Institute for Research in Construction
National Research Council of Canada
Those of us in the US owe the Canadians a real thank you for establishing and operating the only significant independent research laboratory in architectural acoustics in North America. Much of what we know about architectural acoustics especially as it relates to residential and commercial construction has originated in their laboratories. The following are links to some important portions of their website.
Main Site - Institute for Research in Construction
Introduction to Building Acoustics
Sound Transmission Through Gypsum Board Walls
Gypsum Board Walls - Sound Transmission Loss Data 369 pages
Sound Transmission Through Concrete Block Walls
Sound Transmission Through Concrete Block Walls
Sound Transmission Data - Concrete Block with Furred Gypsum
Effect of Electrical Outlet Boxes on Sound Isolation of Gypsum Board Walls
Controlling Transmission of Airborne Sound through Floors
Floor-Ceilings - Detailed Data for Sound Transmission and Impact Isolation
Factors Affecting Sound Transmission Loss
Controlling Transmission of Impact Sound Through Floors
Controlling Flanking at the Wall-Floor Junction in Wood Frame Construction
Sound Isolation and Fire Resistance of Assemblies with Fire Stops
Fire stops in walls can provide both fire resistance and sound isolation
How Floor Wall Details affect Sound Transmission in Multi-Family Dwellings
Avoiding Flanking Noise Transmission
Office Partitions: Acoustical Requirements for Design and Construction
Acoustical Design Guide for Open Plan Offices
Acoustical Effects of Screens in Landscaped Offices
Sound Transmission Through Windows
Thickness of Air Space in Double Glazing
Noise from Air Conditioners
Speech and Noise Levels Associated with Meeting Rooms
Measures for Assessing Architectural Speech Security
Papers of the late Tom Northwood
Noise Transmission in Buildings 1960
Sound Insulation in Office Buildings 1964
Blasting and Building Damage 1965