These ASTM requirements have been in the code for a long time, but some may be unfamiliar with the requirements of the products used as a WRB. R703.2 Water-resistive barrier This is the code language covering WRBs. The sections in red are the changes or additions from the 2021 IRC.
The International Residential Code (IRC) spells out what is required for HVAC design in homes. Image Credit: International Code Council Building codes, especially those related to energy efficiency, have improved a lot over the years. With building enclosures, this has made a big difference.
In this post, the first in a three-part series, I will talk about building code requirements and building science principles pertaining to continuous insulation.
The code requirements for blower door testing are found in the International Residential Code (IRC), Chapter 11, Energy Efficiency. In the 2021 IRC, the codes discussing testing are found at […]
I am trying to find information in the 2015 building code that specifies the rules for utility/mechanical rooms. I am specifically looking for info on: 1. Type and thickness of drywall 2. Door ventilation requirements for electric hot water heater (if any) 3.
This comes up quite frequently and I thought it might be useful to lay out what is actually required by the code. My description relies on the BC Building Code, but I am fairly confident it applies to all provinces that have based their codes on the NBC. The code requires all building assemblies to include an air barrier and a vapour barrier. The air barrier can consist of a variety of sheet ...
The complete source for building, designing, and remodeling green homes Musings of an Energy Nerd Building Codes Update Vapor Retarder Requirements The code is more complicated than ever By Martin Holladay | December 10, 2021
After each code adoption, the Department of Energy releases a determination as to whether updated editions of the IECC would improve energy efficiency in residential buildings. The determination is a combination of qualitative and quantitative components to identify changes that have a direct impact on residential energy efficiency.
A "green light" moisture meter reading in the pressure-treated sill because of something this building assembly has. Image Credit: Peter Yost Code requirements for wood-concrete contact treat the symptoms of rot, not the cause Last week we talked about moisture meters, and I asked readers why the wood in the picture was wet.
