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Found 2 results

  1. Currently I am in the process of recomputing many of the k-values for the materials that come shipped with VW there are quite a few things missing when regarding the calculation of K-values and R values - namely - Thermal Bridging. In Ashrae Fundamentals and ASHRAE 90.1 / International energy conservation code - there are values that are calculated separately for : 1. Wood Stud wall assemblies (Cavity Filled insulation batt) 2. Steel stud wall assemblies (cavity filled insulations) 3. CMU Assemblies (i.e. weight/cores grouted, ungrouted, filled or partially filled) 4. ASHRAE Fundamentals (Chapter 26 and chapter 33 respectively) There happens to be a predicament that is caused by composite materials vs traditional material types in VW 1. True R values cannot be determined from composite material k-values due to bridging calculated as noted in ASHRAE 90.1 and/or steel/wood reduction coefficients with insulated cavity walls, and / or concrete / masonry conditions with integrated insulation types. I.e. Masonry with grouted cores, or partially grouted insulated, partially grouted uninsulated, etc... 2. Do worksheets have the ability to subdivide composite materials in worksheets to show their respective counter parts? i.e. wood stud wall 16" o.c. w/ batt fiber insulation (is composed of two materials) - can worksheets show the composite material and their respective integral materials (i.e. batt fiber separate from wood stud wall partition) 3. Calculation of interior and exterior air film - is this automatically integrated into Energos? or should those components be added to each wall type? 4. Given that composite materials calculate composite k-value - based on the percentage of the respective components, an automated method's purpose of calculating UA values would be defeated (I think). Any ideas regarding this? As a result, my question is this : 1. What are the benefits of composite materials? What is their purpose, and how are they helpful to Energos or Energy conservation code compliance - other than finding the percentage value of components in their respective assemblies and multiplying them by their respective k / r values? This will certainly guide the material / composite material process - where i needed to decide to create CMU / grouted / insulated materials as a single material, or as a composite one? I know this post is long winded, hopefully we can have a productive discussion! Thanks in advance!
  2. Good morning, Ran into quite an annoying bug this morning when trying to assemble a curved curtain wall. Process - first i created a curved polyline to be the shape of my wall then used the tool distribute along path in order for me to segment my wall into workable corners afterwards i followed the contours of the intersections between my lines and curved profile. After assembly the wall, I noticed I cannot modify all the walls height at the same, and more importantly, when i reselect the walls - i cannot edit them anymore, as if a glitch happened. I'm uploading a file for your review. Let me know if you can recreate the bug. Note - you have to do it from scratch. If i close the file and reopen it, it doesn't reproduce the error anymore. I've reproduced this already on two machines. Note 2 - If you try to modify the walls - it will show that it is a wall, but as if its stuck on a command. If you press ctrl-5, it resets the tool. very strange. Note 3 - even after the quick fix, i notice the problem translates to other tools. In my opinion this could be a memory leak. This bug is w/ Vectorworks 2018 SP 2. I haven't tried with others. Sincerely, Sam Wall Glitch.vwx
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