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 07-21-2007, 12:00 AM   #1
Newbie
 
Join Date: Jul 2007
Posts: 1
Rewards Points: 10
Question

Having Addition built- question on footings


Hi all-

Not strictly a DIY, admittedly, although I am being attentive and interested in the construction process.

We are having an addition built onto the back of our home, replacing an enclosed patio/sunroom. The old sunroom was aluminum and sliders, and has already been removed. The old room was constructed on a square concrete slab, 14'x14'. The new room will be built without removing this old slab, but will be 16'x16'. The new room will be a standard living space, built with studs, drywall, with new vinyl windows, a slider and a fiberglass entry door.

Our contractor says he can construct the room essentially like a deck. He dug 4 holes for what he called footers, but I think are more accurately called piers (correct me if I'm wrong). These holes are deep enough to be below frost, and are just to the outside of the concrete slab. so the room will attach to the house (obviously) and then be built on the beams on top of these piers, as well as supports on the existing slab, as I understand it.

My well-meaning and well-informed Father-in-Law does not think this is acceptable for such a room. He wants me to press the contractor to make an old-fashioned 3-foot continuous footer.

I'm a grown man with kids of my own, but I feel like a kid myself as I try to make sense of 2 different techniques for footings! My township's building inspector will be visiting Monday to inspect the work before the contractor pours concrete, so I guess I'll get at least the town's requirements, but I'd love to get some info from any of you all who are knowledgable. Thanks for anything you can share.
JC

joshjani is offline   Reply With Quote
Old 07-21-2007, 06:03 AM   #2
Lic. Builder/GC/Remodeler
 
AtlanticWBConst.'s Avatar
 
Join Date: May 2006
Location: New England
Posts: 7,556
Rewards Points: 2,000
Default

Having Addition built- question on footings


I can't comment on the exact design layout of how he is doing it. What I mean is: in terms of the number of "pier footings" being used for the layout, how he is designing the framework, attaching to the home, etc...

Hopefully the town will properly evaluate his plans.

But to answer your question about using "pier footings" or constructing a "Freezewall" style foundation (typically what is found):
The pier footings that he is using (as long as they are properly dimensionalized (depth and diameter) can be perfectly adequate. He needs to make sure that the bays between the floor joists are properly insulated. He should use rigid foam, and make sure that the area is properly sealed, etc, etc...

To Clarify, regarding this question:
Quote:
Originally Posted by joshjani View Post
My well-meaning and well-informed Father-in-Law does not think this is acceptable for such a room. He wants me to press the contractor to make an old-fashioned 3-foot continuous footer.
Small room additions are built all the time using concrete pier footings. The reasons are many. They include cost savings (Cost effectivness). We have built them this way ourselves. We have even built them this way - from architect designed and engineer approved plans.


Last edited by AtlanticWBConst.; 07-21-2007 at 06:10 AM. Reason: spelling
AtlanticWBConst. 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
Basement Renovation Question KUIPORNG Remodeling 234 08-26-2008 08:19 AM
Floor joists for 2nd Floor Addition poptop Building & Construction 4 01-11-2008 07:57 PM
framing in roof over addition What have I done Building & Construction 1 05-25-2007 07:50 PM
Home Addition cost? Russ Chewning Building & Construction 3 10-23-2006 07:59 PM
DWV Stack Question dcgray2 Plumbing 9 07-14-2006 12:56 PM




Top of Page | View New Posts

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