Blocking airflow in commercial flex duct
Green Building Advisor
by JCGC
36m ago
Hello, I maintain a commercial hair studio that the tenants are often affected by hot air flow through the diffuser so I stuffed the duct with Roxul safe and sound to ..read more
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Speculative Q: Passive solar heated (outdoor) space as air source for heat pump?
Green Building Advisor
by jywarren
11h ago
This is a very speculative question, so thanks for humoring it -- for air source heat pumps which use outdoor air, would there be any advantage to enclosing the intake ..read more
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Is water trapped between slab’s Radon barrier and XPS insulation an issue?
Green Building Advisor
by idahobuild
11h ago
Hello All,We are working on our slab-on-grade foundation.  We received quite a bit of rain and are projected to get more in the coming days.We have the radon barrier (StegoHome ..read more
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Insulating and existing building
Green Building Advisor
by MuzzyRidge
14h ago
I have an existing building located in Maine that was never insulated. The exterior is completed. The interior has no finish. Since I don't have the option of insulating over ..read more
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All-in-One Heat Pumps
Green Building Advisor
by Jon Harrod
18h ago
The Ephoca AIO Wall Mount Pro serves as a model for the potential of packaged heat pumps in electrifying multifamily projects ..read more
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Chinese cabinets- formaldehyde and VOCs – what are the facts? Offgassing period?
Green Building Advisor
by BuildingFun
1d ago
I’ve read a lot of articles on imported cabinets and seem to get completely different opinions and results from each article.   I have no clue who to believe…1.  I’ve ..read more
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Any experiences with green residential building in Iowa?
Green Building Advisor
by otinkyad
1d ago
I'm a homeowner in Iowa looking to have a new home built, with airtightness and moisture resistance a top prioirity (because we have had to flee our old home because ..read more
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Vacation property and deciding on effecient use of tankless propane water heater
Green Building Advisor
by MechELady
1d ago
So I am building a vacation house in SC that will have 6 bathrooms. We (2 people) will live in the house year round but will have people visit periodically ..read more
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Energy Upgrades in an Old House
Green Building Advisor
by Allison A. Bailes III, PhD
2d ago
Sealing the source of a major air leak, correctly insulating kneewalls, and insulating water pipes go a long way toward improving comfort and energy efficiency in a hot-humid climate ..read more
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Floor support check and questions
Green Building Advisor
by Beardoh
2d ago
I am hoping to get confirmation  that I am thinking about the supporting walls (in the basement) for my floor correctly.  House is a 1 story 46’ x 32’, simple ..read more
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