Part 14Thermally efficient window products

Part 14—Thermally efficient window products

10 Prescribed activity

(1) The prescribed activity is installing a product specified in subclause (2), where the product—

(a) is installed on one or more single glazed windows in an external wall; and

(b) is installed for a minimum glazed area of 5 m2; and

(c) in the case of a category 14A product, when installed, results in a still air gap being created between the single glazed window and the product; and

(d) in the case of a category 14B product, is installed in accordance with the specified installation requirements.

(a) a product listed on the ESC register as belonging to a product category whose category number is specified in column 1 of Table 14.1;

(b) an unlisted product that complies with the criteria specified in column 2 of an item in Table 14.1.

Table 14.1—Product categories

| 14A | A product that, when installed on a single glazed window, results in a still air gap being created between the single glazed window and the product and raises the thermal efficiency performance of the window. | | 14B | A product that raises the thermal efficiency performance of a window and meets the requirements of the Secretary's specifications for this item. |