House+ offers a comprehensive guide to sustainable construction methods and materials that can help reduce the environmental impact of buildings including passive solar design, green roofs, rainwater harvesting systems, electrification, heat pumps, insulation and air-sealing advice, carbon reduction, and more.
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Get Up to Speed on the Latest Energy Code Changes

Building science expert Robby Schwarz talks about the revisions in the 2021 IECC and how to effectively apply them to make homes more energy efficient.

With

Author Headshot Robby Schwarz

Details of Using Stone Wool Insulation

In this video, learn what stone wool insulation is, how to calculate and install it in wall cavities, and why it is so effective.

Keep up to date with everything that's new in House+
8 Building Science Mistakes to Avoid

From missing flashing details to incomplete roof venting, understanding how things go wrong is the first step to getting them right.

Electrification
Inflation Reduction Act: Energy Upgrades and Tax Credits

Explore the details of this landmark legislation and learn how it can benefit homeowners and contractors.

Carbon and Energy Conservation
Electric House Made With Cross-Laminated Timber

Integrating cross-laminated timber, wood-fiber insulation, panelized construction, and a solar-tile roof for Passive-House performance.

The End of Deep Energy Retrofits?

Learn why one design-build remodeling firm stopped doing these types of renovations in favor of other efficiency improvements and upgrades.

Improve Home Efficiency with Inflation Reduction Act Rebates

The new legislation would provide $9 billion for efficiency upgrades, including heating, cooling and cooking appliances, photovoltaics, and electric vehicles.

Electrification
Smart and Agnostic Electrical Panel

As both a load center and an energy management system, the SPAN electrical panel allows residents to prioritize energy usage and loads.

Practical Ways to Electrify an Old House

A heat-pump and solar-PV system transformed this 100-plus-year-old home into an energy-efficient all-electric house on its way to net-zero.

The Power Plant of the Future

Solar-battery hybrid power systems are poised for explosive growth.

Heat Pumps
Wall Sleeve for Minisplit Penetrations

Fibrous insulation is hard to seal on exterior walls when installing heat pumps. These plastic tubes can help.

Critical Details for Ductless Heat Pumps

Trouble-free performance begins with properly installed line sets that pass rigorous testing for leaks.

Designing an HVAC System for a Passive House

Learn why these products were chosen to create balanced ventilation and improve comfort and indoor-air quality in this high-performance renovation.

Insulation & Air Sealing
Protect Foundation Foam

A great choice for exterior foam on foundations is a borate-treated expanded polystyrene (EPS) that performs at a similar R-value to extruded polystyrene (XPS) but is much less environmentally unfriendly.

Flashing a Window Using ZIP Tape

Travis and Joe walk through the step-by-step process of prepping, caulking, and flashing a window using stretch tape and flashing tape from ZIP System.

Maintain Insulation R-Value With AccuVent Baffles

Installed between the roof sheathing and insulation, these baffles help improve energy efficiency.

Sustainable Architecture
The Fine Homebuilding Interview: Katrin Klingenberg

This architect and engineer developed a Passive House standard for the United States. In this interview, she discusses what it will take to move the building industry toward climate-positive realities.

High-Performance Wall of Windows

The functional areas of this lakeside home all have an unobstructed lake view while still maintaining excellent energy efficiency.

Solar Shingles in Austin

A Tesla roof powers this five-bedroom Texas home and then transfers extra energy to the power grid.

Sustainable Remodeling
Insulating a Roof: Getting Higher R-Value

An expert weights in on how to boost performance without ruining the look.

Gray-Water System for a Sustainable Home

A remodel aimed at water conservation becomes a case study for resource-efficient whole-house design.

Passive-House Remodel in A Historic Neighborhood

A century-old bungalow is renovated to maintain its original character while achieving Passive-House certification.

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