Like the foam board insulation requires foam core boards,Basic Constituents Of Spray Foam Insulation Articles the spray foam insulation requires spray foam. The main difference between the spray foam and foam board insulation is in the method of applying the insulation.
Below is a short explanation of the basic constituents of a foam spray insulation machine.

The proportioner: is the heart of the machine. It is that element which generates the foam by proportioning the constituents and Basotech pushing them. The most suitable and multipurpose proportioner would be an electric proportioner, but you need to make sure that it comprises intuitive controls and balanced pressure valves.

The spray foam hoses: these are basic hoses, which are mainly used for transporting the foam from the proportioner to the spray gun. The hoses are available in different colors, lengths and diameters. It’s usually a good idea to employ hoses that are corrosion protected and rust proof, to prevent corrosion or rust formation.

The spray foam gun: If the proportioner is the heart of the spray foam machine, then this component constitutes its hands. Inside the gun, the two constituents of the foam are mixed and released at definite pressures towards the surface which is to be insulated. The instant at which the two constituents come into contact they react with each other, so this process must be carried out with utmost care, to prevent clogging. Hence, before purchasing the gun, you should try to find how simply it can be cleaned.
The given elements above will enable you to successfully insulate your house. Foam insulation method is also an insect resistant and fire proof and does not settle or fall back. Not only this, it is also moisture resistant which does not allow the growth of molds. Spray foam insulation can be employed rather than the foam board insulation, but you should first consider all the merits and demerits of the two insulation methods.

Spray foam insulation can be broadly classified into two major types of spray foam insulation – open cell and closed cell. In the open cell type, there is some room for air movement and is used often in building ceilings, where there must be some ventilation necessarily. Whereas, in the closed cell type, there is absolutely no room for any air movement through it and is employed on side walls. It also has the highest R-value.