Blow In Cellulose In Existing Walls - Insulation - DIY Chatroom Home Improvement Forum
Advertisement


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

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

Reply
 
Thread Tools Search this Thread
Display Modes
Old 01-30-2016, 12:28 PM   #1
Member
 
bryanp22's Avatar
 
Join Date: Nov 2011
Location: Milwaukee WI
Posts: 604
Rewards Points: 364
Default

Blow in cellulose in existing walls


Our house was built in 1946 and our closets are extremely cold. A couple years ago when I redid our bathroom shower the insulation in the walls basically fell apart upon me moving it slight to inspect it. I am considering hiring someone to blow in cellulose into my walls. Has anyone done that before? Was it worth it. Any ideas on how pricing is done?


Sent from my iPhone using Tapatalk
bryanp22 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-30-2016, 01:01 PM   #2
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: Washington DC Metro Area (VA, MD, DC)
Posts: 26,031
Rewards Points: 856
Blog Entries: 41
Default


It has been done quite a few times.

What does the exterior cladding consist of and how is it constructed (layers, drywall, WRB, plywood, sheathing, etc.)? Effectively, you will be changing the wall characteristics, what is cold inside the wall, and the wall's ability to dry out.

All of these things must be taken into consideration when you do this and if it makes sense.
Windows on Wash is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-30-2016, 02:34 PM   #3
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 37,109
Rewards Points: 1,858
Default


Balloon wall constrution?
Just hate to see a home get insulated by blowing insulation inside the walls without it being opened up so you can see what your doing.
If it is old enough and it's balloon wall framing those walls are open from the basement all the way to the attic.
A huge fire hazzard because the walls act as a chimney during a fire.
There's no fire blocking at the top and bottom of the walls.
Blown in always leaves gaps under all windows, any blocking or diaganals in the outside corners can leave whole areas with no insulation.
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-30-2016, 02:53 PM   #4
Member
 
bryanp22's Avatar
 
Join Date: Nov 2011
Location: Milwaukee WI
Posts: 604
Rewards Points: 364
Default


We got new siding a couple years ago so now it's vinyl siding then thin layer of foam. Old siding underneath is cedar with felt underneath. Then 2x4 wall. Inside walls are finished with 3/8 drywall with 3/8 of plaster on top. The siding we replaced was actually aluminum. We left the cedar on the house.


Sent from my iPhone using Tapatalk
bryanp22 is offline   Reply With Quote
Old 01-30-2016, 03:43 PM   #5
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 37,109
Rewards Points: 1,858
Default


Sorry to hear that.
Going to working backwards now.
Should have been blocking at the bottom of the walls (if it was balloon wall framing) drilling holes in the old siding, insulating, then the fan fold and siding.
Even better yet using insulated siding.
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is offline   Reply With Quote
Old 01-30-2016, 03:45 PM   #6
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 37,109
Rewards Points: 1,858
Default


How much insulation is in the attic?
In your area it should be a minimum of R50 which is about 12".
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is offline   Reply With Quote
Old 01-30-2016, 09:12 PM   #7
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: Washington DC Metro Area (VA, MD, DC)
Posts: 26,031
Rewards Points: 856
Blog Entries: 41
Default


If the house hasn't been air sealed and insulated (attic) yet, I would start there.

That will have a larger impact on the total energy consumption and feel of the home.

As far as the walls goes, It sounds like it should be able to dry to the exterior with the wood siding still intact (assuming the wood siding isn't airtight or vapor impermeable because of paint or other covering).
Windows on Wash is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Is it ok to blow insulation over existing fiberglass batts? pointer80 Insulation 1 12-21-2015 03:32 PM
Foam vs. Cellulose insulation in walls nhoj Insulation 10 12-19-2012 06:56 AM
How to solve problem of moist basement walls moist Building & Construction 4 08-30-2010 05:18 PM
Paint options for basement walls and floors 68tele Painting 8 10-28-2009 06:09 PM
Is regular wire ok to use if fishing through existing walls? slatergrl Electrical 10 02-29-2008 03:47 PM




Top of Page | View New Posts