Photo Source: Summerhill

Photo Source: Summerhill

9.36.2.10. (7) Penetrations by electrical wiring, outlets, switches or recessed light fixtures through the plane of airtightness shall be constructed airtight

a) where the component is designed to provide a seal against air leakage, by sealing the component to the air barrier material (see Appendix A), or

b) where the component is not designed to provide a seal against air leakage, by covering the component with an air barrier material and sealing it to the adjacent air barrier material.

A-9.36.2.10.(7)(a) Components Designed to Provide a Seal at Penetrations . An example of the component referred to in Clause 9.36.2.10.(7)(a) is a plastic surround for electrical outlet boxes that has a flange to which sealant can be applied or that has an integrated seal.