Environmental Design

: Section 1: Environmental criteria for design covers the same basic topics of temperature, humidity, lighting and acoustics but each has been extensively revised. The notion of single 'comfort' temperature has been replaced by summertime and wintertime temperature ranges. New section added deal with indoor air quality, air filtration strategy and the electromagnetic and electrostatic environment. Section 2: External design data replaces the former section A2: Weather and solar data. Section 3: Thermal properties of building structures. This section is cited in Part L of the Building Regulations. It has been revised and expanded to include more detailed calculation procedures dealing with various types of window frames and glazing. Section 4: Air infiltration and natural ventilation. Section 5: Thermal response and plant sizing brings together subject areas from former separate guide sections A5, A8 and A9. Section 6: Internal heat gains replaces section A7 of the fifth edition. Section 7: Moisture transfer and condensation replaces section A10 from the fifth edition. Includes a flopy disc. Copyright © CIBSE. …