Below Grade Basement Tile: Insulation? - Flooring - DIY Chatroom Home Improvement Forum
Advertisement


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Flooring

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

Reply
 
Thread Tools Display Modes
Old 01-08-2015, 11:52 AM   #1
Member
 
Join Date: Jul 2012
Posts: 43
Rewards Points: 76
Default

Below grade basement tile: insulation?


So I was considering an electric radiant floor setup for our basement (in mass).

But I think cost is a bit high for a room only used on weekends...

We've had temperatures consistently below 20*F the past few days, and honestly the slab isn't all that cold (a cheap point and shoot thermometer is reading 56* on the bare slab, with the rest of the house at about 62). It's chilly, but not unbearable if you're wearing socks.

I want to preserve some ceiling height, so I'd like to keep my flooring and substrate below 1".

I was originally considering ditra or super seal direct to the slab, and then ceramic tile.

But now I'm wondering if maybe using 1/2" xps and cement board would be a good Idea, instead of ditra?

Delta FL or DMX one step would be great, but vinyl flooring doesn't have the same appeal as ceramic.

Advertisement

gizzygone is offline   Reply With Quote
Old 01-08-2015, 07:25 PM   #2
Pro Flooring Installer
 
rusty baker's Avatar
 
Join Date: Feb 2009
Location: SW Missouri
Posts: 4,097
Rewards Points: 2,464
Default

Below grade basement tile: insulation?


What not do it right and just put the ceramic directly on the slab with thinset?

Advertisement

__________________
The ads in my post are there without my permission. I do not endorse any of the products.
Semi-Retired Installer
Installing since 1973
rusty baker is offline   Reply With Quote
Old 01-08-2015, 07:45 PM   #3
Member
 
Join Date: Jul 2012
Posts: 43
Rewards Points: 76
Default

Below grade basement tile: insulation?


Quote:
Originally Posted by rusty baker View Post
What not do it right and just put the ceramic directly on the slab with thinset?
Is that truly the right way?

I know the appeal of the ditra is the "uncoupling" to prevent cracking with any slab movement. Also, I liked the fact that it acts as a vapor barrier to help keep moisture down.

The foam, I figured, provided an R-value while still giving you an "uncoupling" from the slab.
gizzygone is offline   Reply With Quote
Old 01-08-2015, 08:43 PM   #4
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 4,263
Rewards Points: 2,384
Default

Below grade basement tile: insulation?


Which tile installation method allows xps and concrete backer on a slab?

Go with Ditra for the reasons you stated, or direct if the floor is in good shape and small.

Jaz
__________________
Tile 4 You LLC Troy, MI

DITRA Installs - KERDI Watertight-Mold-Free Showers. I have NEVER made a mistake, I thought I did ONCE, but, I was WRONG! A+ BBB rating - est. 1987 - over 50 yrs. exp.
JazMan is offline   Reply With Quote
Old 01-08-2015, 09:27 PM   #5
Member
 
Join Date: Jul 2012
Posts: 43
Rewards Points: 76
Default

Below grade basement tile: insulation?


Quote:
Originally Posted by JazMan View Post
Which tile installation method allows xps and concrete backer on a slab?

Go with Ditra for the reasons you stated, or direct if the floor is in good shape and small.

Jaz
It was my own thoughts. Wasn't sure if it would work to add a touch of r value to keep the floors a bit warmer.
gizzygone is offline   Reply With Quote
Old 01-08-2015, 10:06 PM   #6
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 4,263
Rewards Points: 2,384
Default

Below grade basement tile: insulation?


Quote:
Originally Posted by gizzygone
It was my own thoughts. Wasn't sure if it would work to add a touch of r value to keep the floors a bit warmer.
OK, now you know what to do. Want a warmer floor? Spend the $$$ for the electric in-floor-heat with timer thermostat, or slippers.

The rest of the house is 62 f. ? Yikes you like it cold huh?

Jaz
__________________
Tile 4 You LLC Troy, MI

DITRA Installs - KERDI Watertight-Mold-Free Showers. I have NEVER made a mistake, I thought I did ONCE, but, I was WRONG! A+ BBB rating - est. 1987 - over 50 yrs. exp.
JazMan is offline   Reply With Quote
Old 01-08-2015, 10:34 PM   #7
Member
 
Join Date: Jul 2012
Posts: 43
Rewards Points: 76
Default

Below grade basement tile: insulation?


Quote:
Originally Posted by JazMan View Post
OK, now you know what to do. Want a warmer floor? Spend the $$$ for the electric in-floor-heat with timer thermostat, or slippers.

The rest of the house is 62 f. ? Yikes you like it cold huh?

Jaz
Well, I started another thread about the electric heat, only to find out installing the element directly to the slab would result in me heating more slab than tile...


Haha, 62 is the daytime temp for the dogs. We pump it up to a toasty 68 when we're home... I was just stopping back in for lunch when I did my temps
gizzygone is offline   Reply With Quote
Old 01-08-2015, 10:52 PM   #8
Member
 
Join Date: Sep 2012
Posts: 2,333
Rewards Points: 1,922
Default

Below grade basement tile: insulation?


Tile in basement looks cold feels cold. Carpet in basement looks warm feels warm.
SeniorSitizen is offline   Reply With Quote
Old 01-08-2015, 11:14 PM   #9
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 4,263
Rewards Points: 2,384
Default

Below grade basement tile: insulation?


Quote:
Originally Posted by seniorsitizen
Carpet in basement looks warm feels warm.
Yes, and it's not sanitary for a bathroom.

It's also not a good idea for basements that are humid or tend to have seepage now and then. But it's definitely warmer.

Jaz

Advertisement

__________________
Tile 4 You LLC Troy, MI

DITRA Installs - KERDI Watertight-Mold-Free Showers. I have NEVER made a mistake, I thought I did ONCE, but, I was WRONG! A+ BBB rating - est. 1987 - over 50 yrs. exp.
JazMan is offline   Reply With Quote
Reply


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
Insulation in basement ceiling for soundproofing -- will basement be too cold? jmai14 HVAC 3 11-16-2013 11:04 AM
Basement wall insulation / remodel question Chokingdogs Insulation 2 03-14-2013 01:26 AM
Insulate rim joist & basement walls- if exterior walls have no insulation? cbrc5eric Insulation 5 02-01-2012 08:47 AM
Insulation in basement floor joists and integrated garage speedster1 Building & Construction 3 12-07-2010 06:44 PM
basement issues - tile, mastic, moisture pfisch Flooring 6 12-01-2008 02:35 PM




Top of Page | View New Posts