PU -polyurethane spray foam
polyurethane Spray foam (PSF) is an insulation that also functions as an air barrier and depending on type, as a bulk water barrier and moisture vapor retarder. polyurethane Spray foam is made by reacting MDI (A-side or iso) with a ploy blend (B-side or resin). The two liquid components are joined under pressure in a spray nozzle where they are applied directly onto wall, roof or building assembly. Once the reacting liquid hits a surface, it expands 30 to 120X and solidifies into a foam matrix. SPF is typically applied by certified professionals. polyurethane Spray foam seals and protects the building from infiltration of hot air, cold air, moisture and sound. Unicorn chemical is an SPF ideal insulation product for residential, commercial, institutional, military and industrial buildings. Utility cost savings of 30 to 50 percent can be realized with SPF insulation.we are dealing with polyurethane Spray foam insulation in pakistan.
TYPES OF SPF
- Unicorn chemical is used SPF Type Open cell SPF (1/2lb./ft.3 density) has an R-value of 3.7 per inch. It is an effective that is typically installed in wall cavities, attics and crawl spaces. It acts as both an air barrier and noise absorber. Open cell SPF is softer and more flexible than rigid closed cell foams. In general, it is best suited for mixed or warm climates. It can be used in colder climates, when installed in combination with a vapor retarder.we are dealing with polyurethane Spray foam insulation in pakistan.
- Unicorn chemical is used SPF Type Closed cell SPF (2-3lb./ft.3 density) has a higher R-value of over 6 per inch. It is an excellent air barrier, bulk water barrier and moisture vapor retarder. It provides structural enhancements to buildings, and is effective in all climates. It is typically installed in wall cavities, attics, basements, crawl spaces or on a building’s exterior wall we are dealing with pu polyurethane Spray foam insulation in pakistan.
How does SPF work?
Unicorn chemical Contractors combine two liquids to initiate a chemical reaction that creates foam. These liquids arrive at the job site in separate containers and are typically referred to as the “A” side and “B” side. Just like sodium and chlorine compounds combine to form a new substance – table salt – the “A” side and “B” side ingredients mix together to form a third, completely different material.we are dealing with polyurethane Spray foam insulation in pakistan.
Application of SPF insulation to the underside of the roof
The application of SPF insulation to the underside of the roof deck minimizes the potential for condensation. Unicorn chemical SPF insulation develops a thermal and moisture gradient that avoids the development of dew-point conditions in the attic. Because of this, moisture won’t condense or accumulate and, therefore, does not need to be vented to the exterior.we are dealing with polyurethane Spray foam insulation in pakistan.we are dealing with pu polyurethane Spray foam insulation in pakistan.
Pros Spray Polyurethane Foam (SPF) Roofing Systems
Unicorn chemical SPF roofs are installed by spraying a liquid on the existing roof and allowing it to expand into a foam. This process means that the foam can conform to all roof shapes and types, even irregularly shaped roofs. After cleaning the existing roof, the SPF roof can be applied directly over asphalt, shingles, concrete, metal and wood. SPF roofing delivers thermal, air, and moisture barriers to provide the highest R-value per inch, which means the material provides better insulation for the building. PF roof is installed, it requires minimal preventative maintenance and repair. If properly maintained, your SPF roofing. Seams and penetrations are the primary sources of leaks in roof systems, SPF eliminates this vulnerability. Since the SPF mixture is applied as a liquid, it can fill gaps, seams, and cracks in the existing roof and substrate.we are dealing with pu polyurethane Spray foam insulation in pakistan.
Cons Spray Polyurethane Foam (SPF) Roofing Systems
SPF can only be sprayed during specific weather conditions. Installation of a Unicorn chemical SPF roofing system cannot be performed when there is ice, frost, surface moisture, or visible dampness on the existing roof. SPF roof is installed by a spray application, there is a risk of the wind carrying overspray onto surrounding cars and other surfaces. we are dealing with pu polyurethane Spray foam insulation in pakistan.SPF roofing systems should be inspected twice a year whether there is known damage or not. And especially after weather events that could cause damage: such as hail storms, tornados, and hurricanes. Small cracks, gouges, or punctures can be repaired with an elastomeric sealant compatible with the SPF system.
Spray Polyurethane Foam (SPF) Insulation and How to Use it More Safely
Unicorn chemical SPF is a highly-effective and widely-used insulation and air sealant. However, exposures to SPF’s key ingredient, isocyanines and other SPF chemicals in vapors, aerosols, and dust created during and after installation, can cause:
- Lung damage
- Other respiratory and breathing problems
- Skin and eye irritation.
- we are dealing with pu polyurethane Spray foam insulation in pakistan.