Weathertightness and water penetration of buildings.

Includes papers on pitched roofs, flat roofs, wall construction, window and door joints, and weathertightness and water penetration of buildings. The focus is mainly on water penetration but air infiltration and ventilation are also discussed.

Air and water penetration through windows: a decade of testing.

This report analyses the data obtained from windows tested for the British manufacturing industry over the past ten years. The tests were conducted according to BS 4315: Part 1: 1968 and the results compared with the stated performance levels given in BS Draft for Development 4:1971. Possible trends in design and performance are indicated.

Weathertightness of windows.

This report analyses the data obtained from 134 windows tested for the British manufacturing industry since the inception of new test methods in 1983. The tests were conducted in accordance with BS 5368 and the results classified according to BS 6375: Part 1: 1983: Classification for weathertightness. Possible trends in design and limitations in the application of test results are indicated.

Air leakage of residential buildings. La permeabilite a l'air des batiments d'habitation.

The development and construction of portable test equipment to determine air leakage has made it possible to carry out measurements on a large number of dwellings built using different construction technologies. The recording and analysis of the data collected is presented in this paper. This makes it possible to propose a method for taking sealing defects into account in the calculation of air infiltration of dwellings.

Air infiltration in warehousing and light industrial buildings. A research report.

Addresses air leakage of warehouses and light industrial buildings including the significance of infiltration/exfiltration, air leakage sites, and measurement techniques. Concludes that 1, only limited leakage data are available for components of this building category 2, no model has been developed specifically for use in warehousing and light industrial buildings. However, one of the existing models for residential buildings could possibly be adapted.

Air leakage tests on polyethylene membrane installed in a wood frame wall.

This report presents the results of air leakage tests on polyethylene membranes installed in a frame wall. The results would be useful in evaluating the methods commonly used for installing such a component.

Preliminary survey of air tightness levels in New Zealand houses.

Air tightness results for 40 New Zealand timber frame houses of varying age and construction detail are given. The steady pressure method was used at 6-9 indoor-outdoor pressure differences in the range 10-150 Pa. The data is presented in four ways: 1. air changes per hour at 50 Pa, 2. the coefficient and exponent of a generalized leakage function, 3. the leakage rate per unit shell area at 50 Pa, and 4. the equivalent leakage area at 50 Pa. Houses in the 0-5 and 6-20 year age groups were not significantly different in terms of air tightness.

The value of pressure testing to establish the viability of retrofit procedures for a high rise building.

Presents the results of air leakage tests on the windows of the Arts Tower at Sheffield University. The results quoted show the ranges into which infiltration coefficients fall. Relates pay-back periods for weatherstripping to height above ground level. Tabulates mean values of leakage coefficient and flow exponent for defective and non-defective sealant and compares with values suggested in CIBS Guide.

Parameters affecting air leakage in East Tennessee homes.

A major pathway for loss of conditioned air in East Tennessee homes with externally located heating, ventilation, and air-conditioning (HVAC) systems is leakage in the ductwork. The average infiltration rate, as measured by Freon-12 trace

BTPI - a building thermal performance index.

In this paper, an empirical method is proposed which qualifies the thermal performance of buildings through the entire year. The thermal quality parameter (BTPI) is intended to be an instrument for the implementation of new energy regulations for buildings, especially for those that are located in areas with mild climate and no heating or air conditioning systems. Portuguese climatic zones are typified for summer and winter and predominance factors for seasonal loads are defined.