|
Miscellaneous Discussion for Inspectors Discuss whatever you wish in this forum. |
![]() |
|
Thread Tools |
#1
|
|||
|
|||
![]()
Can batt insulation be applied over existing batt insulation without probems, especially with moisture?
|
Need a home inspection in Louisiana? Check out InterNACHI's listing of Louisiana certified home inspectors. Or, find a home inspector anywhere in the world with our inspection search engine. |
#2
|
||||
|
||||
![]() Quote:
Yes provided they do not have a moisture seal paper as an example . Roy Cooke Roycooke@sympatico.ca Here are a couple of strings of mine https://www.nachi.org/forum/f48/roy-cooke-amazing-118930/ https://www.nachi.org/forum/f48/thanks-roy-cooke-sr-59651/ https://www.nachi.org/forum/f13/rece...-cooke-106880/ ............ |
#3
|
|||
|
|||
![]()
Yes as long as its unfaced
TRUE QUALITY HOME INSPECTIONS SCOTT OLENICK 142 AVENUE B HOLBROOK NY 11741 (631) 375-2919 TRUEQUALITYHOMEINSPECTIONS@GMAIL.COM |
#4
|
|||
|
|||
![]()
The first layer is kraft paper faced up. I should have clarified that to begin with.
|
#5
|
||||
|
||||
![]()
If you are in the Attic, Kraft face should be towards the warm side, then the other layer is installed perpendicular to the first layer.
![]() CMI 2004-2017 Retired Awards Committee Member U.S. Member of the Year Winner 2009 45 Years Residential/Commercial Builder http://www.homeinspectorpro.com/ (Report Software) Submit your AWARDS NOMINATIONS here The InterNACHI Awards Committee is the final authority of issuance of any award the committee offers.
|
#6
|
||||
|
||||
![]() Quote:
If it was my home and I could get to most areas in the attic . I would take the big fork you use to hold a roast tape it to a broom stick and then punch a few Like (15) holes per bat ) The existed painted ceiling is a pretty good vapour barrier . Roy Cooke Roycooke@sympatico.ca Here are a couple of strings of mine https://www.nachi.org/forum/f48/roy-cooke-amazing-118930/ https://www.nachi.org/forum/f48/thanks-roy-cooke-sr-59651/ https://www.nachi.org/forum/f13/rece...-cooke-106880/ ............ |
#7
|
|||
|
|||
![]() Quote:
Moisture will get trapped in between the ceiling and the kraft paper. The insulation was improperly installed to begin with. Once that is rectified, then as Marcel said, place the new batts perpendicular. This will help reduce thermal bridges. Knowing the insulation is improperly installed, you might want to also check the soffit vents to insure they are not blocked. Where there is a Will there is a Way!
Will Misegades TREC# 10465 RedFish Home Inspections ![]() www.redfishinspections.com Infraspection Institute Certified Infrared Thermographer Level I # 9631 "it's not just about how to turn on and tune the camera to make pretty colored spots!" David A. Andersen, Woodlawn, TN |
#8
|
||||
|
||||
![]()
William, correct as you are in the vapor barrier trap, I believe that Roy's method has been used in existing homes to negate the effectiveness of the kraft face vapor barrier so as to elliminate the necessitated removal of the existing insulation and still maintain it's effectiveness as described above.
In comparison to a vapor barrier under a floor slab, that has not been lapped properly, taped properly and punctured all over from construction activities, it is rendered useless as a vapor barrier. Same difference. ![]() CMI 2004-2017 Retired Awards Committee Member U.S. Member of the Year Winner 2009 45 Years Residential/Commercial Builder http://www.homeinspectorpro.com/ (Report Software) Submit your AWARDS NOMINATIONS here The InterNACHI Awards Committee is the final authority of issuance of any award the committee offers.
|
#9
|
|||
|
|||
![]()
Thanks guys for the input.
|
#10
|
|||
|
|||
![]()
The best way to achieve your goals is to go up in the attic and remove a section and throw it onto the other side. Air seal everything you can including gaps at the top plates. Put the insulation back properly and do the same to the next section. Once you get this done then add your new insulation and shoot for a grade 1 installation on both layers.
|
![]() |
Thread Tools | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Citizens insurance prepares to drop or reduce coverage, raise premiums | wsiegel | Florida Home Inspectors | 1 | 12/1/11 6:19 AM |
Insulating Your House from CMHC | mkyriacou | Canadian Home Inspectors | 10 | 2/14/10 3:50 PM |
Poly being applied to Basement walls | dvalley | Interior Inspections | 40 | 11/24/09 10:49 PM |
Options in selecting materials for basement construction | wdevries | Canadian Home Inspectors | 2 | 8/4/08 1:30 PM |
New Old Insulation | rcooke | Canadian Home Inspectors | 1 | 12/13/06 5:25 PM |