... Copy, © BSI BS 5588- 4: 1978 Figure — Steps in obtaining the equivalent resistance of a combination of series and parallel paths of air leakage 12 © BSI 01-1999 BS 5588- 4: 1978 For combinations of series ... and construction of buildings BS 5588- 1, Residential buildings BS 5588- 1.1, Code of practice for single-family dwelling houses3) BS 5588- 1.2, Code of practice for flats and maisonettes4) BS 5588- 2, ... Copy, © BSI Foreword This new code of practice was prepared under the direction of the Fire Standards Committee In addition to the existing BS 5588- 1.1, BS 5588- 2, BS 5588- 3 and BS 5588- 5, other...