Bruce Dichter
  • Santa Rosa, CA
  • United States
Share on Facebook Share on Facebook Share Twitter
  • Featured Blogs
  • Discussions (4)
  • Events
  • Groups
  • Photos
  • Photo Albums
  • Videos

Bruce Dichter's Discussions

Measuring moisture intrusion
6 Replies

Hi, All,My normal territory is in Northern California, where it's hot and dry.  Recently, however, I helped with an evaluation in the tropics, where the temperature was regularly in the mid-80s, as…Continue

Started this discussion. Last reply by William H Nickerson Jul 28, 2013.

 

Bruce Dichter's Page

Latest Activity

Bruce Dichter replied to Green Iowa AmeriCorps's discussion French door air sealing
"Another option to consider is adding an astragal.  This is a molding fastened to the outside edge of the passive door, lapping over the active door.  Run weather stripping on the inside face that contacts the active door.  This will…"
Nov 15, 2013
Bruce Dichter replied to Jack Baikoff's discussion Just how much does adding air barrier to a knee wall insulation increase it's performance?
"Is it possible that the perforations in the backing of the batt insulation are intended to allow for water vapor diffusion and not serve as an air barrier?  Generally moisture will move from hot to cool, and if it gets trapped in an assembly…"
Oct 18, 2013
William H Nickerson replied to Bruce Dichter's discussion Measuring moisture intrusion
"From his one email notice I just have spent the last 6 hrs. reading and downloading and printing out all that I can about moister removal. I live in central Virginia and the last 2 two weeks seen more condensation on exposed fiberglass bats than I…"
Jul 28, 2013
Bruce Dichter's discussion was featured

Measuring moisture intrusion

Hi, All,My normal territory is in Northern California, where it's hot and dry.  Recently, however, I helped with an evaluation in the tropics, where the temperature was regularly in the mid-80s, as was the relative humidity.  It was their winter.  One of the chief goals is to reduce electrical usage, which in turn means reducing the use of air conditioning.  Much of the load on the AC is to remove moisture, so it strikes me that one strategy is to limit moisture intrusion.  But how do you…See More
Jul 25, 2013
David Meiland replied to Bruce Dichter's discussion Measuring moisture intrusion
"I think you could do a passable job with a box fan, an anemometer, and a manometer."
Jul 20, 2013
Bud Poll replied to Bruce Dichter's discussion Measuring moisture intrusion
"I have an approach for estimating air leakage using just a manometer.  Only slightly better than a wild guess, but so much of what we do is based upon guessing, a little more can only help.  An option for a blower door might be Australia,…"
Jul 20, 2013
Bruce Dichter replied to Bruce Dichter's discussion Measuring moisture intrusion
"Hi, David and Bud, Thanks for your replies.  Full disclosure: I never performed a blower door test.  The island is in Fiji, and remote even by Fijian standards.  Also, the current is 220V.  So I wasn't able to arrange the…"
Jul 20, 2013
Bud Poll replied to Bruce Dichter's discussion Measuring moisture intrusion
"Hi Bruce ad David, The outside air, temp and humidity, sets a baseline for how low you can go without some form of powered mechanicals to remove moisture and or cool the space.  Even a tight house will need to exchange a lot of air to reduce…"
Jul 20, 2013
David Meiland replied to Bruce Dichter's discussion Measuring moisture intrusion
"Someone smarter than me could calculate the rate of vapor diffusion through the various materials you mention (such as the slab floor), given a few facts. I do think it would be worth exploring how much the slab might be contributing to interior…"
Jul 20, 2013
Bruce Dichter posted a discussion

Measuring moisture intrusion

Hi, All,My normal territory is in Northern California, where it's hot and dry.  Recently, however, I helped with an evaluation in the tropics, where the temperature was regularly in the mid-80s, as was the relative humidity.  It was their winter.  One of the chief goals is to reduce electrical usage, which in turn means reducing the use of air conditioning.  Much of the load on the AC is to remove moisture, so it strikes me that one strategy is to limit moisture intrusion.  But how do you…See More
Jul 19, 2013
Bruce Dichter is now a member of Home Energy Pros
Mar 18, 2011

Profile Information

Company
Living Homes Construction
Professional Certification
licensed general contractor; BPI Building Analyst

Comment Wall (1 comment)

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

Join Home Energy Pros

At 6:27pm on March 19, 2011, Diane Chojnowski said…

Hi Bruce,

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

Steve Waclo posted a discussion

Underperforming? Energy Efficiency of HVAC Equipment Suffers Due to Poor Installation

Hello all,A search of the site seems to indicate this recently published study from NIST has not…See More
4 hours ago
Steve Waclo joined Allison A. Bailes III's group
Thumbnail

HVAC

HVAC design, Manuals J, S, T, & D, Duct leakage, Air flow, ENERGY STAR new home requirements,…See More
5 hours ago
Bob Blanchette posted a discussion

Dual Fuel Systems, at what point do they make sense?

Heat Pump with furnace backup. These make no sense in our area with local NG rates, but they do…See More
18 hours ago
Bob Blanchette joined Hal Skinner's group
Thumbnail

The RCC Classroom (Radiant Control Coatings)

A group where energy professionals can learn about all the different energy saving aspects of…See More
18 hours ago
Shashank Kirloskar posted a blog post

Important Facts about Solar Energy

“I’d put my money on the sun and solar energy. What a source of power! I hope we don’t have to wait…See More
Thursday
reflintorm replied to Dennis McCarthy's discussion Solid state lighting - saves lives- and it improves life .
"In my observation, In most of the lightning appliances led bulbs are used because of their…"
Thursday
Chad Mcaulife posted photos
Wednesday
Bob Blanchette commented on Jeremy Begley's blog post The Home Envelope : Does it Really Matter in a Heat Loss Calculation
"Infiltration makes a HUGE difference. Look at the heat loads on a windy day vs. a calm one. On a…"
Wednesday

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service