Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-24-2007, 10:17 PM   #1
Member
 
Join Date: May 2006
Posts: 252
Rewards Points: 250
Default

framing in roof over addition


I have gotten a lot of great advice from diychat and thought this would be a no brainer for seasoned framers/roofers.

The original house is only 16'6" wide, there was an addition on the backside with a flatroof. the addition is 9'1" I want to slope the roof over the addition.

my question is what size lumber should I use to fram the rafters? Would 2x6 suffice or should I go with 2x8"
here's what I got:
so on the front side of the house I have 8'3" to ridge with a 8/12 pitch

on the backside 9'1" was added so from the ridge to the outer rear wall is now 17'4"
I know the pitch will be shallower on the backside roughly about a 5/12.
The original trusses are the true 2x4" sized I know I need to use bigger dimmensional lumber with todays lumber.

I roughly calculated the length of the new rafter to be 19'4"
My question is will 2x6 be beefy enough using todays lumber (5 1/4") or should I pay the lil extra for overkill and go with 2x8"
vbrep_register("46170")

What have I done is offline   Reply With Quote
Old 05-25-2007, 08:50 PM   #2
Member
 
Join Date: Nov 2005
Posts: 141
Rewards Points: 75
Default

framing in roof over addition


Your lumber yard should have span tables for the species and grade of the lumber they carry and give you the dimension you need for that span. Or do a "Google" for lumber span tables and you'll be able to do it yourself.

Zero Punch is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Considering Room Addition & Roof Change pkthomas_ar Building & Construction 4 05-02-2007 07:41 PM
Reactions to Timeline for Framing Addition austinbirdman Building & Construction 6 01-19-2007 02:49 PM
Flat roof - Rolled? - leaks Advice? JJ2001 Roofing/Siding 4 11-19-2006 07:17 AM
second floor addition without removing original roof coralhead1 Building & Construction 8 10-06-2006 06:56 AM
Need help with framing roof for sunroom diehard_1955 Carpentry 1 04-27-2005 11:24 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.