An attached sunspace, also called a solar greenhouse, is a glazed room built against the south side of a house. During winter days it collects solar energy and passes that heat into the living space, and through the rest of the year it works as extra room, plant nursery, or both. The idea goes back […]
Caulk joint sealants are a small line item in a construction budget, yet they can decide how long a building envelope stays watertight. When a sealant bead fails, water finds the air barrier, insulation loses its rated performance, and occupants deal with drafts, dampness, and degraded indoor air. The difficulty is that no one can
Green building documentation has a reputation for being tedious, and for years the reputation was earned. Teams pursuing LEED entered project data by hand into the LEED Online website, credit by credit, upload by upload. In December 2010, at Greenbuild, the U.S. Green Building Council announced a different model. LEED Automation lets teams collect documentation
Teams chasing more than one green building label have long complained that the paperwork grows faster than the building does. Every certification program wants its own evidence, its own review, and its own fee. Duplicated reports add cost and slow projects down. In November 2022, at the Greenbuild conference in San Francisco, the U.S. Green
LEED certification has always rewarded projects that document good intentions, but the Performance section asks how buildings behave after occupancy. In the LEED 2012 drafts that later became LEED v4, the U.S. Green Building Council grouped metering and commissioning requirements into one Performance section mixing new credits with familiar ones from other parts of the
LEED for Existing Buildings: Operations and Maintenance, usually shortened to LEED-EBOM, does not freeze when a rating system version ships. USGBC issues addenda, formal corrections and clarifications to the credit language and the Reference Guide, on a rolling schedule. The first batch for LEED-EBOM 2009 appeared in November 2009, and releases have continued since. Teams
The U.S. Green Building Council issues LEED addenda four times a year, and the April 2023 batch, released on April 21, 2023, aimed squarely at residential projects. The one-liner from USGBC: no major changes. Even so, the release packed in new LEED Interpretations, updates to former rulings, several Reference Guide corrections, and pilot credit updates
Assembling a LEED certification submittal means collecting product declarations, action plans, and testing reports from dozens of manufacturers. Every one of those documents carries a date, and GBCI review teams check those dates against project timelines. A single missing fenestration specification can cost a building project its LEED v4.1 points before the review even begins,
The passive house standard began as a single experiment in Darmstadt, Germany, in 1991, and it has grown into a measurable target that builders on five continents plan around. A certified passive house typically uses 75 to 90 percent less energy for heating and cooling than a conventional building, and the passive house design principles
Green has become one of the most used words in construction marketing and one of the least specific. For one buyer it means recycled content, for another it means energy performance, and for a third it means a label with a leaf on it. The definition matters because the choices ride on it: material specifications,
