Attic Insulation Install Old Over New? - Insulation - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 10-08-2012, 08:00 AM   #1
Join Date: Sep 2012
Posts: 53
Rewards Points: 49

Attic insulation install old over new?

Is there advantage to removing blown in insulation thats 20+ years old and installing new insulation?

Or can it be installed over the old without detriment?

Is there a cheap plastic grating that helps to walk/crawl around in the attic?

If you want to install new cieling drywall,
Should you remove the insulation before removing the drywall cealing?



john_bry is offline   Reply With Quote
Old 10-08-2012, 01:41 PM   #2
Exterior Construction
Windows on Wash's Avatar
Join Date: Aug 2011
Location: Washington DC Metro Area (VA, MD, DC)
Posts: 16,155
Rewards Points: 5,244
Blog Entries: 5

As long as the old insulation isn't contaminated, it isn't hurting anything.


Windows on Wash is offline   Reply With Quote
Old 10-08-2012, 02:30 PM   #3
Join Date: Nov 2011
Location: Hartfield VA
Posts: 34,419
Rewards Points: 13,968

I would make sure everything got air sealed before adding more insulation.
Just rip some 3/4 OSB for walk boards.
I duct tape a piece of 3" PVC to the hose so I can hit all the outsides while standing in the middle.
Make sure to add plastic or foam baffles in the rafter bays near the soffits so they do not get blocked up.
Where is this sheetrock your talking about? On the attic ceiling?
Got any pictures?
joecaption is offline   Reply With Quote

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
Insulating your attic Bob Mariani How To Guides 5 07-07-2013 08:49 PM
Attic Insulation Help Needed-What type, etc HandyFrank Building & Construction 9 12-15-2011 01:54 PM
Insulation, Ventilation in Cape Cod Side Attic Get'n er done Building & Construction 10 12-02-2010 11:38 PM
Attic Foam Board Insulation JasonCA Roofing/Siding 3 10-07-2010 12:56 AM
How hard to install insulation yourself? techprincesse Building & Construction 26 10-17-2009 09:57 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1