What type of insulation is referred to as "temp wrap"?

The term "temp wrap" generally refers to faced flexible fiberglass insulation. This type of insulation is designed to provide temporary thermal protection in various applications and is usually faced with a vapor retarder, which helps in controlling moisture and maintaining the efficiency of the insulation. The facing also contributes to the insulation's robustness and ability to withstand exposure to the elements for a limited time, making it suitable for temporary installations.

Faced flexible fiberglass insulation is particularly effective in situations where insulation needs to be installed rapidly, such as during construction or renovation projects, as it can be easily wrapped around ducts, pipes, and other valuable structures.

The other insulation types mentioned, such as unfaced fiberglass insulation and closed-cell foam insulation, serve different purposes and do not typically emphasize the 'temporary' aspect associated with the term "temp wrap." While fiberglass cloth insulation and other types may be useful in various contexts, they lack the specific features and benefits that faced flexible fiberglass insulation offers in temporary applications.