Building codes establish the minimum legal requirements for buildings. There are typically two types—prescriptive and performance.
Prescriptive codes tell a designer what must be done (such as requiring R-20 insulation in the walls). Performance codes simply provide a metric that must be met (such as total energy use relative to a baseline), allowing the project to meet that benchmark in a variety of ways.
Code requirements differ from locale to locale, so here we cover news related to sustainability or energy use in building codes, and ways in which innovative green technologies are limited by code requirements.
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Resilience is finding its place in city zoning and building codes. Here are some ideas to bring to your local government.
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Jump straight to the essentials with these short explanations of green building concepts.
If properly stored and separated from potable water, graywater collected from sinks, showers, and clothes washers can be used to irrigate landscaping.
Unbiased information from our product experts helps you separate green from greenwash.
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In The News
We break news down to the essentials and provide expert analysis.
News BriefDesigned to layer on top of ASHRAE 90.1 and IECC, these provisions transition buildings away from onsite fossil fuel combustion.
California code will virtually require electric heat pumps for most new buildings, deterring new gas line hookups.
With the new Massachusetts carbon law, natural gas bans are not on the table, but other aspects of building electrification are addressed, along with environmental justice reforms.
Although government officials ultimately implement the energy code, the ICC is blocking them from voting on it.
Thought-provoking opinions from the most trusted minds in sustainability.
The foam insulation industry's united stand against code changes could backfire in the marketplace.
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