Constructing A Walkout Basement Mud Room - Building & Construction - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 01-20-2010, 05:53 PM   #1
Join Date: Dec 2009
Posts: 4
Rewards Points: 10

Constructing a walkout basement mud room

I'm looking at building a basement entrance / mudroom at my walkout basement door. It's at the corner of the basement. I have concrete block walls that are not finished with any type of wall covering other than paint. I'd like to enclose the door with a small room that will allow us to walk in and drop our boots after we're done working in the garden or shoveling snow off of the patio. I want to insulate it so that the room can be a thermal break. The exterior door doesn't seal the cold out very well. Also, I don't know if putting foam panels on the concrete walls inside this room would be necessary. I also plan to insulate the basement walls and finish them. I'm trying to decide how to seal any air leaks at the edges of the walls at the point where they meet the concrete walls. Spray foam might work but if anyone has any other suggestions I'd like to hear them. Any other suggestions or concerns on the construction of my addition would be appreciated.



DIY Hack is offline   Reply With Quote
Old 01-20-2010, 06:08 PM   #2
jlhaslip's Avatar
Join Date: Dec 2009
Location: Edmonton, Alberta
Posts: 1,719
Rewards Points: 282

spray foam would work for the big gaps at the Block mortar lines, yes.
Also, between the wood frame wall you will be attaching to the block, and the block wall, add a strip (or two) of Sill Gasket to the wood wall before you attach it. The Sill Gasket is about 1/8 th inch thick and is designed to stop air infiltration against irregular surfaces, ie between a bottom plate and concrete, but you could use it here as well.
In fact, re: the spray foam, you could go so far as to cut a rabbet along the length of the std and this would give you a better seal by increasing the amount of space you can foam.


jlhaslip is offline   Reply With Quote
Old 01-21-2010, 06:21 PM   #3
Registered User
Join Date: Mar 2009
Posts: 11,292
Rewards Points: 4,650

You'll want to check with your local building department on this for safety. They may have a 3' requirement from the corner to maintain the structural integrity of the building. Also the minimum lintel size. The foam board may be helpful but we don't have a clue where you live.

Be safe, Gary
If any ads are present below my answer or words underlined/colored, I do not condone/support/use the product or services listed/linked to, they are there without my consent.
17,000 dryer fires a year, when did you last clean the inside of the dryer near motor or the exhaust ducting?
Gary in WA is offline   Reply With Quote

Thread Tools
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
At a crossroads in my basement project - waterproofing help needed callisto9 Building & Construction 37 07-06-2015 07:40 AM
Insulating a cold/well room? Lynch Building & Construction 23 07-25-2014 02:49 PM
Insulate a basement walkout door? Shamus Building & Construction 3 09-25-2008 11:10 AM
Building room in basement... Packer Backer Remodeling 4 09-02-2008 08:20 PM
Sunlight for a Basement Room prglor Remodeling 1 08-31-2008 04:29 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1