Green Builders


The trend toward “Green”, sustainable, environmentally responsible construction is here to stay. Pick up any newspaper or magazine and you’ll see that the trend is exploding, both in residential as well as commercial construction. In fact, many local, state and federal agencies are now adopting Green building standards as a way to preserve our natural resources and reduce our dependency on fossil fuels.

Public and private building owners are demanding high-performance, earth-friendly construction methods and materials. It has been documented that the ongoing energy use of a building is the single greatest environmental impact of that building and continues to impact the environment for decades, even centuries.

As a member of both the United States Green Building Council-USGBC, and the Green Building Initiative, Greenblock is committed to providing products and services to the green building community that will result in conservation of our natural resources. Greenblock insulated concrete forms can have a significant impact on energy use as well as create a structure that is safe, strong and sustainable for centuries to come.
What is LEED?

Leadership in Energy and Environmental Design (LEED) is a rating system devised by the United States Green Building Council (USGBC) to evaluate the environmental performance of a building and encourage market transformation towards sustainable design. The system is credit-based, allowing projects to earn points for environmentally friendly actions taken during construction and use of a building. LEED was launched in an effort to develop a “consensus-based, market-driven rating system to accelerate the development and implementation of green building practices.” The program is not rigidly structured; not every project must meet identical requirements to qualify.
LEED was created to:

define “green building” by establishing a common standard of measurement
promote integrated, whole-building design practices
recognize environmental leadership in the building industry
stimulate green competition
raise consumer awareness of green building benefits
transform the building market

LEED provides a complete framework for assessing building performance and meeting sustainability goals. Based on well-founded scientific standards, LEED emphasizes state of the art strategies for sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality. LEED recognizes achievements and promotes expertise in green building through a comprehensive system offering project certification, professional accreditation, training and practical resources.*

*Excerpt from U.S. Green Building Council’s website

Detailed information on the LEED program and project certification process is available from USGBC

Using Greenblock Insulated Concrete Forms for the exterior walls of your home or building can be a major contributor toward LEED certification.

The following Technical Bulletin provides a summary of the latest version of the LEED Rating System for “New Construction and Major Renovation”.

GREENBLOCK Potential LEED Contribution -LEED for New Construction & Major Renovations v3 (LEED-NC v3) Technical Bulletin I “LEED Contribution”

The United States Green Building Council (USGBC) has recently released the latest version of the Leadership in Energy and Environmental Design (LEED) Rating System for New Construction & Major Renovations – LEED-NC v3. Beginning in June 2009 all new LEED projects in the United States are required to comply to the latest LEED rating systems.

Below is a summary of GREENBLOCK ICFs potential contribution to LEED-NC v3 projects. The use of Greenblock ICFs on a project can potentially contribute up to 30* of the 40 points required to achieve LEED certification.

For more information on the LEED Rating Systems go to our web site at, or

Site Development: Protect or Restore Habitat N/A

Although these points may not apply to GREENBLOCK ICFs, the wall bracing used is one of a combination of actions that, together, can result in proper protection or restoration of natural areas around the job site.
GREENBLOCK is typically placed within the building perimeter. This type of assembly avoids disturbance to existing natural areas and keeps construction activity close to the building perimeter.

Optimize Energy Performance Up to 19

The combination of EPS foam insulation and the thermal mass properties of the concrete provide:
High thermal resistance for a GREENBLOCK wall system – R18-24 (prescriptive) depending on product type. (35+ effective R value – performance).
Reduction in the peak heating and cooling loads on the building.
Air tight structure which reduces air leakage and energy use.

Building Reuse: Maintain 55% to 95% of Existing Walls, Floors & Roofs Up to 3 Can apply to existing GREENBLOCK walls that make up a large part of the existing structure or building shell. Concrete walls generally have a long life span, and tend to stay in place during renovations.
Building Reuse: Maintain 50% of Interior Non-structural Elements 1 Can apply to interior non-load bearing GREENBLOCK walls.
Construction Waste Management: Divert 50% to 75% from Disposal Up to 2 GREENBLOCK ICFs produce minimal on-site construction waste. Any on-site waste can be fully recycled at one of many EPS recycling facilities throughout North America.
Recycled Content: 10% to 20% (post-consumer + 1/2 pre-consumer) Up to 2 GREENBLOCK web-ties are made of 100% recycled polypropylene plastic.
Regional Materials: 10% to 20% Extracted, Processed & Manufactured Regionally Up to 2 GREENBLOCK currently has 7 manufacturing facilities throughout North America. The concrete is supplied through local suppliers. Up to 2 pts can be awarded.
Minimum Indoor Air Quality Performance 1 ICFs help create air tight structures which make air flow and ventilation easier to control and monitor. The reduction in airborne particles and dust provides a healthier, more comfortable environment for occupants, as well as a reduction in HVAC capacity.
Increased Ventilation
Thermal Comfort: Design
Thermal Comfort: Verification
*The total LEED point contribution from the use of GREENBLOCK ICFs is a best estimate based on available information and test data. The actual LEED point contribution may change based on project specifics, and should be determined by a LEED Accredited Professional for each project seeking LEED accreditation.