- Author
- Powell, F. J. | Robinson, H. E.
- Title
- Effect of Moisture on the Heat Transfer Performance of Insulated Flat-Roof Constructions. Building Science Series.
- Coporate
- National Bureau of Standards, Washington, DC
- Report
- NBS BSS 037, October 1971, 83 p.
- Distribution
- Available from National Technical Information Service
- Keywords
- roofs, thermal insulation; heat transfer; moisture; moisture regain; concrete slabs | concrete slabs
- Identifiers
- flat roofs
- Abstract
- A solution to the problem of unwanted moisture in the thermal insulation of flat roofs was found during a recently completed laboratory investigation of the effects of moisture on heat transfer through these constructions. The objective of the research was to ascertain how much the insulating performance of conventional constructions, having insulation over concrete decks, was affected by moisture. Also, the objective was to investigate properties of materials, their arrangement and dimensions which would yield a construction having an adequate degree of self-drying ability, combined with low winter moisture regain rate. (Author)