The 20 by 2020 Challenge

The 20 by 2020 Challenge

The 20 by 2020 Challenge is a local campaign to promote the development of 20 Passive House or net zero energy projects of 20,000 square feet or larger in King County by the year 2020 next year! The good news is that Zero Net Carbon buildings can make economic sense today. Passive House construction is a cost-effective means to revolutionize building energy performance, particularly for larger buildings. Many of the pioneering Passive House buildings in the US have been affordable housing projects. By establishing an ambitious energy target and using science-based design and modeling, Passive House buildings reduce energy consumption by as much as 75%. Couple this with rooftop solar or a contract for green power, and you’ve got a Zero Net Carbon building.

The 20 by 2020 Building Challenge will provide “proof of concept” that Passive House can propel our shift to a carbon-sustainable future. Passive House is the world’s leading standard for energy efficient construction. It combines building enclosure efficiency and passive solar strategies in a system for designing and building cost effective, comfortable, energy efficient buildings.

The major components of a Passive House include:

  • Super-insulated envelope
  • Ultra-high-performance windows
  • Airtight construction (0.6 air changes / hr at 50 Pascals)
  • Eliminating or reducing thermal bridging
  • Heat-recovery ventilation
  • Using passive heat sources (solar of course, but also equipment, lighting, and occupants).

Learn more here! 

Product Spotlight: Cumaru Decking

Product Spotlight: Cumaru Decking

Mighty House Construction’s latest detached auxiliary dwelling unit (DADU) includes WalkGreen® FSC Certified Cumaru Decking. Cumaru Decking is among the most resilient natural untreated decking materials available on the market today. Supplied by Green Home Solutions, Cumaru is a highly dense exotic hardwood that has a warm honey brown color with beautiful grain. Cumaru, also known as Brazilian Chestnut or Brazilian Teak, can be left untreated to age to a nice silver-grey or oiled to retain its warm brown color.

Widely recognized as the global “gold standard” for responsible forestry practices, Forest Stewardship Council ® (FSC) Certified products are sustainably harvested and ensure eco-friendly and economically viable forestry practices. The FSC Decking is one of the top decking products available in the market in terms of its strength, stability, durability and natural resistance to the elements. The FSC Decking does not contain any harmful chemicals or risk of contaminating water sources.

Decks are fantastic ways to maximize outdoor life in the NW! Mighty House Construction builds everything from backyard porches to decks large enough to celebrate all of life’s milestones.

See more photos in our Flickr Gallery

Tiny Houses for Women, By Women

Tiny Houses for Women, By Women

The Whittier Heights tiny house village consists fo 15 colorful tiny homes that house women who have experienced homelessness.
“Located on city-owned land, it is one of nine tiny-house villages in Seattle that serve as emergency shelters for the city’s homeless population. It is operated by the Low Income Housing Institute, which develops and operates housing for low-income and homeless people in Washington state. Each house costs about $2,500 to build, and the labor is mostly provided by volunteers.”
This particular village was also built by a team dozens of women in the trades from across the state, who came together as the Women4Women project. Creator of this project, Alice Lockridge, hoped to make a space for tradeswomen to come together and make a difference while also finding camaraderie and a break from their male-dominated workplaces. Read the full article from YES! Magazine here.
High Performance Building at JLC Live

High Performance Building at JLC Live

residential construction show

JLC Live is the only regional trade event in the Pacific Northwest for builders, remodelers, contractors and their crews. And this year, they’re partnering with the Northwest EcoBuilding Guild to go green and high performance! The event showcases over 70 building product manufacturers, including, 5 LIVE building clinics and over 40 conference sessions, all led by nationally recognized experts who are available to sharpen both business and job site skills. Join us at the conference to learn about efficient heat, and on the expo floor to see a live demo of high performance durable buildings!

REGISTER | GET A FREE EXPO PASS

Big Heat for a Small Footprint, presented by Laura Elfline | Friday, November 30, 10:00 AM to 11:30 AM

A discussion of innovative heating solutions for small and multi-use spaces such as backyard cottages, ADUs, and compact townhomes. Hybrid heating solutions that are a super comfortable and healthy while saving space, are often also less expensive to install, and treading lightly on the environment.

High Performance Building Clinic – November 29 – 30, 9:30 AM to 4:30 PM

Representatives of the Northwest EcoBuilding Guild go start to finish on a low-carbon footprint building envelope that will last a century or more. This multi-day live building clinic, will educate attendees on the how-to details of high performance buildings. NWEBG Leaders, this clinic will consist of building a demo tiny house while showcasing carbon negative and innovative non-toxic materials. We will cover interior and exterior insulation, airtightness and waterproofing, heating and ventilation, as well as durable and sustainable finish options. The Guild empowers people through education to transform the built environment for long term sustainability.

Workshop: Big Heat for a Small Footprint

Workshop: Big Heat for a Small Footprint

Big Heat for A Small Footprint

Saturday, November 10, 2018 | 11:00 AM – 12:30 PM

at the Second Use SODO Store

Join us for a FREE WORKSHOP! This will be a discussion of innovative and efficient heating solutions for small and multi-use spaces that tread lightly on the planet. We will look at backyard cottages, ADUs, additions, and whole homes. We’ll also discuss hybrid heating solutions that are super comfortable and healthy, while also saving space, are less expensive to install, and have minimal impact on the environment.

Laura Elfline of Mighty Energy Solutions and Mighty House Construction will lend her expertise in both radiant heat solutions, and home remodeling and construction. So, bring your burning questions about heat!

This workshop is free, simply RSVP to: maryanne@seconduse.com to secure your spot!

NW Green Building Slam + Summit: October 26-27

NW Green Building Slam + Summit: October 26-27

Join us at this year’s NW Green Building Slam + Summit on October 26-27th! Mighty House is honored to be presenting on both days:

The Slam on Friday – One of the most fun and inspirational green building events of the year! Learn about 10 innovative, sustainable, high-performance “green” buildings that push the envelope in our built environment. Projects range from residential to multi-family to mixed use developments in the Seattle area.

The Summit on Saturday – A day of sharing, chatting, toasting and note-taking. An opportunity to step outside your daily routine, get inspired by our fantastic speakers, and connect with sustainable building professionals from the Pacific Northwest and beyond. We’re looking forward to learning from one another, sharing best practices, and re-energizing our vision to drive the green building movement forward.

October 26-27 | UW Kane Hall

Register here.

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DADU in evening with lightsTWO TWEENS, ONE HOME BUSINESS, AND A MODEST CRAFTSMAN DIVE DEEP GREEN, presented by Laura Elfline, Mighty House Construction + Roy McGarrah, Living Shelter Design

This family had two tweens that needed their own bedrooms, and a home-based furniture business involving a lot of bulky inventory. They desperately needed more space!  The team soon realized that a DADU would meet all their needs. This would allow the clients to reclaim a converted bedroom and give each tween their own space, while creating a multi-functional building they can utilize for decades to come.