We don't have many brick homes around here in central Vermont. I recently visited a one-story ranch home that was built with exterior walls of hollow core CMUs (concrete masonry units), a brick…Continue
"Jan makes some very good points. The reality is that PV panels are more attractive to homeowners than weatherization for a few reasons. 1)- the energy "savings" are much easier to quantify than for weatherization 2)- PV panels are a…"
"Okay to update you - 9 bags of insulation were removed and the smell is gone. Rats had been in the attic prior to my purchase and spray foam installation. Next is ventilation before summer kicks into high gear and I have to close my…"
"Although technically a "manufactured" home, the VERMOD company in Wilder, Vermont has been making NetZero ready one-story "modular" homes as replacements for old manufactured/mobile homes since 2013.
Last year Vermont was the…"
"When it comes to a topic as complex as a heating system, it is foolish to rely solely on bid prices to make a choice. Unfortunately for the consumer, the majority of contractors are very brief in their description of what they will provide for their…"
"It is interesting that people respond to questions like this with answers that make some significant and often incorrect assumptions.
The OP did not state what type of heating system there is or whether the temperature rises or falls when ascending…"
"Thank you for your advice Sean. The cellulose will be removed very soon and I'll make sure they clean it up properly. I already aerosealed my ducts so that should help tremendously. I'd like to give it some time before…"
"A few quick thoughts - main issue is in the summer with open cell? If so I would strongly check into that due to moisture drive is inwards during the heat of the day & many times people notice an odor it is due to improper mix
"Good point Brad. I wonder if there is something IN my attic that was not detected and is now encapsulated in the attic, in the cellulose?
HMMMMM..... A lot to think about. Thank you again for being a sounding board in this thread.…"
"Jan, you bring up another possible source of that bad odor, the Icynene. If the mixture of Part A and Part B is not in the proper ratio, you will get chronic out-gassing of odors. I previously mentioned the possibility of Ammonium Sulphate in the…"
"Which is why I always measure bath fan flow (with the Energy Conservatory pan and DG-700 meter) and try to verify where and how it is exhausted.
I have seen brand brand new Panasonic bath fans vented with plastic flex duct into voids, kneewalls and…"
"Brad - thank you for your insights. I listed a home for sale with that Whisper Green fan - loved it! I'll check it out. THANK YOU!
I appreciate all the insights I can get.
As a realtor, having good sources of…"
"During our hot summer months, the odor that is created in my attic is noticeably bad and it infiltrates my house via the attic access in my master closet - of all places to have an odor created! I've lived in the house now for 2 years and…"
"Good points John. As a contractor, if a client provides a product (such as a bath fan) and asks me to install it, I usually will but with the caveat that I provide NO warranty of any kind.
I am a big fan of the Panasonic Whisper Green fan. You can…"
"I would not 100% of the time recommend removing the fibrous insulation on the attic floor with the roof deck is insulated. I'm not sure from your description that is your odor problem. I am questioning if your house is tight enough…"
"Thank you John! That's my plan, swap out the fans first. Appreciate the advice!
As a realtor with 2 designations in green building, we still have to rely on others to do the work. Like most consumer products, i…"
"Are the bathroom fans ducted to the outside or into the attic?
If they exhaust outside, *Not* into the (now sealed) attic, great. Replace your bath fans with a new one. Get an 80 CFM model ( to still move 50 CFM from the…"
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