Fireproofing is a coating applied to steel structures to protect them from fire. The coating is designed to insulate the steel from heat, since heat weakens the steel and reduces the steel’s load-bearing abilities. Keep in mind, shop applied fireproofing is a specific type of fireproofing.
Intumescent fireproofing is fireproofing that swells and chars when exposed to flames. The purpose of these coatings is to allow architecturally exposed steel to be coated with a thin film product.
Absolutely. While many of the current fireproofing products are applied in the field and after erection, there are shop applied options.
Shop applied fireproofing applications are done in a more controlled environment. This can result in a better product. It also arrives to the jobsite coated and ready for erection. This can help shorten the critical path by not shutting down other trades during field applied fireproofing.
You should always rely on the manufacturer of the fireproofing, not the applicator, to decide if a product is suited. Only they can state their product meets the requirements of the specification.
Most manufacturers take on the responsibility of calculating intumescent thickness requirements based on the projects shapes and hourly rating needs.