Polyurethane Foam Insulation
Spray polyurethane foam (SPF) is a versatile energy sufficient material that is used to provide many solutions for the building and construction industry. SPF insulation combines high insulative value with other attributes that contribute to lower energy use and maintenance costs while increasing durability in buildings. SPF roofing systems provide building owners with attractive sustainable roofing options. The two most prominent benefits are waterproofing leak prevention and insulation value Many additional benefits also exist such as superior compressive strength, lightweight, self-flashing, durable and long lasting.
SPF is created by combining a polyol resin B-side containing additive such as blowing agents, catalysts, fire retardants and surfactants with a MDI isocyanate A side. The exothermic reaction produces a rigid foam plastic that has remarkable ealing, adhesive and insulation properties. Unlike most plastic that are polymerized in chemical factories and delivered to manufacturing plants in the form of pellets or powders and made in to build products, SPF is sold as liquid system that is reacted by the applicator in the field.
The foam adhesive is spray applied, which significantly reduces application fines and labor required for installation. The foam provides an added degree of insulation to the roof system and forms a strong adhesive bond, earning it excellent wind uplift ratings.
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in section "Plates made of polyurethane"