TJ Alexander
  • Sunapee, NH
  • United States
Share on Facebook Share on Facebook Share Twitter

TJ Alexander's Friends

  • Marg properties

TJ Alexander's Discussions

So many homes have poorly installed fiberglass insulation. Have you been successful with a retrofit dense pack cellulose?
5 Replies

Doing testing of existing homes it is typical to see mottled patterns of surface temperatures with the FLIR Infrared Thermal Imager during Blower Door Testing.  Part of the problem is air sealing and…Continue

Started this discussion. Last reply by James P. Weingardt Jul 5.

 

TJ Alexander's Page

Latest Activity

James P. Weingardt replied to TJ Alexander's discussion So many homes have poorly installed fiberglass insulation. Have you been successful with a retrofit dense pack cellulose?
"We are dense packing walls with insulation present and receiving good results in the Denver CO area.  Overall home air leakage reduction of 300 cfm per job.   Bestway Insualtion has been dense packing existing fiberglass walls for…"
Jul 5
Dan Auer replied to TJ Alexander's discussion So many homes have poorly installed fiberglass insulation. Have you been successful with a retrofit dense pack cellulose?
"I am doing lots of dense pack cellulose over batted walls. Huge reduction in air leakage, no off gassing. Tracked billing history for two years, very cost effective. SIR greater than 1. O yea."
Jul 3
Bpb Farmer replied to TJ Alexander's discussion So many homes have poorly installed fiberglass insulation. Have you been successful with a retrofit dense pack cellulose?
"Do your self and your wallet a favor and get injection foam. The traditional insulation's are not worth the dust, allergy's, rodents, bugs and loss of "R" value with time. Do your research and you will not buy anything else.…"
Jul 3
Dan Wildenhaus replied to TJ Alexander's discussion So many homes have poorly installed fiberglass insulation. Have you been successful with a retrofit dense pack cellulose?
"Hey TJ, using the tube fill method with cellulose, contractors in the Puget Sound area (that would be around Seattle WA) have been dense packing right over the R-11 fiberglass batts with good success.  Keep in mind, this probably does not have…"
Jun 26
TJ Alexander's discussion was featured

So many homes have poorly installed fiberglass insulation. Have you been successful with a retrofit dense pack cellulose?

Doing testing of existing homes it is typical to see mottled patterns of surface temperatures with the FLIR Infrared Thermal Imager during Blower Door Testing.  Part of the problem is air sealing and the other part of the problem is poorly installed fiberglass insulation.This is not a rant against fiberglass insulation (I am a fan of both Rock Wool/Roxul and dense packed cellulose) for retrofit projects.  Fiberglass batt or blown insulation can perform fine, if it is installed properly and the…See More
Jun 19
Bud Poll replied to TJ Alexander's discussion So many homes have poorly installed fiberglass insulation. Have you been successful with a retrofit dense pack cellulose?
"Hi TJ, I've never recommended it due to the cost benefit of adding the dense pack.  Even a poorly installed assembly will benefit from whatever insulation is there limiting the improvement that can be credited to drilling, dense packing,…"
Jun 19
TJ Alexander posted a discussion

So many homes have poorly installed fiberglass insulation. Have you been successful with a retrofit dense pack cellulose?

Doing testing of existing homes it is typical to see mottled patterns of surface temperatures with the FLIR Infrared Thermal Imager during Blower Door Testing.  Part of the problem is air sealing and the other part of the problem is poorly installed fiberglass insulation.This is not a rant against fiberglass insulation (I am a fan of both Rock Wool/Roxul and dense packed cellulose) for retrofit projects.  Fiberglass batt or blown insulation can perform fine, if it is installed properly and the…See More
Jun 19
TJ Alexander posted a blog post

So many homes have fiberglass insulation that is poorly installed in New Hampshire and elsewhere

Doing testing of existing homes it is typical to see mottled patterns of surface temperatures with the FLIR Infrared Thermal Imager during Blower Door Testing.  Part of the problem is air sealing and the other part of the problem is poorly installed fiberglass insulation.This is not a rant against fiberglass insulation (I am a fan of both Rock Wool/Roxul and dense packed cellulose) for retrofit projects.  Fiberglass batt or blown insulation can perform fine, if it is installed properly and the…See More
Jun 12

TJ Alexander just added their location.
(via Member Map)

Mar 23, 2012
TJ Alexander is now a member of Home Energy Pros
Feb 15, 2012

Profile Information

Company
Thermo Building Services LLC
Professional Certification
BPI Building Analyst
Professional Interests
Energy Auditing and problem solving in existing buildings as well as energy efficiency.

I am also involved in energy saving retrofits as well as heating and HVAC system upgrades and alternative energy sources. Keeping up with regular training on the best use of materials and design of mechanical systems to get the best efficiency to cost ratio for the client.
Website URL
http://thermobuildingservices.com

TJ Alexander's Blog

So many homes have fiberglass insulation that is poorly installed in New Hampshire and elsewhere

Doing testing of existing homes it is typical to see mottled patterns of surface temperatures with the FLIR Infrared Thermal Imager during Blower Door Testing.  

Part of the problem is air sealing and the other part of the problem is poorly installed fiberglass insulation.

This is not a rant against fiberglass insulation (I am a fan of both Rock Wool/Roxul and dense packed cellulose) for retrofit projects.  Fiberglass batt or blown insulation can perform fine, if it is…

Continue

Posted on June 12, 2014 at 1:31pm

Comment Wall (1 comment)

You need to be a member of Home Energy Pros to add comments!

Join Home Energy Pros

At 8:04pm on February 15, 2012, Diane Chojnowski said…

Hi TJ,

Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!

Don't forget to upload your profile photo. And add your location on our Member Map!


Thanks!
Diane, HEP Moderator

 
 
 

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Richard Beyer replied to Howard Katzman's discussion UV lights on filters
"Howard, There are numerous manufacturer's who swear these systems work and then you have the…"
2 hours ago
Christopher Morin posted a blog post

How do You Test a TXV?

  Thermostatic Expansion Valves (TEV or TXV), one of the most popular metering devices for…See More
5 hours ago
Howard Katzman posted a discussion

UV lights on filters

 recently saw UV bulb installations in 2 HVAC systems in a home. Each system had the Lennox Healthy…See More
8 hours ago
Don Fitchett joined Michael Stuart's group
Thumbnail

INFRARED THERMOGRAPHY USERS

This group is dedicated to knowledge sharing and discussion of infrared thermography for building…See More
8 hours ago
Don Fitchett commented on Diane Chojnowski's group Pinterest
"While most of our (BIN95.com) energy post and boards are industrial related, there are crossovers…"
8 hours ago
Don Fitchett joined Diane Chojnowski's group
Thumbnail

Pinterest

Do you have a Pinterest board for energy topics?Post the link to your Pinterest energy board in the…See More
8 hours ago
Profile IconJosh Guenther, Deborah Green, Kenneth Brooks and 3 more joined Home Energy Pros
9 hours ago
Jim Gunshinan commented on Jim Gunshinan's blog post My Energy Upgrade California—The Numbers Are In
"Hi David, to answer one question, the crawlspace was covered with thick poly and the seams were…"
9 hours ago
David Eakin commented on Jim Gunshinan's blog post My Energy Upgrade California—The Numbers Are In
"Jim, Maybe a little more detail on the project is in order. You say that your crawlspace is now…"
9 hours ago
Jim Gunshinan commented on Jim Gunshinan's blog post My Energy Upgrade California—The Numbers Are In
"Ed, no problem, I caught your meaning. Ted, I made a judgement that a mini split would be the best…"
10 hours ago
tedkidd commented on Jim Gunshinan's blog post My Energy Upgrade California—The Numbers Are In
"That makes sense.   What are your criteria/metrics for determining what might be the…"
10 hours ago
Ed Voytovich commented on Jim Gunshinan's blog post My Energy Upgrade California—The Numbers Are In
"Yikes!  Not only did I misspell "roof" as "rood," I also meant to more…"
10 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service