Ceiling Insulation Research Articles

Analysis of energy conservation standards for Singapore office buildings

The authors have evaluated existing energy conservation standards for office buildings in Singapore and recommend changes in the present lighting and OTTV (overall thermal transfer value) standards. The analysis shows that significant energy savings can be effected by the use of daylighting and several other measures that reduce cooling loads. It was found that some other measures (e.g. ceiling and wall insulation and double-glazed windows) have little impact on energy use.

Obtaining the optimal fuel conserving investment mix: A linear programming approach

This paper addresses the economic efficiency of fuel consumption reducing investments in residential heating. A linear programming model selects the optimal investment mix which minimizes the cost of maintaining a base house at 20°C over 10, 20 and 50-year planning horizons. Investments in increased amounts of south glass and mass, increased levels of wall, ceiling, basement, floor joist and window header insulation, and reduced air changes per hour are considered. The programming solution from the 50-year model indicates the investment mix which minimizes the total lifetime cost of heating the house. The 10 and 20 year planning horizon models provide shadow prices which reveal the opportunity costs resulting from suboptimal planning horizons. The results obtained permit important energy policy implications to be drawn. The effects of length of planning horizons and increased fuel prices on policy choices are considered. Also, the impacts of variations in allowable insulation investment, tax credits and solar investment tax credits are examined.

Asbestos Control Program for Institutional Facilities

Asbestos‐containing materials have been used in 20%–50% of the institutions in this country for ceiling, boiler and pipe insulation, acoustical treatment, and fireproofing. Medical criteria indicates that there is no limiting dose relating relationship between asbestos exposures and the various cancers it may cause that are either fatal or difficult to treat. The Environmental Protection Agency estimates that between 100 and 6,800 people may be expected to die prematurely of cancers due to non‐peak asbestos exposure at the prevailing levels in schools. Total environmental health impacts may be considerably higher due to peak exposures created by maintenance, renovation, and other activities. The purpose of this treatise is to present state‐of‐the‐art asbestos environmental health auditing procedures, corrective action program design and implementation, and liability/risk control considerations to reduce the projected environmental health impacts. Special emphasis is placed on the use of decontamination ai...

Life-cycle costing for consumers of energy-conserving devices

We derive general relations for life-cycle costs and savings associated with energy-conserving devices for consumers. These are applied for parametric evaluation of the efficacy of retro-fitting ceiling insulation in San Diego County.