Patio Roof

Reply

  #1  
Old 04-15-13, 09:38 AM
Member
Thread Starter
Join Date: May 2011
Location: US
Posts: 68
Received 0 Votes on 0 Posts
Patio Roof

I am building a roof to cover a 12x20 patio that will be poured after the roof is built. I am going to use 6x6 posts on the outer corners and put them in the ground. I will then be running beams from the posts to 2x6 studs of home. 3/12 pitch roof. Shingles. The truss span will be 20'. My question is - can I use 2 6x6 posts for a 20' span using these materials, or do I need to use 3 posts 10' apart?
 
Sponsored Links
  #2  
Old 04-15-13, 10:02 AM
Group Moderator
Join Date: Oct 2004
Location: WI/MN
Posts: 19,369
Received 54 Votes on 51 Posts
Sorry, can't answer your specific questions but I would change a couple of the details you aren't questioning:
1 I would not put wood in the ground, I would pour footings which extend above the ground and put post brackets into them.
2 3/12 pitch is not enough, IMO, for shingles.
 
  #3  
Old 04-15-13, 10:36 AM
Member
Thread Starter
Join Date: May 2011
Location: US
Posts: 68
Received 0 Votes on 0 Posts
Don't put posts in ground due to rot? I was told if I put them in ground I could coat them in a tar type material up to ground level so no water would penetrate.
 
  #4  
Old 04-15-13, 10:48 AM
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 21,244
Received 267 Votes on 242 Posts
Tar covered posts in the ground is an old school, pole barn method. I would check with your inspections dept. if that type of construction is permitted. It might be, but it's not commonly done like that anymore.

Since you mentioned trusses, in my area that is a requirement for engineering which the truss company usually provides with the required engineering, drawings, official seal and signature. Using standard tables traditional lumber can be used to stick build without the engineering requirement.

Most shingles I have seen specify 4:12 as the minimum allowable pitch.
 
  #5  
Old 04-15-13, 12:38 PM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 46,280
Received 142 Votes on 127 Posts
I don't know a lot about roofing but I thought that 3/12 was the minimum. Seems like I read that on a shingle package somewhere along the line. Most MHs have 3/12 pitch and some of them have shingles so it must pass some kind of inspection/code.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
 
Ask a Question
Question Title:
Description:
Your question will be posted in: