Describes tests to investigate the sealing qualities of Kleeneze brushstrip (a fibrous draught-proofing strip) and the frictional forces exerted by it as the brushstrip compression is varied.

Reports on some current projects in the UK using a certain type of CO2-controlled ventilation system, the "Builiding Breathaliser". This system has been installed in lecture theatres at the University of Kent, BHS department stores and cinemas owned by Rank leisure.

Grab sampling of a tracer gas/air mixture in conjunction with the tracer gas decay technique is a convenient method for conducting a survey of air infiltration rates in homes. Examines such a method, using SF6 as the tracer gas and storing the concentration in evacuated glass tubes.

A wind-tunnel model study of the experimental building at Aylesbury, England has been conducted at scales of of 1:25, 1:50 and 1:100. Compares model results with those obtained in other wind-tunnel studies and with full-scale values obtained by the Building Research Establishment at Aylesbury.

Describes a comprehensive investigation undertaken to determine the wind pressures on surfaces of models of typical low-rise buildings. For many practical applications building surfaces like facade coverings or tiled roofs are permeable. For those coverings the pressure equilibration across thepermeable surface is important when determining the net windload. Gives a survey of the physical parameters influencing the windload of permeable surface coverings. Presents results of a continuing study of the wind load on permeable facade coverings.

Tests a large office building, consisting of several octagonal towers and other blocks in a boundary layer wind tunnel. Determines the highest suction pressures which are relevant for the fixing of the cladding. Uses a tracer gas method to determine recirculation problems of the ventilation system inlets and outlets resulting from the arrangement of octagonal towers of different heights. Wind velocities on the flat roof of some towers are studied by meansof an erosion technique using flour, checks the accuracy of the method using hot wire measurements.

Discusses MEPA (Microcomputer Energy Programs for Architects) which has been developed in Sweden to supply energy analysis information during the early stages of design of residential and small commercial buildings, and is used inSweden, Kuwait and the US. It is designed especially for architects using microcomputers.

Describes the Computerized Instrumental Residential Audit (CIRA), a collection of programs for energy analysis and energy auditing of residential buildings. Air infiltration is modelled using the LBL infiltration model based on effective leakage. For a given budget, CIRA can also develop an optimally sequenced list of retrofits with the highest combined savings. Energy calculations compare well with those of DOE-2.1 and with measured energy consumptions from a sample of monitored houses.

Describes a detailed simulation program for estimating heat loads and room air temperatures of a residential building. Sets out the algorithms and the example simulation of a house by the program. As room surface temperaures and natural ventilation are important factors in considering the thermal environment and the heat load of the room, they are treated more rigorously than in a previously developed program.