Call number:
ZSP-201-79/17
In:
CRREL Report, 79-17
Description / Table of Contents:
Six test roofs of two different slopes — 16.3° and 39.8°, and three different roof coverings — asphalt shingles, cedar shingles, and corrugated aluminum sheeting, were constructed at USACRREL, Hanover, New Hampshire, and were instrumented with thermocouples, heat flow meters, and calibrated gutters. Measurements were recorded for the winters of 1971-72 and 1972-73. The degree of icing and the chronological changes in the snow cover were recorded on 35-mm Kodachrome slides. It was found that eave icing is a sensitive function of the slope, roof covering composition, and solar radiation. The effects of wind were not investigated; the data were screened to remove all information corresponding to windspeeds over 8 km/h. In order of increasing tendency to form ice dams on the eaves, the roofs were high-slope asphalt, high-slope cedar, high-slope aluminum, low-slope asphalt, low-slope cedar, and low-
slope aluminum.
Type of Medium:
Series available for loan
Pages:
vi, 40 Seiten
,
Illustrationen
Series Statement:
CRREL Report 79-17
URL:
https://cdm16021.contentdm.oclc.org/digital/collection/p266001coll1/id/5287/rec/1
URL:
https://hdl.handle.net/11681/9047
Language:
English
Note:
CONTENTS
Abstract
Preface
Summary
Introduction
Experimental procedure
Description of roofs
Meteorological data
Procedure
Analysis
General
Temperature profiles
Temperature rankings
Heat flow
Snow depths and meltwater volumes
Degree of icing
Results and conclusions
General
Temperature profiles of the roofs
Comparative temperatures of roofs by section — rankings
Heat flow and accumulation
Snow depth, coverage, and meltwater
Degree of icing
Discussion of the icing problem
Literature cited
Location:
AWI Archive
Branch Library:
AWI Library
Permalink
