Questions and Answers

What is  EXY spray foam? 

Spray foam insulation (Spray Polyurethane Foam) or SPF is a mixture of two compounds (Resin & Isocyanate) that when mixed under temperature and pressure create a plastic. A blowing agent then creates bubbles in the mixture and expands the foam to 30 to 150 times its original volume. Depending on its cell structure we consider it either an open cell or closed cell foam. 


How long will the EXY foam last? 

Correctly installed and not altered the foam will last the life of your building. SPF adheres extremely well to virtually all substrates and is able to flex and move with your building. 


Where can spray foam insulation be used? 

Spray foam insulation has been used in almost any application that requires insulation from underground waterlines, hot tubs, foundations to metal roofs however, each foam has its applications and characteristics so although it is not recommended to use open cell foam on the foundation the closed cell foam is the preferred method. The experts at PSI Foam will work with you to determine the correct foam to use in each application. 


Can I spray the concrete walls in my basement? 

Yes in fact PSI Foam recommends that you spray the outside walls prior to back filling. Concrete holds on to the temperature for a long time by stopping the cold from reaching the concrete you create a more comfortable environment. If it's too late for the exterior spray foam is also the preferred method to insulate the crawlspace or basement as it will create a seamless thermal break. 


Hello, we are thinking about attic insulation and building an attic room in our old house. Can you tell me, what are the benefits of foam insulation versus mineral wool insulation? 

The indisputable advantage of foam insulation over the mineral or fiberglass insulation, is a seamless technology - a compact layer of thermal insulation. Even with a perfect installation of mats, or plates from MW thermal insulation leads to opening of joints, which cause thermal bridges and thus the place through which warm air escapes from the room, which is for obtain maximum thermal protection of the object completely undesirable. 


I am interested in using foam EXY as both waterproofing and thermal insulating layer for insulating the floor (concrete slab foundation). This year I start to build a house and considering the use of this material. Can you tell me what is the procedure work? 

Yes, foam insulation may also be used to insulate foundation walls and concrete floors, Interior - exterior etc. 5cm of  closed cell spray foam insulation stop moister and create vabor barrier. Foam may be applied to the earth prior to the first slab removing the need or cost of the secondary slab, however you would put drainage in the grade and after the gravel bed is in place lay a geo-textile to spray onto. Insulating foam can be applied to almost any dry surface such as sand, gravel, etc. In the case of wet surface is necessary to use plastic, which subsequently sprayed foam insulation. Insulating close cell spray foam, few seconds after application foam is completely dry, and ready for other applications such as the installation of concrete slabs etc.


I saw a competitive foam insulation company on TV and it occurred to me that there is a lot of over- spray foam waste. Does this mean that the customer is paying for that too? 

The customer should pay only for what they ordere. The amount of over-sprayed material which is cut off is not calculated in the price. Therefore, it is purely in our own interest to reduce the amount of over-sprayed material, but the technology of spray foam insulation does not allow to completely eliminate these over sprays. 


Hello, this summer I'm planning the reconstruction of pitched roof coverings on a house. On that occasion I'm considering the use of spray foam insulation. It is possible to spray foam from above - i.e. to uncover the roof and remove the original blown insulation and replace it with foam insulation. 

Yes, the installation of spray foam insulation can be also done from above. 


WHAT ARE THE ADVANTAGES OF USING SPRAY FOAM?

For homeowners and builders, spray foam insulation reduce construction time by simplifying the insulation process and offers the opportunity of lower heating and cooling costs. Spray foam create air barrier and will significantly reduce unwanted airborne noise from the outside resulting in a quieter interior living space Whit spray foam insulation, heating and cooling costs are reduced energy expense up to 60% and achieved a healthier indoor environment.


WHAT IS THE COMPOSITION OF SPRAY FOAM ?

Spray foam products do not contain environmentally harmful blowing agents like HFCs, HCFCs or HFAs, spray foam insulation are 100% water-blown making better environment..


DOES THE FOAM ENTRAP MOISTURE?

Open-cell spray foam insulation products are vapor permeable to allow water vapor molecules to flow through the foam. This means any moisture in the building's concrete or lumber can escape through the insulation as the building dries out, thus eliminating moisture that could cause rot or mold.

Closed-cell spray foam insulation reject bulk water and block transfer of moisture that may cause mold.


HOW IS SPRAY FOAM INSTALLED?

Spray foam insulation is installed by fully trained, licensed spray foam applicator, product could be spray on surface or can be inject in wall cavity.

Every project is done by a fully trained and licensed contractor.


IS SPRAY FOAM FORMALDEHYDE?

No. Spray foam does not contain formaldehyde.


WHAT R-VALUE DO I NEED?

This depends on your local code requirements and house or property location.


WHAT MAKES EXY SPRAY FOAM BETTER THAN TRADITIONAL TYPES OF INSULATION SUCH AS FIBERGLASS?

Spray foam insulates and air-seals to control unwanted air leakage – which traditional cellulose and fiberglass insulation can't do without the use of extra sealing materials. Traditional insulations leave gaps and seams spray foam perfectly air-seal all detail. Home will be healthier more energy efficient.


DO I NEED A VAPOR BARRIER?

This depends on your location and local building code requirements; it's affected by climate and the elements in the building envelope.


DO I NEED A THERMAL BARRIER?

In an occupied space, you need a thermal barrier or used medium density foam. Every project is different and need to be exam. If the space is unoccupied, you don't need a thermal barrier. 


An example of bad practice - wrong foam application 

Wrong applied and cheap foam disintegrates as a powder, not adhered and falls off. 

                                               

High quality foam + correct application                                Cheap-poor-foam + wrong applications 

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