Insulating Questions - Building & Construction - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 07-01-2010, 10:07 AM   #1
Join Date: Jul 2010
Posts: 1
Rewards Points: 10

Insulating questions

I have a old house (1870) and one of its additions is a enclosed porch. The foundation extends the existing basement so I can walk around underneath it (maybe 7ft high). The room is 8X16 and began life as a uninsulated screened in porch. I have run heat into the room but it is cold due to lack of insulation. I have insulated the walls but not the ceiling or the floors. So here are my questions;

1. Should I insulate the floors from underneath with spray foam since it won't need a vapor barrier and it has high r-value

2. If I blow in insulation into the ceiling do I need to add vents to the soffets and the roof itself


kegelb is offline   Reply With Quote
Old 07-01-2010, 11:51 PM   #2
Join Date: Dec 2008
Location: Fairbanks, AK
Posts: 1,852
Rewards Points: 1,010

Insulating questions

Foam underneath is great, but the slab will still be cool or cold to your feet. If that is not an issue, fine. Otherwise, fir out and insulate inside, but you'll lose height, of course. The lid should always be ventilated; check w/ local building inspectors, etc, about whether or not you need a vapor barrier in your area, too.


jklingel is offline   Reply With Quote

insulation; foam; wall

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
Help How to Wire Bathroom "Fan Heater Light Night-light" unit, and questions Tryvidy Electrical 9 06-18-2012 03:37 PM
Insulating furnace/utility area cbrc5eric Building & Construction 3 04-30-2010 01:03 PM
Insulating basement ceiling - your recommendations? jtmann HVAC 8 11-24-2009 05:44 PM
Insulating brick above & close to grade Peter Shepherd Building & Construction 1 09-16-2009 07:41 AM
Laminate wood floor layout questions nathan.tran Flooring 4 08-30-2008 11:56 PM

Top of Page | View New Posts