Go Back   Forno Bravo Forum: The Wood-Fired Oven Community > Good Background Information > Newbie Forum

Like Tree1Likes

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-15-2013, 12:13 AM
Serf
 
Join Date: Oct 2011
Location: san diego
Posts: 8
Default really cheap floor insulation?

apologies in advance if this is a really stupid question (likewise if it's been posted previously), but could a really easy & cheap insulated floor be made out of pink fluffy wall insulation sandwiched between 2 pieces of concrete backer board?
Reply With Quote
  #2  
Old 02-15-2013, 12:28 AM
brickie in oz's Avatar
Il Pizzaiolo
 
Join Date: Mar 2009
Location: Whittlesea
Posts: 3,455
Default Re: really cheap floor insulation?

Quote:
Originally Posted by johnnybrewmeister View Post
apologies in advance if this is a really stupid question (likewise if it's been posted previously), but could a really easy & cheap insulated floor be made out of pink fluffy wall insulation sandwiched between 2 pieces of concrete backer board?
no!!....................
__________________
The English language was invented by people who couldnt spell.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote
  #3  
Old 02-15-2013, 02:56 AM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
Posts: 4,688
Default Re: really cheap floor insulation?

I used fibreglass insulating bats and insulating firebrick supports under the firebrick floor of my first oven. When I dismantled it to give to a friend there was no perceptible deterioration of the fibreglass insulation. Others have reported that the backing, or binders if it has some, burns.
Reply With Quote
  #4  
Old 02-15-2013, 09:15 AM
Ken524's Avatar
Il Pizzaiolo
 
Join Date: May 2007
Location: Kentucky
Posts: 1,649
Default Re: really cheap floor insulation?

Really cheap insulation that works:
Vermiculite: $12-$15 per 4 cubic feet
Portland cement: $7 per 50 lbs.

Vermiculite/Portland has been used by dozens (hundreds?) of Pompeii builders with excellent results. Even better is to spend the extra dollars for FornoBravo Board or CalSil board. The insulation under your floor is the most important part of your build.

I'm all for promoting creativity, but your oven floor is NOT the place to experiment. If you screw up this step, there is no easy way to fix it short of a complete tear-down.
deejayoh likes this.
__________________
Ken H. - Kentucky
42" Pompeii


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Updated!


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
...
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
...
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote
  #5  
Old 02-15-2013, 01:46 PM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
Posts: 4,688
Default Re: really cheap floor insulation?

In defence of using fiberglass bat insulation I used it on my first oven because it was free and I made the floor easily removable to access it. I now always use vermicrete or foamcrete or a combination of both.
Fiberglass insulation has been designed to insulate ceilings and presumably has a specific temperature range. The manufacturers should be able to provide this information, but I would guess that it is not designed for higher temperatures. It does compress easily so some method of preventing this is required. I used supports of insulating firebrick.The one huge advantage of fibreglass is that it does not absorb water like calsil board,mill board, vermicrete or perlcrete.
I can say that the fibreglass insulation I used worked pretty well, although that was only for about three years. Have no idea how it would hold up in the long term.
I wish I could buy vermiculite for only $12. I have to pay $40. And a 20kg bag of cement is $10

Last edited by david s; 02-15-2013 at 01:49 PM.
Reply With Quote
  #6  
Old 02-15-2013, 03:22 PM
Master Builder
 
Join Date: Oct 2012
Location: Los Angeles
Posts: 700
Default Re: really cheap floor insulation?

Here you go. Call them Pacific Insulation - Industrial Products - Pipe Insulation, Air Handling/HVAC, Industrial Insulation, Commercial Insulation, Insulation Fabrication. They are in Socal. Each board of Calcium Silicate costs $10. Thats pretty cheap to me? Decide how much you need and get it, do it right the first time around.
Reply With Quote
  #7  
Old 02-15-2013, 06:04 PM
Tscarborough's Avatar
Il Pizzaiolo
 
Join Date: Oct 2009
Location: Ausitn
Posts: 2,990
Default Re: really cheap floor insulation?

Perlite/vermiculite concrete at an 8-1 ratio is the cheapest insulation workable in the States, at least.
Reply With Quote
  #8  
Old 02-15-2013, 06:54 PM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
Posts: 4,688
Default Re: really cheap floor insulation?

If you look at foam concrete it is significantly cheaper.
Reply With Quote
  #9  
Old 02-15-2013, 07:12 PM
Tscarborough's Avatar
Il Pizzaiolo
 
Join Date: Oct 2009
Location: Ausitn
Posts: 2,990
Default Re: really cheap floor insulation?

Yes, but us mortals can not conjure it.
Reply With Quote
  #10  
Old 02-15-2013, 07:16 PM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
Posts: 4,688
Default Re: really cheap floor insulation?

It's easy. it's just like folding egg whites into a cake mix.
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mitre Saw? (aka cheap brick cutting) Spinal Tools, Tips and Techniques 8 08-07-2012 03:13 AM
Building WFO on the cheap nomnomnom Design Styles, Chimneys and Finish 21 11-22-2010 06:43 PM
Cheap Plush Soft Low Profile ~16" Oven Brush? scott123 Tools, Tips and Techniques 3 08-16-2010 01:19 AM
Cheap pizza oven Magicpizza Getting Started 0 03-02-2009 03:59 AM
mixed reviews, bitter bread, cheap cooking pots brokencookie Hearth Bread and Flatbread 4 11-10-2008 09:39 AM


All times are GMT -7. The time now is 07:20 AM.

Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
2006/10 Forno Bravo, LLC