pasifika festival townsville; Turned out great.We also had to cut the 9 into the 6 at a 135 degree inside corner. I hope you find The Digital Jobsite and SketchUp helpful in visualizing non-standard roof framing configurations. There is more to these roofs than "meets the eye". We both posted the same information at precisely 8:06 A.M. ( you apparently beat me by a few seconds)Anyway, I took a look at the math when a 6/12 roof intersects a 9/12 roof at a 135 outside corner, which would be one corner of an octagon. Mr Jalapeno, For example, if the 2 roof pitches involved were 3/12 and 6/12, the correct hip pitch is not 4.5/17. Is this correct? Same with ridges, this is what determines which pitch is the Major and the other Minor. You can join roofs to other roofs or walls, or unjoin them if they were previously joined. Can't do it the way you have it drawn. Report Labels (3) Architecture pitched Roof 0 Likes Reply 1 REPLY Message 2 of 2 alan.johnson7YLND in reply to: u2165896 02-24-2023 05:52 AM JavaScript is disabled. This is Ken's square root of R1 squared plus R2 squared or the square root of 9 + 36 but is divided by R2. ", This guy drew a lot of things that can't be built. The first step is to make a scale drawing of the entire roof locating the exterior walls ridges and. 2) Also, if you will "fly" around in your model and look up the valley you will notice that the valley line does not align to the outside of the inside corner of the fascia as it should. Add 12-inch to the length. run, as opposed to the 12-in. This is a dialog window which overlays the main content of the page. Realized made math error refigured and I'm going with a 5/12 instead.jim. . (And use "Face -to-Face" of stud walls for the rough frame dimensions. Have you ever wondered how roofs tie together? The second roof line isn't fully integrating into the first, as shown in the attached photo the main roofline is fully roofed underneath the existing roof. This page has been translated for your convenience with an automatic translation service. Add 12-inch to the length. Usages vary from region to region, nation to nation, and from one builder or architect to another. His step 4 & 5 multiplying by 17 and dividing by twelve merely converts these numbers to a new base of 17 and 3.8 on your square. Thanks for sharing! Do not sell or share my personal information. Measure the length of the joined area. It would be really cool to see another SU Demo showing how to draw in SketchUp an Irregular H/V Roof with the proportionate offset and square shouldered H/V Rafters. Do not include the sheathing thickness, that should be part of the overall overhang dimension, as that is how rafter lengths should be calculated from.). How do I make it seamless? It should be 12 inches wide. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. "The Machine Shop and the Works. Select an edge of the roof that you want to join, and then select the wall or roof to which you want to join the roof. This site is protected by reCAPTCHA and the Google. How do you join two pitched roofs together? Generally, we can describe the double pitched roof as a triangle that consists of two surfaces which are connected with ridge on the top, Click Modify tab Geometry panel (Join/Unjoin Roof).Select an edge of the roof that you want to join, and then select the wall or roof to which you want to join the roof. Fit rafter board into the U-shaped hangers and nail it in place. It sounds complicated but in practice it isn't. Shed roof is your best option I think. The ridge is the highest point on a roof, and youll hear professionals occasionally refer to it as a peak. Can some one give me a hand. *R Butters,I've been slow in responding to your post. A real competent DIY.If I have any roof framing questons in the future can I feel free to ask you? Modern Principles of Design". "What do ya mean you can't build it? Your in-depth and wide ranging experience from work and business along with extensive knowledge of SketchUp is always an asset to the discussion here. About point No. 1. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The 17-in. *Jim,That was pretty amazing. Centered" question. I appreciate your input on this topic. Can't find what you're looking for? ), Even with SketchUp, and drawing Irregular H/V Roofs, it helps to know the proportions of the roofs to construct everything perfect. Measure the offset in SU and you'll see it is less than 1/2". The idea of showing bevels on top of the ridges is to help visualize how the roof planes "plane out" with aid of the "Z flashing" effect in SkectchUp. It's looking like I'm going to have to eat a slice or two :-), "You could do it like this (centered), . 02-24-2023 03:33 AM Two pitched roofs different slopes joining together Hi Everyone, Quick question, can someone help me with this, please? "Larry Haun., The very Efficient Carpenter. Pick the section where two edges will cross. About the overhangs/fascia issue; Your SU model has the Major Roof showing the Fascia planed to the outside shoulder and the Minor Roof is planed to the inside shoulder, so the model is inconsistent in that respect. One side of the hip triangle is 1 (one foot) and the other is R1/R2*1 or R1/R2 (thats why we chose one). I can't see how or why the offset is necessary though. The hip/valley members are 1 1/2" thick and my intent was to show the bottom surface of roof sheathing meeting at their centers. =). Thanks for sharing at The Digital Jobsite. Its a matter of choosing where to compromise in a selection of geometric constraints. Pick the section where two edges will cross. A lead hand framer is saying go with the lower pitch (3/17) as the hip and frame 3/12 jacks into it on the one side and the 6/12 jacks into it from the other side. Now how about how to figure the hip and valley when the roofs meet at either a forty five or 135 degree angle.jim, *Woke up at three this morning. Another by-product of this roof configuration is varying soffit heights and widths which require further design decisions. Or do a shed roof tying into the two hips on the sides and sloping up and tying into the main roof on the back. (i.e. Quick question, can someone help me with this, please? Well also get a look at how actual rafter framing would look on such a roof. I agree it would be a great resource for the learning process. This is the base number on your square. So if you make the plumb cut on the hip 6/12, it should fit nicely.Here's something really unusual.Look at the drawing. Joining two sloping roof sections together, such as in the case of a shed or gable roof, then. Your observation is correct about the H/V line meeting the inside corner of the fascia instead of the outside. Roof terminology is not rigidly defined. *Hi Art,No question is ever dumb. Step Four: Place the rubberized asphalt membrane on top of the roof section. The hip and valley pitch would be 7 9/16"/12 or on your speed square, that would be a 10.7 hip, just a little under the 11 mark.Using a framing square that would be about 10 11/16 / 17.Ken, I have only built one roof where a hip was joining two different pitch roofs at the corner of a house. nov 1, 2021. Image two gable roofs side by side. How to Finish the Top Edge of a Shed Roof. How to Calculate Rafters for Intersecting Roof Planes the Easy Way, Model and Measure Part One: Hip Rafters Demystified by Visualizing in SketchUp, Expert insights on techniques and principles. An inspirational, peaceful, listening experience. This page has been translated for your convenience with an automatic translation service. The result is better understood by looking at the original geometry of the problem. Inspection The first thing that you need is to do a thorough inspection and have an idea of the overall situation of the joining area. 1) If the H/V rafters are not backed, the H/V rafters should not be equally split from the Hip/Valley line in plan-view. Below are the steps on how to join two roofs together if they have different pitch: Prepare the area by identifying where the two different-pitched roofs will meet. The new roof will need to be cut to the right angle so that it fits snugly against the roof. To Illustrate this using SketchUp and your models dimensions, draw a right triangle with one leg at 25' 9-3/8" and the other leg length at 17'2-5/8", now scale the triangle down so the hypotenuse is reduced to 1-1/2" (or the thickness of the H/V Rafter) I will then use this scaled down triangle to properly place the H/V footprint, in SketchUp virtually as well as on the job reality too. *Spend the 80 bucks on a construction master 4 calculator and all of your problems will be solved. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. 4) Type of Join and the structure to hold the roof together Well, there are many join types that you can consider. *KenActually the formula that my brother worked out for me was for the ninety degree hip. For any other 2 roof pitches, just substitute the new unit rises for 3 and 6 in the above steps. Another option would be to raise the current kitchen roof to match the new roof, but as it joins the neighbours roof, we would have to just raise our side and somehow join it to the neighbours lower one. If I do a "Part III" as you suggest I can address this to help eliminate confusion. Step 2) Find the square root of the sum of the squares of the unit rises, square root(3+6)=square root(9+36)=square root(45)= 6.7082, Step 3) Divide the result of step 1, by the result of step 2.18/6.7082=2.6833, Step 4) multiply step 3 by 172.6833x17=45.6161, Step 5) divide the result in step 4 by 12, Step 6) put the answer in step 5 over 17. Grandpa and my dad always used "12" for everything, never calculated, just eyeballed the hips and jacks and cut in place with a handsaw, always getting within 1/4" of centers. Joining Two Roofs with Different Pitches. "The length of hip rafters is calculated on the basis of a 17-in. Viewers who look closely at the (newly revised) Off-Angle Roof model will notice complex angle/bevel cuts necessary when the H/V rafters are centered. Autodesk does not warrant, either expressly or implied, the accuracy, reliability or completeness of the information translated by the machine translation service and will not be liable for damages or losses caused by the trust placed in the translation service. Trusted, in-depth guidance from the pros for framing a durable, code-compliant house. Thanks so much Bill.Maurice Doyle. To translate this article, select a language. - M.K. Use more sealant along the top edges of all shingle strips. Is is possible to join 2 pitched roofs of differing heights? add a new layer of shingles, which means that the old roof will not be removed/teared off. . When we change one of the two roof pitches to make them unequal, the path of the hip will swing away from the bisected line, towards the steeper plate. Image Result For How To Tie Two Gable Roofs Together Gable Roof Design Roof Design Gable Roof. Helping You to Do It Yourself! Make sure to always pull the same way for every rafter or you'll confuse yourself.6:16 - 7:59 Cutting rafters.With numbers pulled up top, everything can be done down below. For a better experience, please enable JavaScript in your browser before proceeding. Since the "offset" H/V method you've explained (very clearly) is new to me, I've got to spend a little time figuring out how best to model and then explain the process. joining two pitched roofs together. Can't find what you're looking for? Do you happen to have a good recipe for humble pie? This means that one intersecting roof is built on top of the other. Just wanted to let you know that I've re-worked the roof model for this blog post and uploaded it to the Component Warehouse. I guess I will have to track one down up here. The roof pitch can change, but the units of run, 12 for a common and 17 for the hip remain constant. Joining 2 pitched roofs of different inclinations. Hooking trusses or rafters that are already in location on a 24\" layout, makes sure you don't end up with problems when sheathing.5:21 - 6:15 Pulling numbers for rafter numbers.All of my numbers were pulled from long-point of the 63* on a 45* to long-point of the 6/12 head cut at the top of the ridge. *Tool Shed,Your figures are very close and I'm sure the roof came out nicely using the figures that you mentioned.The actual bevels are 39 for the 12/12 jacks and 51 for the 9 3/4 /12 jacks. However! | Roof Framing MattBangsWood 292K subscribers Join Subscribe 3.1K Share Save 329K views 1 year ago #building #carpentry #construction Have you ever. *Ken describe-rarelyCrazy thing is you got me through that one in February and now in March I'm faced with a similar situation, This time though it is a 9/12 into an 11/12. With regular pitch H/V roofs the equality simplifies fascia alignments. I was taught to split the different pitches thus coming up with the hip pitch. Roof shapes include flat (or shed), gabled, hipped, arched, domed, and a wide variety of other configurations detailed below.[1]. Go to Solution. Add decking atop the roof and nail on metal flashing where the shed roof joins the existing roof. The modal window is a 'site map' of the most critical areas of the site. run on a common rafter. Apply sealant over exposed nails on the last strip. Or at least at the same time. The other is to get the fascias to line up. I'm not exactly sure what the point of your first comment is. Then you have to cricket both sides between the existing hips and the new one. Dictionary of architecture and building construction. Establish the pitches. Start your subscription today and save up to 70%. For this project he wanted uprights under the longer rafters, seen done here.18:51 - 20:09 Explaining the roof system.This should be self-explanatory.20:10 - 21:27 Roof sheathing installation.4'x8'x5/8\" ZIP System Sheathing from Huberwood: www.huberwood.com/ for more information.21:28 - 22:34 Project Recap._________________ : https://www.amazon.com/shop/mattbangswood?listId=3E3RY20WI7A06\u0026ref=idea_share_inf :_________________: https://www.instagram.com/MattBangsWood2 : https://www.youtube.com/MattPanella: https://www.facebook.com/MattBangsWood : https://www.hammr.com/matt:__________ 10%: https://ariat.dkkdet.net/c/2029241/696794/10644 : https://www.toolbelts.com/ : https://www.badworkwear.com/(CODE: \"\")#construction #building #carpentry Determine where the two roof edges will cross and add 12 inches to that length. Solved by barthbradley. A valley joint, the two overlapping sections of roofing material, is cut to form an inverted V-shaped ridge. If there is viewer interest I will draw and upload a roof framing model to clarify how wall and rafter framing would be configured to meet this design criteria. When framing Irregular Hip/Valley Roofs, the H/V Rafter members are not equally split by the sheathing lines. joining two pitched roofs together. Autodesk does not warrant, either expressly or implied, the accuracy, reliability or completeness of the information translated by the machine translation service and will not be liable for damages or losses caused by the trust placed in the translation service. This forum discussion should start fulfilling that requirement. Pavilion roof: A low-pitched roof hipped equally on all sides and centered over a square or regular polygonal floor plan. Become a member and get unlimited site access, including the Your depth of knowledge and insight will benefit any who invest a little time to read our dialog. Also, when building an Irregular with Equal Ridge heights, the tangent of the plan angle is (Minor Span/Major Span). *Jim,No problem.Roof framing is what I do for a living Jim, and I enjoy the math that is associated with it, and enjoy talking about it with others like yourself.I worked out a formula for the Unit Rise of a hip or valley that occurs when two different roof pitches intersect at a 135 inside (valley), or outside (hip) corner. I was taught to split the different pitches thus coming up with the hip pitch. . After doing the math I still checked it the old string-line, level and square way. The roof framer would need to use his quality conscience to decide what, if anything, should be done to correct it. Here's how!0:00 - 2:45 Sleepers installed.Sleepers are where your rafters will land, these are installed nailed down into trusses or rafters below to ensure a solid connection.2:46 - 4:09 Ridge Board installed.The Ridge is where your rafters will but into up at the top, your ridge board creates the 'peak' of the roof. Thanks Sly, I was too tired to do that. But here it will be different, since the hip rafter doesn't lie at 45 degrees to the commons. It works best with contrasts in siding, stone or other features. Privacy | Do not sell or share my personal information | Cookie preferences | Report noncompliance | Terms of use| 2023 Autodesk Inc. All rights reserved. The subtle though important issues about hip/valley placement that you've highlighted in our ongoing dialog on the Tale of Two Pitches saga have inspired me to follow your suggestion to do a follow up post showing the "offset method" of framing an off-angle hip roof system. Although uncommon, there are situations where architectural parameters require off angle hip and valley roof construction. On this Wikipedia the language links are at the top of the page across from the article title. Based on the pitch of the roof, joining roofs can be categorized into two sections. It appears that you have the meeting planes aligned to the inside of the fascia thickness instead of the outsides. I can confidently Get home building tips, offers, and expert advice in your inbox. This situation that Jim has decribed, 2 different pitches intersecting at a 135 corner, rarely occurs. Truth is, Irregular H/V Rafters can be put in either way, Centered of Shifted, but If you want the roof to be easier to construct, and fit together absolutely perfect, then it is my opinion that the shifted method is better. Step 1 - Preparing the Area Step 2 - Measuring the Length of the Joined Area Step 3 - Prepare a Piece of Flashing Material Step 4 - Place the Flashing on the Meeting Point Step 5 - Sealing the Edges of The Roof with Lumber Step 6 - Apply a Bead of the Sealant Material Step 7 - Securing the Flashing What Is Roof Pitch? The wall must be attached to the target roof and the target roof must be a footprint roof. Prepare a flashing material in the width of approximately 12-inch. Is there a substitute for septic systems? If you had to put in a hip jack on the 6/12 side of the hip, it would have to run from the ridge to the hip ( like a valley jack), not from the plate to the hip, as a normal hip jack would. Showing the bevels on the Ridges and H/V rafters adds to the confusion. (489.78 kB) My business partner and I recently added a large screened-in porch with a gable roof onto a client's home. Hopefully by that time I'll have learned enough about the process to post a viable follow up. Joining Two Roofs of Different Pitches By John Carroll Download the PDF version of this article. I'm sure you may be hearing fromn me.jim. building an unequal slope intersection is an essential part of becoming a journeyman carpenter. I watched both parts of the FHB tutorials about this model (linked below) with great interest. Save my name, email, and website in this browser for the next time I comment. I should have adjusted things at the time as now you've nearly convinced me I should re-work the model. It is the process where roofers install a new roof over your existing one, i.e. Can a roof have 2 different pitches? I drew it right here on this paper! 2023 The Taunton Press, Inc. All rights reserved. Doesn't make sense to me!). Otherwise, you'll invariably end up with an uneven structure. As there are as many ways to model things as there are to build them I hope other viewers appreciate the methods and perspective shared in your comments,I know I do. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. You cannot join a roof to more than one top face of another roof. Just use R1 on one side and sqroot of the sum of the squares all divided by R2 on the other side of the square. but there's a better way." That's the hip pitch. ), The thing about asymmetrical offset H/V rafters that I really prefer is the ease with which they can be processed. Ken's answer in step three of 2.6833 is correct when using 2.6833 and 12 on your framing square. Revit Architecture Forum. joining two pitched roofs together. Well, here's what you need for joining two roofs with different heights. Solids Tools make quick work of cutting complex angles on virtual jack, hip, and valley rafters. Cant see the rest of your roof but you could try roof by extrusion. The porch joined the house at right angles to a shed roof section. with a few changes on what you have made it would be a great resource to use to teach apprentices that have a hard time visualizing. The Fora platform includes forum software by XenForo. Why stand around on the jobsite scratching your head when you can cut an entire virtual roof in the comfort of your own home.The true power of Sketchup is revealed when you can cut an entire complex roof system on the ground then hoist it all upstairs for a perfect fit (lumber inconsistencies aside). It was fun to build this roof framing model considering the Great Weather, Straight Lumber and a fully functional Board Stretcher available at The Digital Job Site. up from the valley center, and cut through the shingles and underlayment. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! Don't know if the hips are going to cause issues with it, always been gables when I've done them. Your tutorials on using SketchUp are very good but your understanding of the Irregular Geometry is slightly off. armed forces vacation club for veterans sims 4 fishing spots henford; how do i renew my oklahoma snap benefits online? Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page. I see a problem on the horizon though: what to title the new post? i.e. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Building an addition on a house requires connecting two roofs, whether the new space is a wing of living areas or a carport. We never got around to the 135 degree stuff. 2. See the whole room at werethejoneses.com. In this episode I'll go through and show you how to join two roofs together to form a valley. Answer was of course 5/12. I guess I would have, but, I am sort of glad I posted the message and received great replys. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. Passmore, Augustine C. (1904). And, the same geometry found at the plane of the intersecting plates can also be found at the plane of the top of the ridge board. Checkout this next video clip to look into the what and why of soffit conditions generated with off-angle roof construction. If desired, set the lines of the second roof to be slope defining, except the roof line that will be coincident with the first roof or the wall. Parallel gable roof additions are one of the most commonly employed techniques if youre looking to. Install f. How do I stop my toilet flapper from closing too fast? 2023 The Taunton Press, Inc. All rights reserved. Would you explain to me where the (.7071) came from.Also how would you go about figuring the hip shorting and set backs and the 2 backing angles. Cowan, Henry J., and Peter R. Smith. joining two pitched roofs together2nd battalion, 4th field artillery regiment. ( the same thing that occurs at a 90 corner when 2 different roof pitches are involved)It just so happens, because of the ratio of the roof pitches that you have, 6:9, that the hip will swing to Answer (1 of 4): To join two flat roofs together, you will need to follow these steps: 1. Multi-pitched roof: Gable (ridged, dual-pitched, peaked, saddle, pack-saddle, saddleback, span roof): A simple roof design shaped like an inverted V. Cross gabled: The result of joining two or more gabled roof sections together, forming a T or L shape for the simplest forms, or any number of more complex shapes. That's what Fascias cover up. You can install a shallow pitched roof over your existing flat roof, add a trussed ranch-style roof to convert to cathedral walls, or even build a new floor and install the pitched roof above that. He can out woodwork, drywall tape and finish me hands down. Thanks for your valuable input and feedback on a topic you're obviously invested in. See if it reminds you of your brother's formula that you lost.Let URL = the Unit Rise of the lower pitch roofLet URH = the Unit Rise of the higher pitched roofThen the Unit Rise of the Hip or Valley is equal to= (.7071 x URL x URH)/sqrt( (URL)+ (URH) - 1.4142 x URL x URH)In you example, URL = 6 and URH = 9Substituting these unit rises into the formula, we getUnit Rise of Hip/Val = (.7071 x 6 x 9)/sqrt(36 + 81 - 1.4142 x 54) = 5.99Therefore, the Pitch of the hip or valley would be 5.99/12, or for all practical purposes, 6/12.Does that look familiar? *Thanks Maurice: Good ol' sq root of 2, should have guessed that, but never too old to learn. Things you will need: Working gloves Measuring tape Permanent marker Screwdriver Circular saw Metal snips Metal screws 2-by-4 and 1-by-1 lumber Butyl caulking 12-inch aluminum flashing Shingle Shingle remover Saw Roofing nails Underlayments Metal snips Procedures: 5 Jun. June 18, 2019, 10:35 am. Valley. ( the same thing that occurs at a 90 corner when 2 different roof pitches are involved)It just so happens, because of the ratio of the roof pitches that you have, 6:9, that the hip will swing to a position where it makes an angle of 41 3/4 with the 9/12 plate, and 93 1/4 with the 6/12 plate, as shown in the attached drawing.For all practical purposes, the run of the irregular hip, is almost identical to the run of a 6/12 common rafter. This information should be the secret "clue" for the placement and rotation of the Hip Rafter as you demonstrate the Hip roof construction in your tutorials. How to Install Cable Rail Around Wood-Post Corners, Podcast 543: Affordable Flooring, Replacing Replacement Windows, and Low-Flow Fans, Podcast 537: Members-only AftershowConversation With Builder Sam Friesen, Balancing Density and Privacy in Los Angeles, Plus, get an extra 20% off with code GIFT20, Fine Homebuilding Issue #313 Online Highlights, The Fine Homebuilding Interview: James Metoyer, 10 Steps to Install Crown Molding on Cabinets, Choosing the Right Construction Tape for the Job, Expert insights on techniques and principles. Another approach (my approach) is to draw the rafters first without a ridge beam; as if they are simply mitered at the peak. Thanks for the detailed answerI really appreciate it. Potted ferns on front door. Does centering the H/V warp the roof planes or some other subtle distortion? It also helped me to understand the point you raise: Soffit width and fascia height can be made equal by adjusting the roof pitch and rafter bearing height. This simplifies to (SQR(R2^2+R1^2))/R2. At the end of the second one you began verbally stumbling with your explanation a bit. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. This site is protected by reCAPTCHA and the Google. Roof shapes differ greatly from region to region, depending on the climate, materials available, customs, and many other considerations. Conical Chinese roof, Nanhai Academy, Taipei, A conical dry-stone roof on a Trullo hut, Apulia, Italy, Cross gabled roof at the Verla mill village and a UNESCO World Heritage Site in Kouvola, Curved form of a mansard roof with bell-cast eaves, Rommersdorf Abbey, Rheinland-Pfalz, Germany, A common form of gambrel roof, Captain Joseph Atwood house, 1752; now part of the Atwood House Museum, Chatham, Massachusetts, US, A less common form of gambrel roof with a curved lower roof slope with supporting curved soffits and thick tiles, Altnau, Switzerland, An ogee-curved roof, in both axes, Montacute Lodge, England, South Korean Woljeongsa Octagonal Nine Story Pagoda, A pyramid roof with a chimney exiting the peak, The Round House, Finchingfield, Essex, England, A pent roof is a lower roof attached to a wall, A Swedish Sateri is hipped and pent-hipped with two layers of eaves, Rounded pyramidal roof on a charchala style temple in India, A spiraled church tower roof, cloister, Loiret, France. Amsterdam: Elsevier/Architectural Press, 2008.304, crow-stepped, corbie stepped, stepped gable, List of commercially available roofing material, "Rainbow roof | Article about rainbow roof by The Free Dictionary", https://en.wikipedia.org/w/index.php?title=List_of_roof_shapes&oldid=1129678825, Short description is different from Wikidata, Articles with unsourced statements from December 2014, Creative Commons Attribution-ShareAlike License 3.0. I love a new challenge and learning experience so I'll be working on the SketchUp model first. The good thing is this time it is all trussed and I know those pretty well.Thanks again for all your help!jim, *Jim,Thanks for writing. (The old German Carpenters did them both ways.) I understand your explanation of the process for locating the offset hip/valley footprint. joining two pitched roofs together. Since I've personally not framed this type of roof using the offset method it may take awhile to put the Digital Jobsite Blog post together.