5 Reasons Why Your Business Needs Extruded Insulation Board？

If you're looking to make your home more energy-efficient, reduce utility costs, and enhance overall comfort, then you've come to the right place. In this blog, we'll explore the ins and outs of extruded polystyrene (XPS) insulation, a popular choice among homeowners and construction professionals alike.

Click here to get more.

Extruded polystyrene insulation offers a range of benefits that make it an excellent option for both new construction and refurbishment projects. From its exceptional thermal performance to its moisture resistance and durability, this foam insulation board has proven its effectiveness in creating energy-efficient and sustainable buildings.

What is Extruded Polystyrene Insulation?  

Extruded polystyrene (XPS) is a type of rigid foam insulation material made from polystyrene, a synthetic polymer derived from petroleum. The manufacturing process involves melting the polystyrene beads and then extruding them through a dye to form a continuous, closed-cell structure.

The resulting foam boards have a smooth, dense surface and a uniform structure. They are available in various thicknesses, densities, and dimensions to suit different insulation requirements.

Buy extruded polystyrene insulation

What is XPS Insulation Used For?

Below are a few examples of the versatile applications of extruded polystyrene insulation:

1. Wall Insulation: XPS insulation is commonly used to insulate exterior walls, providing a thermal barrier that reduces heat loss or gain. It helps improve energy efficiency, maintain consistent indoor temperatures, and reduce heating and cooling costs.

2. Roof Insulation: XPS insulation is an effective choice for insulating roofs, whether it's flat roofs, pitched roofs, or inverted roofs. It helps prevent heat transfer between the building and the outside environment, reducing the need for excessive heating or cooling.

3. Floor Insulation: XPS insulation can be installed under concrete slabs or floor finishes to minimise heat loss and enhance thermal comfort. XPS boards with higher compressive strength making them ideal for floor insulating purposes. It is commonly used in both residential and commercial buildings to improve energy efficiency and provide a barrier against cold floors.

Why use Extruded Polystyrene Insulation?

There are several compelling reasons to use extruded polystyrene (XPS) insulation in construction and building projects. Here are some key benefits:

1. Excellent Thermal Performance: XPS insulation provides high thermal resistance, effectively reducing heat transfer through building components. It helps maintain consistent indoor temperatures, improves energy efficiency, and reduces heating and cooling costs.

2. Moisture Resistance: XPS insulation has a closed-cell structure that makes it highly resistant to moisture absorption. Its moisture resistance helps protect against mould, mildew, and rot, promoting a healthier indoor environment.

3. Durability and Longevity: XPS insulation is known for its strength and durability. It can withstand heavy loads without deforming or compressing, making it suitable for load-bearing applications. It has a long lifespan and retains its insulation properties over time, providing long-term energy efficiency benefits.

4. Versatility: XPS insulation is available in various thicknesses, densities, and dimensions, offering flexibility in meeting different insulation requirements. It can be used on walls and floors, adapting to diverse construction applications.

5. Lightweight: XPS insulation is lightweight compared to some other insulation materials. This makes it easier to handle, transport, and install, reducing labour and installation costs.
6. Building Regulation Compliance: XPS insulation typically meets or exceeds building regulation requirements for thermal insulation. It is recognised and accepted by building authorities, making it a trusted and widely used insulation material.

By choosing extruded polystyrene foam insulation, you can improve energy efficiency, enhance building comfort, protect against moisture damage, and contribute to sustainable construction practices. Its combination of thermal performance, durability, and versatility makes it a reliable choice for various insulation needs.

Buy extruded polystyrene insulation

EPS Insulation Vs XPS Insulation 

Both extruded polystyrene (XPS) and expanded polystyrene (EPS) have their own advantages and considerations, and the choice between the two depends on specific project requirements. Here's a comparison between XPS and EPS insulation: 

1. Insulation Performance: XPS insulation typically has a higher R-value (thermal resistance) per inch compared to EPS insulation. This means that XPS provides slightly better insulation performance for a given thickness. However, both materials offer good thermal insulation properties.

2. Moisture Resistance: XPS insulation has better moisture resistance than EPS. Its closed-cell structure makes it highly resistant to water absorption, while EPS is more susceptible to moisture penetration. 

3. Compressive Strength: XPS insulation has higher compressive strength than EPS. It can withstand heavy loads without significant deformation, making it suitable for applications requiring load-bearing capacity, such as insulating plaza decks or under concrete slabs.

4. Cost: EPS insulation is generally cheaper than XPS insulation. EPS is more cost-effective for many applications, especially when a higher compressive strength or exceptional moisture resistance is not required.

5. Installation and Handling: Both XPS and EPS insulation are lightweight and easy to handle. They can be cut, shaped, and installed using similar methods. EPS insulation is typically available in larger panel sizes, which can speed up installation.

XPS insulation generally offers higher moisture resistance and compressive strength compared to EPS insulation, but it tends to be more expensive. EPS insulation, on the other hand, is cost-effective and offers good insulation performance, making it suitable for many projects. However, the choice between XPS and EPS depends on the specific requirements, budget, and priorities of the project.

What are the Disadvantages of Extruded Polystyrene Insulation?

Some key disadvantages of XPS insulation:

1. Environmental impact: Derived from petroleum, limited recyclability.
2. Global Warming Potential: Higher compared to some other insulation materials.
3. Limited recyclability: Challenging to recycle due to its closed-cell structure.
4. Vulnerability to UV exposure: Can degrade when exposed to sunlight.
5. Health concerns: Potential emissions of VOCs during manufacturing.
6. Cost: Generally more expensive than some alternative insulation materials.

Frequently Asked Questions:

Will XPS foam insulation block sound?

XPS foam insulation provides some sound-blocking properties due to its dense and rigid structure, but it is not specifically designed as a soundproofing insulation

Is Extruded Polystyrene a good insulator?

Yes, extruded polystyrene (XPS) is considered a good insulator. It has excellent thermal insulation properties, meaning it effectively reduces heat transfer through walls, roofs, floors, and other building components. XPS insulation's closed-cell structure minimises air movement and heat conduction, providing high levels of insulation performance. It helps maintain consistent indoor temperatures, improves energy efficiency, and reduces heating and cooling costs.

Buy extruded polystyrene insulation

Is Extruded Polystyrene Insulation Recyclable / Environmentally Friendly?  

Extruded polystyrene (XPS) insulation has some environmental considerations. While it offers energy-saving benefits and durability, there are aspects that may be less environmentally friendly:

1. Raw Materials: XPS insulation is derived from petroleum, a non-renewable resource. The extraction and processing of petroleum have environmental impacts, including carbon emissions and habitat disruption.

2. Manufacturing Process: The manufacturing of XPS insulation requires energy and involves the use of blowing agents, which can contribute to greenhouse gas emissions and have a global warming potential.

3. Limited Recyclability: This polystyrene foam insulation board is less commonly recycled compared to other insulation materials like expanded polystyrene (EPS). The closed-cell structure of XPS makes recycling more challenging, and proper disposal at the end of its life cycle is essential to minimize environmental impact.

However, it's worth noting that manufacturers are taking steps to improve the environmental profile of XPS foam boards. This includes increasing the use of recycled content, exploring alternative blowing agents with lower global warming potential, and developing more recycling options.

Buy extruded polystyrene insulation

In Conclusion:

In conclusion, extruded polystyrene insulation offers significant benefits in terms of thermal performance, moisture resistance, and durability. It is an effective choice for enhancing energy efficiency, reducing heating and cooling costs, and creating comfortable living spaces. 

To make the most informed decision, it is crucial to weigh the advantages and disadvantages of XPS insulation against specific project requirements, budget constraints, and environmental considerations. Additionally, staying updated on advancements in XPS insulation technology and recycling initiatives can contribute to making more sustainable choices.

By understanding the properties, applications, and potential environmental implications of extruded polystyrene insulation, homeowners, construction professionals, and DIY enthusiasts can make informed decisions and contribute to creating energy-efficient, comfortable, and sustainable buildings.

For top-rated XPS foam boards visit Buy Insulation Online. We stock xps boards from leading brands like Polyfoam, Prowarm and others. In addition to foam insulating materials like PIR boards and expanded polystyrene, we also stock loft insulation batts and boards, multifoil insulation and a wide eco-insulation range. By purchasing insulation online from us, you also improve your carbon footprint!  

Decai Product Page

Buy extruded polystyrene insulation

Extruded polystyrene (XPS) closed-cell, rigid XPS insulation significantly improves the energy efficiency of unfinished exterior and interior walls for remodeling and new construction. In addition, the XPS boards provide thermal resistance with an R-value of 4.6 to 5.0, depending on their density, to create a comfortable indoor temperature and reduce utility bills. Moisture-resistant XPS panel insulation, with an absorption rate of 0.3 percent, resists moisture intrusion during and after application to help protect against damaging and unhealthy mold and rot.

Lightweight, versatile, and simple to install, extruded polystyrene sheets typically come in 8-foot and 5-foot lengths, ranging from 16 inches to 4 feet wide and ¾-inch to 4-inches wide. The sheets come unfaced, and are covered with a foil facing, or laminated with plastic. The facing adds water resistance, and the lamination offers strength, but neither affects the sheets' R-value. XPS sheets come in an array of colors (typically blue, green, and pink), based on the manufacturer, not insulating quality.

What is an XPS Insulation Board Used For?

Flexible XPS boards come in various compressive strengths, making them ideal for numerous applications in all areas of the building envelope:

• Above-grade insulation applications (walls, attics, ceilings, floors, and roofs)
• Below-grade walls (basements and foundation)
• Cool/refrigerated rooms
• In addition, you can use high compressive strength XPS panels to insulate rooftop parking garages and decks.

How is XPS Insulation Made?

Manufacturing XPS insulation involves combining polystyrene crystals with special additives and a gas blowing agent. Manufacturers feed the mixture into an extruding machine that blends and melts it into a thick liquid. The liquid then gets processed through a die, which expands it into foam, shapes, cools, and trims it into standard-sized rectangular or square boards, with surfaces according to the intended use.

XPS Surfaces

Specially designed machines produce XPS boards in smooth, rough, and grooved surfaces.

XPS Smooth Edge Panels

Demanding applications, like below-grade installation, utilize smooth XPS panels. Smooth, closed-cell XPS panels protect against absorption and diffusion due to long-term water exposure.

XPS Rough Surface Panels

Rough surfaces increase the adhesion of the facade plaster.

XPS Panels with Grooves

Grooves in the XPS panel enhance wall drainage and thermal insulation for foundations.

The Benefits of XPS Insulation

XPS insulation offers many benefits contributing to an eco-friendly, healthy, durable, and safe building envelope.

Energy-Efficient

XPS closed cell insulation, with an R-value of 4.6 and 5.0, gives it a high thermal resistance value, making it extremely energy efficient, by saving energy in buildings and reducing CO2 emissions.

Recyclable

100-percent recyclable XPS allows manufacturers to melt and reform the thermoplastic polystyrene resin into new XPS foam insulation.

XPS High Compressive Resistance

XPS insulation's high compressive strength allows it to withstand a high pressure of >300 kPa, so it can withstand more than lbs ft2 (30,000 kilos m2) with a maximum deformation of 10 percent, making it ideal for challenging applications:

• Below-grade walls ' foundations, basements, crawl spaces
• Perimeter insulation ' protecting foundation walls from the side of the ground
• Inverted roofs ' applying the waterproofing layer beneath instead of above the insulation
• Cavity walls ' a wall with a hollow center
• Pitched roofs ' roofs that slope downwards, often in two parts at an angle from a central ridge
• Walkable plates ' the strength of XPS insulation makes it ideal for horizontal applications like floors, flat roofs, and heavily trafficked areas

Moisture-Resistant XPS Insulation

XPS insulation provides water and freeze-thaw resistance, to protect the insulation's thermal performance from damaging rot and unhealthy mold. In addition, the high permeability of XPS insulation makes it ideal for bathrooms and other high-moisture rooms.

Simple to Install XPS Insulation

Lightweight XPS insulation allows for easy application without irritating the worker's skin.

Problems with XPS Insulation

• The combustibility of polystyrene foam makes XPS's proper installation vital to avoiding a fire hazard and the emission of toxic fumes.
• The blowing agents in the manufacturing process may deplete over time, lessening the insulation value.
• XPS's low-permeability can lead to condensation and mold problems.
• Over time, the gas bubbles within the XPS leak out, leaving air that lessens the panels' insulation value.
• Most building professionals do not recommend XPS insulation on flat roofs because it will deform above 80 degrees.

How to Install XPS Boards

Applying XPS insulation boards involves gluing the lightweight sheets to the substrate, which is much simpler than batts, blown-in fibers, or spray foam insulation. It is important to only use the manufacturer's recommended foam-safe adhesive. The wrong glue can melt the foam. In addition, butt the sheets snugly together and seal joints with a manufacturer-recommended adhesive seam tape.

Tips for Filling Wall and Ceiling Cavities

To insulate the stud, joist, and rafter cavities, cut the sheets to fit snug in the cavities, inserting them flush with the framing. To prevent airflow that can diminish the R-value, fill gaps along the edges with expandable insulation foam, safe for use with XPS. You can increase the R-value in two-by-six and larger dimension framing by inserting an additional layer of rigid foam insulation.

Tips for Cutting the XPS Boards

You can simply cut thin XPS sheets (less than 2-inches) by holding the straight edge of a utility knife along the cut line, scoring it about 3/4-inch deep. After scoring, lay the sheet on a table scored side up with the cut about 1-inch off the table. Firmly hold the sheet down and snap along the line. Trim the rough edges with the utility knife

For thicker sheets (greater than 2-inch), you will need a handheld drywall saw, or a table saw.

Tips for Installing XPS on Exterior Sheathing

Installing 2-inch EPS boards on exterior sheathing requires additional furring strips or other structural supports. In addition, 2-inch XPS does not supply the strength needed to support the weight of the siding. Therefore, Sto strongly recommends that you check with your local building authority to determine the required type of additional support before installing 2-inch XPS as exterior sheathing.

Sto XPS Continuous Insulation Wall Systems

Sto offers superior, simple-to-apply cladding solutions for applying XPS to an exterior wall system compared to XPS insulation boards: StoTherm ci XPS and StoPanel XPS ci. In addition, Sto XPS CI wall systems meet the requirements of fire, energy, and green building codes.

Sto XPS Wall Systems meets the requirements of NFPA 285 and NFPA 268 for use on non-combustible construction (Types I-IV).

Sto XPS Wall Systems International Building Codes (IBC)

• Ch. 26: Types I-IV (non-combustible) Construction, Ignition Resistance, Surface Burning Characteristics
• Ch. 17: Special Inspections, Types I-IV (non-combustible) Construction
• Ch. 16: Structural ' Transverse Wind Load Resistance
• Ch. 14: Exterior Insulation and Finish Systems, Weather Resistance
• Ch. 7: Fire Resistance Rated Construction

Sto XPS Wall Systems International Energy Conservation Code (IECC)

• Ch. 4: Continuous Insulation (ci) over Metal Frame Walls ' All Climate Zones (with sufficient ci thickness)
• Ch. 4: Continuous Air Barrier

Sto XPS Wall Systems International Green Construction Code (IGCC)

Ch. 6: Energy Conservation, Efficiency and Atmospheric Quality (Section 606: Building Thermal Envelope insulation and Air Sealing) Alternative Compliance Path: ASHRAE 189.1-

Sto XPS Wall Systems ASHRAE 90.1

• Section 5: Building Envelope Continuous Insulation (ci) over Metal Frame Walls ' All Climate Zones (with sufficient ci thickness)
• Section 5: Continuous Air Barrier

Sto XPS Wall Systems ASHRAE 189.1 Green Building Standards Compliance

• Normative Appendix A: Building Envelope
• Continuous Insulation (ci) over Metal Frame Walls ' All Climate Zones (with sufficient ci thickness) Normative Appendix B: Continuous Air Barrier

StoTherm® ci XPS 

Durable StoTherm® ci XPS, one of StoTherm® ci wall systems, is a drainable exterior insulation finishing system that incorporates high R-value XPS insulation into the wall system, and StoGuard® fluid-applied air and moisture barrier, with Owens Corning Foamular CI-C or Dow STYROFOAM' Panel Core 20 insulation. StoTherm® ci XPS produces water and airtight air walls to ensure superior durability and thermal efficiency.

The unique, durable system sustains maximum curb appeal and lowers energy bills to save money. In addition, StoTherm® ci XPS can be finished with a variety of Sto textured finishes or specialty aesthetic finishes to accommodate your building's design needs.

StoPanel XPS ci Wall System

Lightweight StoPanel XPS ci prefabricated panels incorporate extruded insulation within the panel assembly, and create exterior wall cladding with excellent air and weather tightness, superior thermal performance, and long-lasting durability. In addition, architects and designers can choose from Sto's numerous decorative and protective color and finish options.

StoPowerwall® ci with Crack Defense option

StoPowerwall® ci energy-efficient stucco wall systems include StoGuard® air and water-resistive barrier, Owens Corning or Dow Type IV XPS insulation board, Sto DrainScreen, and Sto textured finishes.
StoPowerwall ci integrates continuous XPS insulation, air/moisture barrier, drainage, and Sto's extensive collection of aesthetic surfaces in a hard coat stucco system.

Sto Colors

Designers can use Sto's unique Color System as a planning tool for choosing the colors for their architectural designs. The Sto Color System provides several benefits:

• Clear, logical system makes it quick and easy to understand
• Ensures reliable application of Sto's endless and harmonic colors for use on exterior and interior
• Efficient, perception-oriented presentation media for all phases of color design

The Sto Color Collections include:

• Sto Color 800 Collection
• Sto Color Architectural Collection
• Sto Color Classic Collection
• Sto Color Southwest Collection

Sto Traditional Finishes

Sto's extensive selection of finishes features pure white marble aggregate, acrylic polymers in various textures, and a wide range of color options to boost your design and harmonize with the surrounding environment. In addition, durable, high-performing Sto finishes resist dirt and water, protect the building's facade, and enhance its curb appeal. Sto high-quality finishes include:

StoCast Finishes

Specialty Aesthetic Finishes

StoSignature

Sto Traditional Finishes

iQ Technology

Sto Has the Best XPS Wall Insulation Solutions

Sto offers superior, sustainable, simple-to-apply, multiple code-compliant cladding solutions for applying XPS to an exterior wall system compared to XPS insulation boards. Drainable StoTherm® ci XPS and StoPanel XPS ci create high-performing, sustainable, and attractive cladding systems, improve indoor comfort and air quality, save both money and energy, and ensure long-term durability:

If you are looking for more details, kindly visit Extruded Insulation Board.

• StoTherm® ci XPS integrates continuous XPS insulation, air/moisture barrier, drainage, and Sto's extensive collection of aesthetic surfaces.
• StoPanel XPS ci incorporates XPS insulation within the panel assembly, to create a prefabricated finished exterior wall solution with a wide range of high-end aesthetic options.
• StoPowerwall ci integrates continuous XPS insulation, air/moisture barrier, drainage, and Sto's extensive collection of aesthetic surfaces in a hardcoat stucco system.