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roof question

Last Post 07 Feb 2011 07:18 PM by greentree. 27 Replies.

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jojo12

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cmkavala

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07 Feb 2011 02:50 PM
Greentree I know there is no gambrel or mansard, just responding to your previous post about costs, not the drawing. I have not used trusses for years, however I worked previously for two truss manufacturing plants, so I am well aware of the complexities of the hips vs gables and the cost difference.

Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />

greentree

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07 Feb 2011 03:17 PM
Posted By cmkavala on 07 Feb 2011 02:50 PM I worked previously for two truss manufacturing plants, so I am well aware of the complexities of the hips vs gables and the cost difference. Was that when gussets were plywood?

jojo12

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07 Feb 2011 03:27 PM
I think this is what was being recommded or a change on the rear, however, I do not think this affects my front side much at all. I guess the ultimate question is whether or not this design is that much cheaper from a truss and construction perspective than the first design. If it is only a grand cheaper I may as well go with the first because I prefer the looks, unless there is a structural or longevity issue to consider between the designs. Thanks

cmkavala

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07 Feb 2011 03:38 PM
Posted By greentree on 07 Feb 2011 03:17 PM Posted By cmkavala on 07 Feb 2011 02:50 PM I worked previously for two truss manufacturing plants, so I am well aware of the complexities of the hips vs gables and the cost difference. Was that when gussets were plywood? No it was using inter-lok steel gussets, but..... FYI plywood is not old school, that would be "split ring" trusses

Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />

greentree

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07 Feb 2011 03:51 PM
Jojo, the solution you posted seems a little jacked up. I think you're going to have to play with different pitches or bearing points to lessen that long valley. I attached a chief render of what I was thinking. If I build a porch like you have chief wants to create that nasty valley and I dont have the time to fix that, so you'll just have to imagine that portion on my render. Edit: Looks like you beat me to it.

jojo12

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07 Feb 2011 05:29 PM
Thanks Greentree, but do you think that this results in a significantly better design from a cost persepctive or structural perspective, because all I have really changed is the rear of the house?

greentree

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07 Feb 2011 07:18 PM
In my opinion the improvements are only necessary on the back. Most likely you will find your revised design quite a bit cheaper, it will depend on your blueprint, elevations, dimensions and the truss plant itself. Structurally you're getting rid of significant wear points in a roof system ie: valleys and slope changes, basically simplifying the design and increasing pitch to shed the elements faster. Sounds like you would rather keep your rear elevation as it was, you're the one living there, build it how you want it. It's not like the original roof design is destined to fail, it just needs to be detailed correctly.