Jerry Needham
  • Geneva, IL
  • United States
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Blower door test for small apartment building

Started this discussion. Last reply by Scott Katznelson 3 hours ago. 10 Replies

Today I received a request to test 4 units for a small apartment building.  He says the building is 32x52 which is 1560 SF.  There is 4 apartments which are 1 bedroom and living room plus bath and…Continue

HVAC Question about running fan continuously VS setting on Auto so it runs when AC or furnace runs

Started this discussion. Last reply by John White Sep 7. 24 Replies

I get a lot of confusion from homeowners who are told by their HVAC contractor to run the fan "on" all the time.  I realize that these high-efficiency furnaces now have the DC motors that take less…Continue

VERY TIGHT HOME WITH OVER SIZED AC

Started this discussion. Last reply by Chris Heenan Aug 23. 7 Replies

Just completed an audit and manual j for a home in downtown Chicago this week.  Home is less than 1 year. 5 stories include basement.  Block walls with brick over.  Closed cell entire wall bays.  2…Continue

Condensation on ceiling and walls of master bedroom

Started this discussion. Last reply by Michael Dunseith Oct 3. 11 Replies

Posted on wrong thing first time.  Have cust who claims to have condensation on ceiling in summer time.  has 2 ac... has approx 3,000 sf two story built 1978 mst br is only room with cathedral…Continue

 

Jerry Needham's Page

Latest Activity

Scott Katznelson replied to Jerry Needham's discussion Blower door test for small apartment building
"The most accurate way to accomplish this is to have 4 blower doors running at the same time, one for each apartment (maybe less, depending on the layout of the building). This is the only way to get individual infiltration numbers while eliminating…"
3 hours ago
John White replied to Jerry Needham's discussion Blower door test for small apartment building
"Well, I think it completely depends on the purpose and requirement of the test. Testing one unit in the building makes sense but if you are testing for a small apartment then you should follow the HVAC rules of the test. Checking the individual unit…"
Oct 12
John Nicholas replied to Jerry Needham's discussion Blower door test for small apartment building
"I can use my Duct Blaster on any house that I expect to be less than 1300 CFM through the fan.   I will be doing a final on a 2200 sf that had an AeroSeal and AeroBarrier applied.  Their ACH was 0.55 and TDL was 15 cfm @ 25.  I…"
Oct 11
Sean Lintow Sr replied to Jerry Needham's discussion Blower door test for small apartment building
"FYI, he is in Illinois where code is 5 (well up until March as noted when it drops to 4)  Heh one reason I love Retrotec - no need to buy optional rings :) Though I did see they now have a Passive House version now (Duct tester with panel which…"
Oct 11
John Nicholas replied to Jerry Needham's discussion Blower door test for small apartment building
"Here are two pictures of the duct blaster fan as a blower door.  1 in a door and 1 in a window.  The woindow has a DB Fan hole in the slip.  Extra Cost about $100.   The door has a shop made insert to attach the DB an to the…"
Oct 11
John Nicholas replied to Jerry Needham's discussion Blower door test for small apartment building
"What standard are you testing to? Energy Star requires 5 ACH @ 50.   Code is 3.0 etc etc.  What is the requirement?  What is the definition of residence or home.   Code defines a dwelling (residence) includes space for…"
Oct 11
John Nicholas replied to Jerry Needham's discussion Blower door test for small apartment building
"What standard are you testing to? Energy Star requires 5 ACH @ 50.   Code is 3.0 etc etc.  What is the requirement?  What is the definition of residence or home.   Code defines a dwelling (residence) includes space for…"
Oct 11
Sean Lintow Sr replied to Jerry Needham's discussion Blower door test for small apartment building
"New construction - commercial? If so you can test whole building as one unless inspector for some reason says test each unit  As for adiabatic - that option somewhat goes bye bye come March (thank goodness) but ELA is brought in as an option…"
Oct 7
Jerry Needham replied to Jerry Needham's discussion Blower door test for small apartment building
"Thanks David.  I have participated in the adiabatic leakage testing on a 16 unit building and it seem to work good.  Had hoped to not get that involved in this small project but may not have a choice.  Keeping my fingers crossed that…"
Oct 6
David Butler replied to Jerry Needham's discussion Blower door test for small apartment building
"It depends on purpose of test. If it's not for program or code compliance, then testing the building as one unit makes sense. It eliminates the pesky adiabatic leakage that would occur if you tested each unit individually. If you're…"
Oct 6
Jerry Needham posted a discussion

Blower door test for small apartment building

Today I received a request to test 4 units for a small apartment building.  He says the building is 32x52 which is 1560 SF.  There is 4 apartments which are 1 bedroom and living room plus bath and small kitchen.  If I test each unit, I suspect they are approx 400 SF.  These units will have to be very tight.  He wants me to open all the doors and test from one end of the hall.  I have never done this is 10 years so not sure this is kosher.Any thoughts.ThanksJerrySee More
Oct 5
Michael Dunseith replied to Jerry Needham's discussion Condensation on ceiling and walls of master bedroom
"Try using ceiling fan to move / mix air temps / gradients"
Oct 3
Sean Wiens liked Jerry Needham's discussion Condensation on ceiling and walls of master bedroom
Sep 20
John Nicholas replied to Jerry Needham's discussion Condensation on ceiling and walls of master bedroom
"Jerry, ;Have you opened the cathedral ceiling?  "
Sep 20
John White replied to Jerry Needham's discussion Condensation on ceiling and walls of master bedroom
"Condensation on ceiling occurs when the attic space above is poorly ventilated or insulated. The traps heat in the attic, which then warns the ceiling. When the cool air from your living space rises due to humidity in your home then it comes in…"
Sep 19
John White replied to Jerry Needham's discussion HVAC Question about running fan continuously VS setting on Auto so it runs when AC or furnace runs
"The fan only works when the furnace tells it to run. The fan is controlled by a timer circuit or at a boundary circuit on the device. The fan starts to run for approx. 40 seconds after the burners are switched on and off for approx. one minute after…"
Sep 7

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Company
Pro Energy Consultants
Professional Certification
BPI BA, HERS
Website URL
http://www.geneva.proenergyconsultants.com
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proenergyfv

Jerry Needham's Blog

Spray foam on attic deck to stop mold

Posted on April 7, 2018 at 8:57pm 2 Comments

I am working with an insulation company who has already applied 2" of closed cell foam over the deck of a roof deck that has been remediated for mold twice. It was thought by spraying the foam, there would be no chance of the mold coming back.  This is a million dollar home in the Chicagoland area and homeowner is trying to sell the home but a private home inspector says the foam will shorten the life of the roof and he has scared off perspective buyers with his talk.  I have told the…

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At 11:37am on January 1, 2014, Diane Chojnowski said…

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Scott Katznelson replied to Jerry Needham's discussion Blower door test for small apartment building
"The most accurate way to accomplish this is to have 4 blower doors running at the same time, one…"
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