Stack effect in airtight house

I built a 2 story 2000 sqft house in southern Vermont with zip sheathing and double stud walls with 12 inches of dense pack cellulose and 22 inches of cellulose…

Air Sealing and Insulating Masonry Walls

We're in the process of renovating part of a late 19th century carriage house in Philadelphia.  The stem walls are Wissahickon Schist and change to triple wythe brick about 3o"…

Thermoplastic And Water-Based Parking ?

Concrete, Thermal Mass, and Stable Ground Temps

I'm deeply curious if there's a calculator or theory of calculation that can determine the regulating impact of concrete walls (x" thick) that are connected to footings of a given…

Can you build Double Stud Wall with Zip system?

Is it possible to build Joe Lstiburek's double wall [https://buildingscience.com/sites/default/files/migrate/pdf/2014_HighR_Wall_Sheet_02_double_stud.pdf] with Zip system as A/V barrier without moisture control issues in a zone 5 region (Joe usually advises against OSB…

Foundation Insulation Help: Concrete Slab Over 3′ of pit run gravel

Hoping for advice on how best to insulate our home foundation in California zone 4b, (or now called climate zone 2). This is a barndominium type owner build on a…

Weather logic OSB liquid flash

By builder did not do a sealant on the transition from the sill plate to the concrete foundation and The Weatherlogic OSB sheeting.having watched too many Matt Risinger videos I…

New insulated stud competing with Tstuds’ “Warmstud” product

Thought folks might be interested in this new (to me) product from SIS panels called "Studulate"https://sispanels.com/studulate/  

Ducted heat pump vs mini splits in spray foam roof attic

Hi All,We have a high efficiency HTC mod con natural gas boiler w/ radiant downstairs and flat panel radiators upstairs. It does amazing in our 2200 ft2 Vermont house and…

Greenest House?