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
"If the drywall is in good shape, you should have little worries about the 50pa depressurization moving fibres of asbestos through the CMU and the drywall into the house. You could also do a Pressurization test and eliminate that.
What was the…"
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 exterior and a sheetrocked interior that is strapped to the CMUs, which are filled with vermiculite insulation. I am looking for advice from auditors who have experience with this type of construction. Would you feel comfortable doing a BDT (blower door test) that depressurizes the house? What concerns…See More
"You are correct, Richard. This pattern is not typical of UFF, but that does not mean that it cannot be UFF. What we don't know are the conditions: what is the span of the image? The difference in shading is relatively minor if the span is about…"
"Infrared imaging is only one of many tools to be used for assessment, and is very much subject to interpretation. In order to interpret as accurately as possible, one must know a variety of factors. What was the span of the image and what was the…"
"The comments appear to be directed more at commercial steam systems, but there is no question that water quality is starting to become a major issue with hydronic systems as well. Here in Vermont, and New England, the use of boilers and hydronic…"
"Dennis, combustion appliances do not put out any specific amount or range of CO (or CO/Hr). A very small amount (in the single digits) of CO may be given off with a new appliance, but it is often after they have operated for a while that the CO…"
"If an auditor has not actually done a lot of field work, air sealing and insulating, they are not able to provide truly useful work proposals or recommendations. An insulation contractor then only has a written report to go by. They still have to go…"
"Always. For electric, with permission, I can get that through our local HPwES provider, Efficiency Vermont. If electric consumption is a client's concern, I will ask for access to their on-line account, or for the information needed to set one…"
"My first thought is whether the motion sensor and/or the LED lamp is a cheap one. I had so many problems with cheap or inexpensive motion sensors that I was installing for clients that I started buying RAB brand. It has been probably 15 years and I…"
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…"
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!