Choosing a roof pitch: 8/12 or 6/12?
darrenrmartin
8 years ago
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Alex House
8 years agoRelated Discussions
Roof pitch - is 5:12 too "flat"?
Comments (4)I do not personally see that it will make much of a difference 5 or 6. This house although it is a contemporary rambler it has traditional elements and so a 7 pitch is probably more common -although in Southern Europe you could find a lot of roofs with 3 or 4 pitches. Most of the low pitched roofs on ranch style houses would be fully hipped and not use gables -(which is adding another significant cost to this design) You can find a lot with gables as well but generally not Dutch gabled and generally they would be of a simpler form. So really I think that you need to decide for yourself if the extra costs are worth it. As far as resale value generally speaking higher pitched roofs are more popular than lower but many other factors effect resale value other than roof pitch and if you live there for 20 years who knows what will be in style then....See MorePergola design: two 2x12x24 or 6x12x24
Comments (7)Henry, A couple of thoughts come to mind. Remember that this thing is heavy enough to wreak significant harm if it's underbuilt. I understand that snow load may not be much of an issue, but make sure you're thinking about how winds will impact this thing too. If it were me, I'd be looking at beam span tables for normal #40 loads. That'd probably be more appropriate of a comparison than what I was going for. I'm guessing that it'll push you into a 14" or 16" LVL scenario for that span. Doubled up 2x12"s might get you there, but I'd seriously think about moving in the posts a couple feet and cantilevering the beams. It'd probably hold it up, but I think it'll visually deflect and look funky. Second thought is that there isn't any angle bracing on your short axis. That is critical to making this thing free standing. Definitely don't rely on the footers to keep this thing from racking horizontally....See MoreDoes this roof pitch look like 8:12 to you?
Comments (10)Your roof is not an 8:12 and has been framed differently than in the elevation. Look at where the ridge board for the hip roof terminates on the right and left in the elevation, then compare to where the ridge board terminates in the actual framing photo. The ridge board is MUCH shorter in the actual framing than it is the front elevation. (Ridge is supposed to terminate to the left of the single window and near the middle of the single garage door in the elevation drawing. Ridge board terminates just to the left of the front door and doesn't even make it to the single garage door in actuality.) The result: the hip slope on the left and right is much shallower than what was shown on the elevation....See More9/12 vs 10/12 roof pitch
Comments (31)Going back to my kindergarten training, I traced your smaller gable end onto a piece of paper, come up with a 9 pitch. :) Using, 38" 4" for a span, would be a 19" 2" run. At a 9 pitch, the rise would be 14'-4 1/2 inches. At a 10 pitch, the rise would be 15'- 11 7/16 inches for a peak height difference of 1 ' -7 11/16. in the overall scheme of things, it would be negligible. My guess is that the designer used a 12/12 pitch on the garage to get enough vertical height so the "breezeway" portion of the roof would be able to plane in under the peak of the garage....See Moreartemis_ma
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