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There are many different ways to insulate a building, and there are dozens of insulation assemblies in existence. This particular article focuses on two insulation types that are popular in a variety of installations for the entire building envelope: EPS and XPS. The different classifications relate directly to physical characteristics of each type — most notably, the density, compressive resistance, and R-value.

The range in densities and compressive strengths allows for specific uses on different parts of a building. Polystyrene insulation is manufactured in a variety of board sizes — usually a minimum of 1-inch thick.

Tapered units are also manufactured for use in roofing assemblies where the insulation is used to create slope for positive drainage. One of the more common uses in roofing is the ballasted single-ply roof assembly, where a roof membrane is placed over the insulation and ballasted with rock, concrete pavers, or other material.

Polystyrene insulations can be used in asphalt built-up roofing systems; however, provisions must be made to protect the insulation from heat i. In addition, certain thermoplastic roof membranes require a separation layer between the layer of insulation and the membrane.

The IRMA concept is also utilized for insulating building walls, where polystyrene insulation is placed over a barrier membrane, with the siding or cladding system installed over the insulation layer. The use of EPS and XPS insulation in building construction offers great flexibility, compatibility, and thermal efficiency for use at all areas of a building envelope.

Picking between the two will depend on particular use; choosing the appropriate type is critical for proper insulation performance. Steven L. Want more insulation coverage? Sign up for our newsletters. Accoridng to the Department of the Interior, "Recycled plastic resin is used in some extruded and expanded polystyrene. Expanded polystyrene EPS can also be made out of recycled polystyrene. The simplest recycling involves crumbling the old EPS into small pieces and remolding them into usable shapes.

Any polystyrene can be recycled into building insulation, but because of fire retardants, old building insulation cannot usually be recycled into non-building applications.

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Preserve the integrity of your roofing, lighting, HVAC and plumbing with our preventative checkli Sponsored Links How can intelligent building design save you money? How much does unplanned downtime cost your business? Visit us online. Introducing Mr. Worldwide Global Button Latching push button with easy key reset, no lens replacement. Kick your energy efficiency plans into high gear by targeting HVAC and vertical transportation.

Can your building avoid unplanned downtime? Long-term, stable R-value. Can be placed below grade. Can be utilized for inverted assemblies over membrane. Previous Article. Email Share. Share Other.

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Related Articles. Exteriors Leaning Tower of San Francisco?Today, Geofoam has become so much more than that definition. Its uses have expanded due to its affordability, R-Value retention, light weight, and in most cases, the availability for expedited implementation. Expanded polystyrene EPS foam has been used as Geofoam in geotechnical applications for more than 30 years.

The extraordinary properties of EPS make it a great choice for use as a slope stabilizer, retaining wall backfill, road embankments, or pavement insulation, to name a few. Geofoam provides stability to unstable soil conditions.

Its lightweight characteristics make it a great solution for lightening the load of concrete in bridges, decks, green roofs, etc. The uses for EPS are expanding as it is providing manageable solutions for various types of projects. The ease of cutting and shaping EPS foam make it ideal for swimming pool construction. For roofs and rooftop gardens, it is lightweight and easily tapered to provide the necessary drainage.

Going together like building blocks, Geofoam also sets the stage for stadium seating. In passive building construction, to achieve the highest ratings, EPS is now being specified for the first layer of construction to attain an advanced building envelope.

These many unique attributes make Geofoam a multifunctional, optimal choice for a broad scope of projects:. Although not necessary, an insect repellent can be incorporated into the EPS foam if so specified. Generally, EPS blocks are requested in full billet sizes, i. ICA has long recognized the exceptional value of this multifunctional EPS foam product which has been used abroad for many years. We are excited about its increased awareness and growing applications.

Operating at the forefront, ICA worked closely with Dr. GRC continues to be the leader in developing the standards and performance verifications of Geofoam projects. If you are working on a geotechnical project and are concerned about UV Exposure, please read the following document provided by the EPS Industry Alliance:. The benefits of installing a green roof are both environmental and economical. Proper materials and installation are important.

The lightweight and versatile characteristics of Geofoam make it a popular choice for insulation in green roof systems.

Quality insulation is a critical layer in this sprouting business. Compressive Resistance Min. Company required. Email required. Phone Number required. Delivery Location: required.

Please describe your Geofoam project below. Select a page. What is Geofoam? Watergate Hotel Washington, D. Allegro Condominiums Washington, D.Designed for applications where high loads are expected, it provides excellent compressive strength under concrete slabs. The result is a warm, dry, healthy building that costs less to heat and cool. EXPOL ThermaSlab is also suitable for use in wall insulationretaining wall insulationcladding insulation and skillion roof insulation.

A building insulated with polystyrene under the slab is more comfortable and healthy for occupants. Thermal performance, water resistance and compressive strength will last for the life of the building.

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EXPOL supply bar chairs for steel mesh support. A lightweight product, it is easily moved around the site. To install EXPOL ThermaSlab, simply place sheets on top of polythene DPC and ensure sheets are not placed under any footings or thickenings for load-bearing walls unless specified by an engineer.

Sheets can be taped together, however, this is not a necessity.

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Once sheets are laid, place reinforcing mesh over the top using mesh chairs. See our Masterspec document for further information.

Design & Cost Advantages of EPS (Expanded Polystyrene) Rigid Insulation

The unique matrix structure of expanded polystyrene EPS creates block rigidity and compressive strength making it an excellent choice for use under concrete floors. An inert, rigid foam product, EPS holds its shape and does not deteriorate with age. EPS is often used for commercial applications such as structural base infill as well as road and bridge infrastructures.

EXPOL ThermaSlab is virtually unaffected by water, performing better than other foamed plastic products on the market. It is also available in other widths upon request.

Find your nearest stockist here. View Expol Distributors in a larger map. EXPOL underfloor 50 year warranty. Click to enlarge. Concrete floor insulation products. View our short video highlighting the main products used for insulating a concrete floor. Choose your thickness. Fast Facts. R-Value Calculator Sheet Calculator. Select Thickness Please select 10 20 30 40 50 60 70 80 90 Sheet Calculator Area to be insulated m 2 feet 2 Product Size Required Please select x x x x x x x x x Branz Testing Masterspec Other Click here.

General Enquiry Form. Company if applicable :. Contact Number:. Thank you for visiting Expol. To view the site please upgrade to the latest version of Internet Explorer, Chrome or Firefox.Polystyrene is a material with uniformly small closed cells and a smooth skin which make it suitable for a wide range of demanding insulating applications.

Extruded polystyrene is made by mixing polystyrene pellets with various ingredients to liquefy them. A blowing agent is then injected into the mixture to form gas bubbles. The foaming liquid is forced through the shaping die and, when cooled, it produces a closed cell foam that is rigid and water resistant. Expanded polystyrene is made from expandable polystyrene, which is a rigid cellular plastic containing an expansion agent.

The raw material is heated in special machines called pre-expanders with steam at temperatures of between C. During this process of pre-expansion the raw materials compact beads turn into cellular plastic beads with small closed cells that hold air in their interior. On cooling, the recently expanded particles form a vacuum in their interior and this is compensated for by air diffusion during its intermediate maturing in aerated silos.

The beads are dried at the same time.

2019 Insulation Cost – Estimate Foam Board Insulation Prices

This is how the beads achieve greater mechanical elasticity and improve expansion capacity. Then the stabilised pre-expanded beads are transported to moulds where they are again subjected to steam so that the beads bind together. In this way moulded shapes or large blocks are obtained. They are later sectioned to the required shape like boards, panels, cylinders etc. Extruded polystyrene is slightly denser and therefore slightly stronger in compression than expanded polystyrene but has a lower thermal conductivity.

It has a closed cell structure with very low water absorption and vapour transmission properties. It will withstand continuous temperatures up to 75 degrees C and can be easily worked with normal hand tools.

The high-purity graphite particles integrated within the insulation beads reflects radiant heat and significantly improves insulati. It can be used in applications requiring transfer of small mechanical loads. Placed above a concrete slab or a precast concrete floor in domestic ground-floor constructions, then finished with a wearing layer of chipboard to satisfy the Building Regulations' U-value requirements.

Kay-Metzeler achiev. It is an excellent insulating medium which exhibits consistent thermal performance over the range of temperatures normally encountered in buildings. The material is versatile, l. It is made from expanded polystyren.

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It can be bonded or mechanically fixed to the wall. Installing insulatio. Consisting of 9. It can also be used as the external insulation layer in basement walls depth up to 2. It can also be used as the external insulation layer in basement walls dept. It is a lap jointed board. Cellecta insulation products are manufactured to the highest possible specification. Ex All products physical propert. Its extremely low water absorption allows it to be inst. XROOF roof insulation boards are ideal for a multitude of roofing requirements, inc.

It combines the benefits of high performance extruded polystyrene with a facing board to produce a composite thermal.There is a long-standing debate over whether expanded polystyrene EPS insulation or polyurethane PUR insulation is a better material to use for insulation. This is a complex debate that requires knowledge about several different factors.

Expanded Polystyrene EPS Insulation is a rigid closed cell plastic foam that is comprised of hollow, spherical beads that are fused together using steam. Structural insulated panels SIPs are manufactured using both types of insulating materials. So how do they compare? Polyurethane insulation has one of the highest initial at the time of installation R-values per inch in the industry; higher than EPS insulation in equivalent thicknesses.

However, unlike polyurethane, EPS insulation will maintain its initial R-value long after it is first installed. Polyurethane insulation uses the thermal resistance of its blowing agent to attain higher initial R-values.

However, polyurethane insulation loses R-value over time due to thermal drift. According to the US Department of Energymost thermal drift of polyurethane insulation occurs during the first two years.

eps insulation cost

They found that in as short as years, the thermal resistance of EPS insulation and polyurethane insulation will be nearly equivalent. Polyurethane insulation is more expensive than EPS insulation. This cost is due to an initial higher R-value.

eps insulation cost

However, as the Oak Ridge National Laboratory study shows, this R-value degrades over time due to thermal drift. And, at the end of five years, the long term thermal resistance is similar.

At the end of the day, you need to ask yourself why you should pay a premium for a product that will lose its primary advantage after five years. Although EPS insulation is considered combustible, this does not mean that it will burst into flame. It simply means that it behaves similar to other materials such as wood or paper. Fire codes usually require a fire barrier on the interior face of any wall no matter the insulation typewhich is easily met by using a gypsum wallboard.

There are few things to consider when moisture is mentioned, including absorption, disbursement, and mold growth. The same amount of moisture absorbed an average of 0.

6 Reasons to Choose EPS over PIR Insulation

Because both polyurethane insulation and EPS insulation are closed cell structures that resist moisture absorption, both products are equally capable of resisting mold growth. Now that you have a better understanding of the differences between EPS insulation and polyurethane insulation, Contact Us today to start your new home project or ask additional questions.

Want to learn how you can reduce energy costs and gain the structural strength of the Insulspan SIP system for your residential or commercial project? When you work with Insulspan, rest assured that you are working with a financially stable company that produces sustainable, high-quality products through adherence to our core values of quality, service, and expertise. All rights reserved. Homeowners Builders Architects Timber Framers.

Mobile Navigation. Search our Site Insulation Types Expanded Polystyrene EPS Insulation is a rigid closed cell plastic foam that is comprised of hollow, spherical beads that are fused together using steam. Comparison of R-value Polyurethane insulation has one of the highest initial at the time of installation R-values per inch in the industry; higher than EPS insulation in equivalent thicknesses.

What About Fire and Moisture Resistance? Mold Growth Because both polyurethane insulation and EPS insulation are closed cell structures that resist moisture absorption, both products are equally capable of resisting mold growth. Check out our resource center here. Technical Gate Form Please fill out this form to gain access to the requested information as well as information through the rest of our site! File Url. Please include me in email newsletters and notices.

Direct I will purchase the products for my personal home use or business project Builder for use in one of my projects Log or Timber Frame Provider Architect Specifying SIPs I will not be the purchasing agent Engineer I will not be the purchasing agent. Commercial Residential.ACH's EPS roof insulation is reliable, cost-effective and compatible with major roofing materials and systems. Field studies of EPS roof installations that are 20 to 25 years old and older show that EPS roofing insulation performs well in roof applications.

EPS roof insulation has no thermal drift and does not use blowing agents that diffuse out of the insulation. EPS roof insulation R-values remain stable over its entire life without loss of R-value.

ACH products have virtually unlimited design flexibility and can be easily customized. This gives ACH products the ability to be used in almost any Northern California industrial structures for a wide variety of applications, and excellent for flat roof home remodel.

Why EPS Insulation is a Better Value Than Polyurethane Insulation Over Time

It allows for complete code compliance, certification to critical physical properties and roof listings from UL, FM and others. No other EPS can say that. The roofing industry accepts that membrane performance and roof drainage go hand in hand. Membrane manufacturers will not guarantee the performance of their system without positive drainage, and building codes mandate positive roof drainage.

Simply stated, all single-ply, modified bitumen and BUR roofing membranes are less likely to leak and fail if water is not standing on top of them. Potential water damage to the building and its contents is thus eliminated. Also, pre-engineered factory cut cricket and saddle systems provide effective and economical drainage on structurally sloped roof decks.

Suitable for use with all roofing membrane materials, EPS roof insulation is compatible with loose-laid and attached single-ply membranes, conventional built-up roofing or modified bitumen systems.

It is also used with conventional BUR and mechanically or adhesively attached single-ply and modified bitumen membranes when field-applied coverboards are use. Boards are standard 4'x4' and 4'x8' sizes. It's ideal for use with conventional BUR and mechanically or adhesively attached single-ply and modified bitumen membranes. Standard panel size is 4'x4' and 4'x8'. OSB-faced panel size is 4'x8'. Need Windows Media Player?

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As an ideal insulation and nailable roofing surface over structural roof decks, its stability and traffic resistance make it the perfect solution for both residential and commercial roof decks. Standard roofing materials, such as shingles, shakes, standing-seam metal, tile, slate, etc. Direct-to-Deck EPS is a cost-effective, durable and energy-efficient solution for roof insulation.Insulation is a term used to describe products that help to reduce heat loss or improve heat gain by providing a barrier between two areas that differ in temperature.

There are many different types of insulation, all of which differ in cost, use, pros, and cons. It is important to insulate an entire home as it is the most practical and cost-effective way to make a house more energy efficient.

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This will keep it cooler in the summer months and warmer in the winter months. An insulation project should be completed by a professional. A professional insulation expert will have the knowledge and skills needed to properly insulate your home, as there are many decisions to be made regarding insulation type, climate, and the home itself.

For energy efficiency purposes, it is extremely important that a house has proper insulation from the roof right down to its foundation. Below are parts of a home that need insulation, their cost, and type of insulation most commonly used for each area.

The attic is usually one of the greatest areas for heat loss in the home. The lower part of the home is warm because of the furnace. Since heat rises, the warm air goes up into the attic, and out of the roof. The only way to prevent this is to insulate the attic. Typically loose-fill blown-in insulation or batt insulation is installed in an attic. Blown-in insulation is great because it can be blown into all areas of the attic including the floor, roof, walls, and around joists.

Batt insulation is best for the attic roof. The average cost to install loose-fill blown-in insulation or batt insulation in a 1, sq. Insulating cathedral ceilings is important for ceiling areas to remain close to room temperature and therefore allow for evenly distributed temperatures throughout the home.

For ceilings, there must be space between the roof deck and ceiling for adequate installation. Batt insulation, typically foil-faced insulation, is often used for cathedral ceiling installations.

This is because batt insulation gives the permeability rating that is needed for ceilings. To insulate a sq. Adding insulation to your exterior walls will prevent your home from feeling cold in the winter months and warm in the summer months.

eps insulation cost

Adding exterior wall insulation is often expensive and requires a professional contractor to do the work. Depending if the home is existing or new, the insulation types may differ. For an existing home, consider using a blown-in type of insulation. For a new home, there are many options such as insulated panels and concrete forms that can be decided on in the planning phase of your home. Typically, when someone insulates exterior walls they do all of them at once. Adding insulation to floors above unheated garages is very important.

This will not only insulate against heat transfer, but also prevent unwanted contaminants that are in the garage from coming into the house, such as paint, chemicals, or car exhaust. Installing insulation to flooring above an unheated garage for a 1, sq. Having your basement properly insulated can save you money on heating and provide you with a comfortable temperature.