Insulation boards are rigid boards or sheets made of foamed polystyrene, polyurethane, polyisocyanurate, or gypsum. Their rigid, closed-cell structures provide better ... Expanded or extruded ...

There are three main types: polyiso, which has the highest R-value; extruded polystyrene ... The open-cell option has an R-value comparable to fiberglass, but closed-cell foam is denser, more ...

Officials announced early Thursday morning that Ronald Reagan Washington National Airport will be closed until at least ... The flight had 64 people on board, and the military helicopter, which ...

Ludwigshafen, Germany-based BASF SE will sell its Styrodur business and brand of extruded polystyrene ... Neopor is a graphite polystyrene (GPS) rigid foam insulation comprised of many small ...

The second occurred Nov. 1, 2023, stemming from her alleged social media disclosure of student information discussed in closed session. The Illinois Association of School Boards allows boards to ...

Ortega said the decision to fire Hagekhalil was made during a closed-session discussion. “With a more than 80% vote, the board took decisive steps to stabilize our organization and workforce ...

Though the county is in compliance with state standards on cell phone use, board member Tom Edwards said the board should revisit the conversation to potentially institute specific district standards.

Eight years after first proposed, the Jericho Board of Education on Jan. 23 unanimously approved a ban on cell phones in classrooms. The ban will allow cell phones to be used in classroom ...