D1 The checklist in Table D1 may be used when installing energy efficiency measures in an existing dwelling, following paragraphs 3.6 to 3.13.
D2 The checklist provides an aid to determining the ventilation provision in an existing dwelling. It may be used before energy efficiency measures are implemented to help establish compliance with the minimum standards of requirement F1(1) as described in paragraph 3.6. The relevant section of this checklist should be selected depending on the ventilation strategy selected. If the answer to any question is ‘No’, further ventilation provisions may need to be installed, as described in paragraphs 3.11 and 3.12.
NOTE: Although it may go beyond the standards of paragraph 3.6, following the checklist in Table D1 is considered to be an adequate means of demonstrating compliance with the minimum
standards of requirement F1(1) as described in paragraph 3.6.
Table D1 Checklist for ventilation provision in existing dwellings
