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WarrenW

06:02PM | 07/19/05
Member Since: 11/09/04
9 lifetime posts
Bvtools
I plan to build a screened porch soon and instead of having the flat slanted roof, I want to have a pitched roof. Which is better to use? Roof trusses or rafters using 2x8's? I'm in Georgia so there is no snow. I want to shingle it once its up.

I'm just wondering if there is an advantage of one over the other construction wise. The trusses looks easier since I just build the deck and walls and then place the trusses on top. Also, I want my porch to come out 16 feet from the house.

Thanks!


homebild

06:09AM | 07/21/05
Member Since: 01/28/03
693 lifetime posts
Whether you use trusses or simply cut rafters has more to do with the overall spans than anything else.

Trusses can be built to free span longer distances without intermediate center supports.

Rafters and associated ceiling joists are limited in their spans because of the need for center bearing walls usually at no more than 14 foot intervals.

If you are planning to have a 16 foot free span, trusses may be your only alternative.
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