof area can be found by accounting for the roof's pitch. The pitch of the roof is the rise over a 12-inch run. Use our roof pitch calculator to find the pitch of your roof. Next, multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall.
  2. 6 12 roof pitch home with dormers in country. Low Priced Modular & Mobile Homes For Sale In San Antonio, West, & South Texas text 210-215-2572 or google+, facebook, youtube, www.SmartCashHomes.co
  3. rafter length = √ (rise² + run²). The formula used to calculate rafter length from roof pitch is, in fact, the same as the one above. The one difference is that we need to calculate the roof rise using the pitch first. So what you need to do first is to get the pitch, using the following formula: rise = run * pitch

Pole Barn Pitch Break: a How-t

Typically, a cathedral ceiling matches the shape of the roof pitch while a vaulted ceiling sits below the roof and can be different, Kadlec says. While a cathedral ceiling has equal sloping sides that are parallel to the actual pitch of the roof, a vaulted ceiling does not follow the roof's pitch, with more styles to choose from This is a 6/12 to 12/12 pitch (25-45°) roof flashing assembly to be used with Rinnai LSi series tankless water heaters. Plastic 6/12 To 12/12 pitch Zero clearance to combustibles Easy assembly Rinnai LSi and RCi Series tankless water heaters works with Luxury/Value Non-Condensing Series works with Ultra Condensing Serie A 12/12 roof pitch can also be expressed as 12 over 12 and when you're talking to a roofer, this is the most common way you'll hear it explained because it's easy to say in conversation. Another way to express a 12/12 pitch is 12 and 12. In this pitch, the first twelve is your roof's rise and the second twelve is the roof's run. The roof's incline increases 12 feet for every 12 feet of. Find Roof Pitch. Place the pivot point against the shingles. Then place a torpedo level on the fat base of the speed square. Adjust the square until the level is level. Read the pitch on the side of the speed square. Note: The pitch tells you the amount of vertical rise (in inches) for every 12 inches of run. Step 2

30 Inch Chimney Saddle Flashing Kits for Roof Pitch 3/12-6

Roofing Calculato

Wind rated, octagon, and copper cupolas come standard with a pre-assembled base mount. It is constructed of wood with metal flashings over the top to complete the cupola look. It is availble in two options: standard - up to 6:12 roof pitch, or extended - higher than 6:12 roof pitch. *It is recommended to wear safety equipment when working at. The best simple house floor plans. Find square, rectangle, 1-2 story, single pitch roof, country & more building designs! Call 1-800-913-2350 for expert help So, a 6/12 roof rises toward the sky 6 for every horizontal (not sloped) foot it travels toward the center of the house. How Does Roof Pitch Affect Roofing Prices? For starters, the steeper the slope on a roof, the more shingles it will take to cover it. Asphalt shingle costs might be double on a 12/12 compared with a 4/12 roof To cut a rafter you need to know the pitch of the roof. This is the rise and the run relationship. By convention, we call it out as the number of inches a roof slope climbs as you proceed 12 inches horizontally across the roof. An example would be a 4/12 pitch roof. The roof rises 4 inches in height for every 12 inches it runs horizontally

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Worked great on 6/12 pitch roof. Base is much larger 20 x 20 ( a good thing) than comparable one at HD. 10″ circular hole is ideal. I liked the sealant applied at juncture of base and cone. Overall a well made in USA product The roof pitch is 8:12 (it rises 8 inches in a one-foot run). If you know what 44' 6 ¾ is in decimal, you can add this in the building width ft field 44' 6 ¾ in decimal format = 44.5625 otherwise, enter the 44 feet in the ft field 6 inches in the in field ¾ inch: the 3 here is the n value, the numerator, and the 4 is the d value, the. So, if your roof rises 4 inches for every 12 inches of horizontal length, then the pitch of your roof is expressed as 4:12. A ratio is the most common way of expressing roof pitch or roof slope, but degrees are also possible. A 4:12 pitch is around 18.5 degrees, but not exactly Valley sets are used to form the ridge line and framing between the main and secondary roof structure and can be common, dual pitch, or mono-shaped in their design. Valley members may also be used for decorative gables, dormers, porches, and more. Valley sets consist of a series of simple trusses, usually in increments of four feet If it measures 6 you have a 6/12 roof, if it measures 8 inches you have an 8/12 roof. Option 3 : If you have a gable end on your house, place the level against the rafter on the roof's overhang. Again, use the 12 inch mark on your level and measure up to the bottom of edge of that rafter