skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Determination and Assessment of Optimum Internal Thermal Insulation for Masonry Walls in Historic Multifamily Buildings

Journal Article · · Journal of Architectural Engineering

A large portion of existing building stock is comprised of load-bearing masonry buildings, particularly in the Midwest and on the East Coast, though such buildings are distributed across the US. Most of them have uninsulated walls or suffer from insufficient thermal insulation materials. These buildings are inseparable parts of the cultural, social, and economic characteristics of their cities. Due to heritage and preservation concerns, zoning, and space restrictions, they cannot be retrofitted with exterior insulation. Interior insulation must therefore be considered as an alternative. Lack of insulation directly results in energy waste as well as heat loss and gain. Furthermore, it adversely affects heating, ventilation, and air conditioning (HVAC) loads, equipment sizing, indoor air quality, and thermal comfort for residents. The objective of this study is to simulate and evaluate the effects of various internal thermal insulation materials and strategies on mass masonry load-bearing walls in multifamily buildings with attention to various variables and parameters. It not only addresses the energy performance and cost savings associated with an interior insulation retrofit, but also outlines other variables and parameters that are factors in the selection of optimum insulation material, including installations costs, payback periods, useful internal space loss, and options for the depth of the interior insulation retrofit. In conclusion, the audience for this paper is diverse: homeowners, contractors and remodelers, architects and designers, engineers, housing and preservation authorities, and more can benefit from understanding the results outlined in this study.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1471946
Journal Information:
Journal of Architectural Engineering, Vol. 24, Issue 3; ISSN 1076-0431
Publisher:
American Society of Civil EngineersCopyright Statement
Country of Publication:
United States
Language:
English

References (6)

The influence on building thermal behavior of the insulation/masonry distribution in a three-layered construction journal January 1997
Optimizing insulation thickness and analysing environmental impacts of aerogel-based thermal superinsulation in buildings journal July 2014
The environmental impact of optimum insulation thickness for external walls of buildings journal November 2007
Optimization of insulation thickness for external walls using different energy-sources journal September 2006
Energy demand and indoor climate in a low energy building—changed control strategies and boundary conditions journal April 2006
Criterion to evaluate the “twofold benefit” of the renovation of buildings and their elements journal January 2004

Cited By (1)

Monitoring of Thermal and Moisture Processes in Various Types of External Historical Walls journal January 2020