Sustainability At Heartwood

We hear “sustainability” a lot these days and we want you to know exactly what it means to us, and why this matters for you!

THE BUILDING

Heartwood is at the heart of Seattle’s affordable housing initiatives. This Community Roots Housing project is the first tall wood building permitted by Seattle and received a Wood Innovation grant from the U.S. Forest Service.

LOCALLY SOURCED

Timberlab worked with the project team to ensure a regional focus on timber procurement. All of Heartwood's components were sourced within a 400-mile radius.

ECONOMY BOOST

Promoting mass timber fosters job growth, sustainable manufacturing, green construction, and diversified forest sectors.

SUSTAINABLE MATERIALS

CLT material could lower the carbon emission of large buildings by roughly 40% over traditional materials.

STRONG FOUNDATION

CLT has a much higher strength to weight ratio than concrete or steel.

THE BENEFITS

Why does it matter? Heartwood’s sustainable focus addresses pressing environmental issues, improves energy efficiency, and enhances the well-being of our residents.

WATER CONSERVATION

In unit washers use 3 times more water than shared facilities, our community laundry space reduces overall water usage by almost 200 gallons per apartment per week.

CLEANER AIR

Energy recovery ventilator (ERV) efficiently manages ventilation in your apartment by recovering heat and moisture from exhaust air, improving indoor air quality, and saving on energy costs. (select apartments only)

REDUCED CARBON FOOTPRINT

Embodied carbon is reduced through local sourcing of material and through the usage of CLT rather than concrete from which production causes more CO2.

ENERGY EFFICIENT

Typical energy use is 5 times higher with in unit dryers, shared laundry space brings your energy bill down each month.
EXPLORE OUR AMENITIES

WHAT IS CLT?

CLT (Cross-laminated Timber) is a type of engineered wood panel that can be used in construction to replace concrete and steel. CLT is lightweight, strong, and has good acoustic, fire, seismic, and thermal performance. It’s also easy to install and generates almost no waste. Advancing the use of mass timber supports new jobs and long-term investments in value-added manufacturing, green building, and forest sector diversification. Plus, its beautiful to look at and creates a unique feel inside each home.

How We're Built

Mass timber was selected for the opportunity it afforded for an additional floor of units (compared to the more conventional 5-over-2 approach) The glulam post-and-beam frame is laid out perpendicular to the corridor, aligning with demising walls between units. This layout facilitates the horizontal distribution of services throughout the building and allows for strategic encapsulation of some timber elements as a cost-saving strategy. To deliver this fully exposed timber structure, Timberlab worked with the design team to develop a wood-to-wood bearing connection that eliminates steel hardware, saving both time and money.