Enclosing Porch: How To Insulate Floor?? - Building & Construction - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 10-07-2010, 08:33 PM   #1
Join Date: Oct 2010
Posts: 15
Rewards Points: 10

enclosing porch: how to insulate floor??

Hi everyone,

First off, this is a GREAT site, and have learned many things.

So, I am going to enclose my outdoor porch with two 2x6 walls and a patio door.

The current porch floor is deck board on top of 2x6 joists.

Do I have to pull up all the deck board and insulate the cavities with, say R-20? Or, can I simply use rigid foam board on top of the deck board, then add plywood and final flooring?

And, either way, how to I apply the vapour barrier or do I, and if so where? Tyvek house wrap?

Also, the current roof is 2x8 joists on double 2x8 beam. The roof material is plastic opague sheating that is rippled and rigid. Sorry, don't know the proper term for it.

It would be great to hear from anyone with sound knowledge on this sort thing.


p.s. I am located in Edmonton, Alberta Canada


Last edited by wwsteel; 10-07-2010 at 08:55 PM. Reason: location is relevant
wwsteel is offline   Reply With Quote
Old 10-07-2010, 08:53 PM   #2
Registered User
Join Date: Mar 2009
Posts: 10,825
Rewards Points: 3,716

enclosing porch: how to insulate floor??

There are probably no footings or concrete stem walls at the perimeter. To put walls in you must have these or a suitable substitute recognized by your local Building Department, who will inspect the structure for minimum safety standards. With the permit in hand, you can prove proper construction if ever needed for a claim with your H.O.Insurance carrier. You may also be liable after the house sale. Existing is a light-weight outdoor structure, different from a habitable space in so many ways. Your insulation choice may work, but I haven't guessed a posters location correctly yet.........



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.
WELCOME to the forums, if I forgot to say it!
Gary in WA is offline   Reply With Quote
Old 10-08-2010, 12:44 AM   #3
jlhaslip's Avatar
Join Date: Dec 2009
Location: Canadian Rockies
Posts: 1,280
Rewards Points: 500

enclosing porch: how to insulate floor??

What GBR says would apply to your Edmonton location. And the footings would need to go down below frost, which is below 4 ft, but I forget exactly what Edmonton requires. I haven't lived there since 1990.
Originally Posted by Bud Cline View Post
Go ahead and apply for a variance, those guys at City Hall can use a good laugh.
jlhaslip is offline   Reply With Quote

convert deck

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
How to anchor toilet flange to porcelain tile? bobmg Plumbing 32 08-19-2013 10:32 PM
Seal Peel and Stick Tiles? Echo1 Flooring 21 06-22-2012 10:07 PM
Best way to insulate basement walls / floor? benze Building & Construction 1 09-07-2010 08:17 PM
covered concrete porch..what kind of floor? captjackny Flooring 4 02-26-2010 11:47 AM
Hardwood floor questions (56K) ukrainetz Flooring 1 08-02-2009 02:08 PM

Top of Page | View New Posts