Discusses the natural ventilation of the Paintings Room of Altamira Cave, in Spain. The radon-222 concentration was measured by scintillation cells of capacity 500 cm3. From the mean monthly Radon-222 concentration the natural ventilation was calculated using Wilkening's method. Compares the variations in ventilation rate (monthly) with the temperature differences between the Paintings Room and the Hall Chamber. Natural ventilation is the major factor affecting changes in the carbon dioxide concentration.

This note arises from work to identify the effectiveness and cost of remedial treatments for condensation and mould problems in housing. Although the four factors - moisture generation, ventilation, insulation and heating - which control the likelihood of mould growths have long been established there hasnot been a straightforward way of showing their interrelationship, particularly where energy costs are important.

This paper describes part of a research programme on energy consumption in the Polish building sector. The work, carried out from 1980 to 1985, aimed at developing methods for measuring air flows and their influence on heat consumption in typic

Factsheet includes useful chart on glazing materials. Gives basic advice on limiting heat loss from doors and windows, together with recommendations for materials and installation, Also deals with the new hi tech windows using heat reflective film, and problems of condens- ation.

Investing in insulation is a good way to reduce energy consumption in the home. The homeowner must determine where adding insulation will be most cost effective. Attics are usually the place to start, followed by floors and walls. Since there is a wide variety of material on the market, thedo-it-yourselfer must choose carefully and install them with proper regard for ventilation and vapour barriers. Even if the work is performed by a contractor, the informed homeowner will benefit by his knowledge of materials and procedures.

Factsheet focuses on some of the simplest and lowest cost measures available to both homeowners and renters for reducing heat loss. Gives basic information on methods and types of caulking and weatherstripping, including installation.

Discusses the interrelationship of home ventilation rates, sources of air contaminants, and the relative quality of the indoor air environment, including: what is an unsafe air quality level? The problem in perspective, common household pollutants, home ventilation, identification and testing.

Aims to inform on the basic principles of passive solar design and describes some passive design options. Sections include the basics of passive solar (collection, storage), and design options for the homeowner (direct gain, indirect gain, isolated gain, thermosiphon air panels, double wall envelope).

Factsheet gives information on the design of the envelope house, criticism of the envelope design, an explanation of envelope performance, special construction details, new ideas for the envelope house and economics of the envelope.

Factsheet discusses types of air-to-air heat exchangers, their advantages and disadvantages, installation details, and how to select an air-to-air heat exchanger that is appropriate. Sections include how an air-to-air heat exchanger works, materials used for partitions, installation, condensation and frost removal, controls, maintenance, selecting a heat exchanger, and how much energy will be saved.