This was a completely metal building. The roof was worn out, and the building was too hot inside, causing difficulty for workers inside. It was a warehouse that did not have air-conditioning.
Whiting Construction installed an SPF roof with elastomeric coating, bringing the inside to cooler temperatures immediately.
The photos show an in-progress addition to the warehouse. The red metal barrier shown was removed when the addition was completed, and both roofs had SPF installed.
The 1st two photos are BEFORE, and the 2nd two photos are AFTER.