ACADuser Posted October 14, 2014 Share Posted October 14, 2014 99% of my roof trusses are pre manufactured trusses and sit on the wall with no 1-1/2" plate on CMU walls. Top chord on trusses are 2x4 except for tile roof or long spans & then 2x6 They can be standard overhang or cantilevered overhang. Overhangs vary from 12", 16", 20" & 24" Sub Fascia boards are 2x6 or 2x8 typically. What settings are critical to achieve a true roof plane & fascia height? Assume ceilings are 10' Link to comment Share on other sites More sharing options...
ebdesign Posted October 14, 2014 Share Posted October 14, 2014 Set your default framing for roofs & cl'gs at what you want to use for top & bot chords. Use an 8" CMU wall plus any other layers to get the finishes. In roof defaults, select "Trusses" & use "Raise/Lower From Cl'g Hgt" to define truss heel hgt. Link to comment Share on other sites More sharing options...
GeneDavis Posted October 14, 2014 Share Posted October 14, 2014 IN the wall? Please clarify. Trusses bear directly on CMU? Please confirm or clarify. Link to comment Share on other sites More sharing options...
CJSpud Posted October 14, 2014 Share Posted October 14, 2014 I think "in" was a typo. For ICF projects I frequently spec trusses to bear directly on the wall tops and use Simpson's META style embedded truss anchor which comes with a TSS plate which protects the truss from any moisture absorption from the concrete in the walls. Perhaps something similar will be used for the block walls and anchoring trusses. Link to comment Share on other sites More sharing options...
ebdesign Posted October 14, 2014 Share Posted October 14, 2014 Trusses bear directly on CMU? Yup. Done a lot in FL. Probably most of the time when trusses are used. Link to comment Share on other sites More sharing options...
ACADuser Posted October 14, 2014 Author Share Posted October 14, 2014 Yes a typo, ON the wall, exactly as described. Metal plate separates truss & concrete. I have a plan with varying plate heights. As I try to adjust roof heights I am confused as to what the best method is. There are two areas that need manual roof plane adjustments & auto roof keeps deleting the manual adjustments. I wanted to move bearing height up & down & change the roof pitch as well to determine the optimum for this house. Once I added interior walls, using the floor structure to adjust bearing plate height became troublesome. At first I was using just large areas, calling them hall, living room & garages. What method do you use to adjust plate heights to change the roof plane? BellaVistaLot3-r3.plan Link to comment Share on other sites More sharing options...
ACADuser Posted October 14, 2014 Author Share Posted October 14, 2014 Currently the lower roof is supposed to be 10', at garage the floor is -6. The higher roof on the main house is supposed to be 11'-8" The high roof over the entry needs to be adjusted up/down to be high enough to allow the entry shed roof and not be too high for the tie in on the right side roof. I may need to raise the 11'-8" roof to 12'-4" for a better look on the gable. It looks too tight where it is. I'll be back later today. Thanks Link to comment Share on other sites More sharing options...
CJSpud Posted October 14, 2014 Share Posted October 14, 2014 I haven't looked at your plan but the strategy I use for building roofs in Chief is to let the program build them for me according to the wall roof settings I input for each wall. Once the roof is built, if there's any editing that needs to be done, then I go from their manually. If you are experimenting with the look, I would suggest the same methods. Link to comment Share on other sites More sharing options...
kMoquin Posted October 14, 2014 Share Posted October 14, 2014 I usually move roof planes with the transform/replicate tool when I need to adjust their position. Link to comment Share on other sites More sharing options...
ebdesign Posted October 14, 2014 Share Posted October 14, 2014 You should be able to control wall plate hgt w/ the cl'g values called out in the Room Spec dbx. Roof slope over a specific wall can be changed from the default in the roof tab of the Wall spec dbx. I like to keep a camera open & tiled w/ the plan so I can get immediate feedback on the changes. If it didn't work, try something else. Once auto roofs have taken it as far as you can get it, turn auto roofs off & edit them manually. Link to comment Share on other sites More sharing options...
ACADuser Posted October 14, 2014 Author Share Posted October 14, 2014 I usually move roof planes with the transform/replicate tool when I need to adjust their position. Interesting, I assume you can raise/lower all roof planes at once, cool! Link to comment Share on other sites More sharing options...
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