Construction Foam

Construction Foam Component Material from
Fabricated Packaging Materials

EPS Perimeter Insulation Board
Let us finish FPM Perimeter insulation with the bevel already in place. Stop dealing with the aggravation and dusty mess that comes with cutting foam in the field.
FPM Bevel board can match any compressive strength, R-value or thickness that extruded board can.

Stop burying dollars in the dirt

FPM bevel board perimeter insulation gives you more protection for a lot less money.

24" x 96" Perimeter insulation is available in any thickness or compressive strength,
with straight edges or a 45 degree bevel.
FPM does not add scrap or ‘regrind’ material to any of our foam. A standard practice within our industry is to add 10 to 40% regrind to EPS in applications where quality is not as critical. This practice makes it difficult to completely purge the manufacturing system of regrind when shifting to production of a higher quality product such as FPM Perimeter Insulation. At FPM this is never and issue because ‘regrind’ is never used in any of our processing.

All of the Perimeter Insulation board manufactured by FPM is cured in a special “drying room” at 140 degrees F. This process is essential in reducing the internal stresses within a block of EPS foam. If this step is not done correctly a 96” long piece of EIFS board can shrink by up to 2% or almost 2 full inches and still be within the range that is considered  acceptable and an  ‘industry standard’. Even though this 2% variation meets the requirements of most of the industry, it is not acceptable to FPM.

At FPM we take environmental concerns seriously. EPS foam is designed not to deteriorate when exposed to the elements. Because of the inherent durability of EPS foam, FPM is doing everything possible to make sure that none of our material has to wind up in a land fill. Most EPS manufacturers practice “Secondary Source Recycling”. Scrap material is ground into small pieces and molded back into the block for certain applications. The downside to this practice is that EPS grind can only be recycled 3 to 5 times before it must be disposed of in some other manner. FPM uses “Primary Source Recycling” of all scrap material. All scrap is ‘densified’ or compressed into a log 30 times more dense than the original material. this densified log is then sent to a reprocesser where it is converted back into raw material from which a variety of packaging products are manufactured. The advantage to “Primary Source Recycling” is that there is no limit to the number of times the material can be reprocessed.
Perimeter Insulation Board
Expanded vs. Extruded (Blue or Pink)
board icon
There are many significant reasons why EPS is not only a more cost effective choice for perimeter insulation, but also offers protection in areas that Extruded Board does not. Here are just a few:

The cost per R-Value of insulation is much less with EPS. Unlike extruded board R-Value of Expanded Styrene (EPS) does not change over time and is not effected by environmental conditions. When EPS is placed underground the exposure to water does not reduce the insulation value or compressive strength of the Insulation Board at all. When considering perimeter insulation always ask for “aged R-value”. This is the actual R-value of the product over a period of time. With EPS this does not change. With Extruded board it does.

Water Protection
Extruded board is advertised as having a “moisture barrier” because of the ‘skin’ on its surface. Although this is true for each individual piece, unless every joint is sealed with a watertight seal and all edges of the wall are sealed tightly, ground water will find its way behind the Extruded board. With EPS this trapped moisture can eventually evaporate through the board. Because of the ‘skin’ on the Extruded board, the water remains trapped against the foundation and allows mold growth as well as significant frost heave during cold conditions. Unless every square inch of the wall is isolated from water penetration none of the wall is protected.

EPS will not let water pass, but it is not a moisture barrier. This means that water will not penetrate the board, any more than your morning coffee will penetrate the EPS foam cup, but trapped moisture will evaporate through the board in the form of vapor.

Physical Protection
Extruded Board advertises a compressive strength of 30 to 40 psi. EPS can also be manufactured to meet the same compressive rating but this does not necessarily relate directly to protection. One Pound per cubic foot density EPS has a compressive strength of over 1,500 pounds per square foot, more than enough for even severe soil conditions and is much more cost effective than higher psi material.

Softer 1# density EPS actually absorbs force from rocks and other objects that come in contact with the masonry wall. By pressing into the face of the insulation board the force is absorbed and not transmitted to the wall. EPS is widely used for packaging because if its ability to absorb and dissipate shock forces.

Thermal Protection
EPS and Extruded board rated at R-10 will give you exactly the same amount of thermal protection. The big difference is in the cost. A 2” thick layer of Extruded material is much more expensive than a 2 ½” thick layer of EPS and the R-Value is the same.
wall of foam
EPS foam has extremely high compressive strength. Even though the material feels soft to the touch, 2.4 pound / cubic foot density EPS can support  over 5700 pounds. This makes EPS a superior light weight fill for use beneath roadways and runways.
Environmental Concern
Most manufacturers of EPS as well as many municipalities and private recycling facilities now offer locations where EPS can be taken to be recycled back into usable insulation. There are many more such locations for EPS than there are for Extruded material.
This is the fill beneath an entrance ramp on an interstate highway. The road bed was constructed on top of several feet of EPS foam to protect the highway from frequent earthquakes that occur in this area. This particular application used 1 1/2 pound density EPS and was designed to exceed the requirements of constant car and truck traffic.
Geofoam is an application for EPS that has been used around the world for more than 50 years. In the early 1960’s EPS was used as a lightweight fill beneath roadways and airport runways. The first use of EPS for this application took place in Scandinavia and Canada to protect permafrost areas from absorbing heat when they were covered with heat absorbing concrete and asphalt. It was soon discovered that the incredible compressive strength of EPS offered many advantages in addition to its thermal insulating qualities.

Another advantage to geofoam, over conventional earthen fills, is the fact that geofoam will not “settle” once it has been put in place and loaded. Conventional fills must allow months to completely settle after being put in place. Once geofoam is installed it can be covered immediately.

Even the lowest density EPS, 1 pound per cubic foot, has enough compressive strength that a 10foot x 10foot section of EPS can support over 72 tons of weight with a minimum of 10% deformation. This means busy roads, runways, and load bearing areas can be stabilized using EPS foam.
foam blocks
This is a section of interstate highway that has been built on top of several feet of EPS foam blocks. A 36” thick layer of top fill was placed above the foam and capped with a standard road bed.