LEED v4

The Integrative Process in LEED V4

The Integrative Process in LEED V4

The Integrative Process, one of the new credits introduced in LEED V4, falls into a category all its own. Unlike many of the other credits that quantify characteristics of the building, the IP is a pre-design practice that serves as an opportunity to perform early intervention on the project’s sustainability goals. The goal of IP is to identify synergies across disciplines and building systems when there is still maximum opportunity to have an impact on design and before too many critical decisions have been finalized. The IP addresses sustainable design considerations that can have an early and lasting impact on energy consumption, water usage and site conditions: Energy Systems Required for all BD+C and ID+C projects, the Integrative Process includes the construction of a “simple box” energy model during schematic design. This model allows the design team to explore the energy impact of key parameters, including: Site conditions Massing and […]

Life-Cycle Assessment

Life-Cycle Assessment

Life-cycle assessment is a process or technique to evaluate the environmental impacts associated with a product over its entire life-span. In the case of a building, life-cycle assessment evaluates the impact of all building materials used in a building through all the stages of its life which include extraction of material, manufacture, transportation, use, and final disposal or end of life. Life–cycle assessment can be used to evaluate the overall environmental impact of the whole building or to quantify the impact of a single material in the building. LEED 2009 awarded points for building material reuse; however, LEED v4 awards points for whole building life-cycle assessment under the “Building Life-Cycle Impact Reduction” credit in the Material and Resources category. There are two variants under life-cycle assessment: Cradle-to-grave (open loop assessment): The cradle-to-grave life-cycle assessment approach includes assessment from the resource extraction phase to disposal phase Cradle-to-cradle (closed loop assessment): The […]

AIA COTE Sustainability Slam 2017

AIA COTE Sustainability Slam 2017

Mugdha Mokashi, one of ArchEcology’s in-house energy efficiency experts, recently presented at the AIA Sustainability Slam 2017 in Seattle. It was a great platform to interact with individuals working in the field of sustainable design. The presentations were interesting and provided information on various sustainability initiatives in Seattle such as Healthy Materials Collaborative or the work in the field of Measurement and Verification. Mugdha presented a comparison of three daylight simulation tools. The 7-minute brief presentation was intended to be a concise overview of the pros and cons of the three simulation tools. It provided a glimpse of the interface, the simulation process and the type of analyses and outputs provided by each tool. This comparison is helpful for design teams to decide which tool suits their needs for different design stages. Interested in having ArchEcology provide your office with a learning session on software tools available for sustainable design? Get in […]

The Three Types of EPDs

The Three Types of EPDs

This post is a follow up to our earlier post on Environmental Product Declarations. Three types of Environmental Product Declarations can contribute towards Option 1 of the Environmental Product Declarations credit. A product with any of the following three documents below will help a project team achieve the 20+ product threshold needed for credit achievement. Product-Specific Declaration Industry-Wide (Generic) EPD Product-Specific Type III EPD These three types of EPDs are meant to accommodate the various stages of EPD development throughout the different industries. Based on the stage of development, each type of EPD is valued as a quarter of a product, half of a product or one whole product in terms of how much each document contributes towards LEED compliance. All EPDs must be publicly available, however the materials an EPD does or does not reference will help determine what kind of EPD it is. Once the project has reached the […]

Environmental Product Declarations: Standards & Process

Environmental Product Declarations: Standards & Process

The transition to LEED v4 brought many changes to the material credits, including a brand-new credit all about Environmental Product Declarations (EPDs). An EPD is a verified and registered document that communicates the life-cycle assessment (LCA) of a product based on the product category rules (PCR). EPDs must also be consistent with the International Organization for Standardization (ISO) standards such as ISO 14025, 14040, 14044, EN 15804 or ISO 21930. These standards address how to perform a LCA, what data to include and how to compile that data into an EPD. Below is a breakdown of all the necessary components that contribute towards creating an EPD. EPD Standards EPD Process As mentioned above, the PCR and ISO Standards are the building blocks to creating an EPD. The first step is finding or developing a PCR, which involves the EPD Program Operator. Common Program Operators include UL Environment/UL Spot, ICC-ES, ASTM, […]