noun
Meaning 1
An insulation board used over closed cell plastic insulation (e.g., polyisocyanurate) to prevent blistering when used in conjunction with hot bituminous membranes.
Definition source: English Wiktionary via Wiktextract
Topics: business, construction, manufacturing, roofing
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided