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

Title: Residential Slab Component Calculations

Abstract

Modern residential building energy codes provide a component tradeoff mechanism by which builders can trade reductions in the efficiency of some building components in trade for corresponding improvement in other components. One common tradeoff approach is based on maintaining a building "UA value," which represents the building envelope's overall thermal conductance. The building UA is the sum of individual component UA values, each of which is calculated as the product of the component's U-factor and area. Current codes, however, provide little guidance on including slab-on-grade components in the overall UA calculation. This brief provides information on calculating effective slab UA values and provides recommended text for building codes.

Authors:
 [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1488936
Report Number(s):
PNNL-28355
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
29 ENERGY PLANNING, POLICY, AND ECONOMY; residential building codes; slab edge insulation

Citation Formats

Taylor, Zachary T. Residential Slab Component Calculations. United States: N. p., 2018. Web. doi:10.2172/1488936.
Taylor, Zachary T. Residential Slab Component Calculations. United States. https://doi.org/10.2172/1488936
Taylor, Zachary T. 2018. "Residential Slab Component Calculations". United States. https://doi.org/10.2172/1488936. https://www.osti.gov/servlets/purl/1488936.
@article{osti_1488936,
title = {Residential Slab Component Calculations},
author = {Taylor, Zachary T.},
abstractNote = {Modern residential building energy codes provide a component tradeoff mechanism by which builders can trade reductions in the efficiency of some building components in trade for corresponding improvement in other components. One common tradeoff approach is based on maintaining a building "UA value," which represents the building envelope's overall thermal conductance. The building UA is the sum of individual component UA values, each of which is calculated as the product of the component's U-factor and area. Current codes, however, provide little guidance on including slab-on-grade components in the overall UA calculation. This brief provides information on calculating effective slab UA values and provides recommended text for building codes.},
doi = {10.2172/1488936},
url = {https://www.osti.gov/biblio/1488936}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {12}
}