PU Spray Foam – The Smart Choice for Modern Insulation| Unicorn Chemicals Pvt. Ltd.

PU Spray Foam, short for Polyurethane Spray Foam, is a high-performance insulation material widely used in modern residential, commercial, and industrial construction. Known for its superior thermal resistance, air-sealing capability, and long-term durability, PU spray foam has become the go-to solution for energy-efficient building envelopes.

What Is Spray Foam Insulation?

Spray foam insulation is a type of insulation that is sprayed onto surfaces in liquid form, where it quickly expands and hardens into a solid foam. It’s made by mixing two chemicals— socyanate and polyol resin—which react together and expand up to 30-60 times their original volume.

This expanding foam fills in cracks, gaps, and hard-to-reach areas, creating a tight seal that blocks air, moisture, and even sound. It’s commonly used in attics, walls, ceilings, basements, and crawl spaces for both residential and commercial buildings.

How Does Spray Foam Insulation Work?

Spray foam works by creating an airtight and thermal barrier. Once applied, it expands to fill every crack and hole, preventing air from leaking in or out of the building. This keeps warm air inside during the winter and cool air inside during the summer.

There are two main types of spray foam insulation:

Open-cell spray foam – Soft, lightweight, and flexible. It allows some moisture through but is great for soundproofing and interior walls.
Closed-cell spray foam – Dense, rigid, and acts as a moisture barrier. It has a higher R-value (insulation rating) and strengthens the structure.

Benefits of Spray Foam Insulation

1. Energy Efficiency– It greatly reduces energy loss, helping lower your heating and cooling bills by up to 50%.

2. Air Seal – Unlike traditional insulation, spray foam seals all cracks and holes, stopping air leaks completely.

3. Moisture Barrier– Especially closed-cell foam, which resists water and helps prevent mold and mildew.

4. Soundproofing – Open-cell foam is excellent for reducing noise between rooms or from outside.

5. Long-Lasting– Spray foam insulation doesn’t sag or degrade over time. It can last for decades.

6. Improves Indoor Comfort – It helps maintain a consistent indoor temperature and keeps out allergens and pollutants.

7. Adds Structural Strength – Closed-cell foam reinforces walls and roofs, making your building more durable.

Applications of Spray Foam Insulation

Spray foam insulation is a versatile solution that can be applied in many parts of a building to improve energy efficiency, comfort, and durability. Below are the most common and effective uses:

1. Attics

Attics are one of the biggest sources of energy loss in a home. Spray foam insulation:

Seals all air leaks
Keeps hot or cold air from escaping
Helps HVAC systems work more efficiently
Reduces your energy bills

Whether you insulate the attic floor or the roof deck, spray foam creates a tight thermal barrier that keeps indoor temperatures stable.

2. Walls (Interior and Exterior)

In both new construction and retrofit projects, spray foam is perfect for:

Filling wall cavities
Reducing sound transmission between rooms
Increasing wall strength
Preventing drafts and cold spots

It’s especially effective in external walls to block outside temperatures and reduce utility costs.

3. Crawl Spaces

Crawl spaces are often damp and prone to mold. Closed-cell spray foam insulation:

Acts as a vapor barrier
Prevents moisture buildup
Protects against pests and insects
Insulates floors above the crawl space

This helps keep your home warmer, drier, and healthier

4. Basements

Basements can be a source of cold air and moisture if not properly insulated. Spray foam helps by:

Creating a sealed barrier against moisture and mildew
Providing extra insulation to reduce heat loss
Making the space more comfortable and usable

5. Ceilings and Roofs

Spray foam insulation on roofs and ceilings:

Prevents air and water leaks
Reduces the risk of ice dams
Extends the lifespan of the roofing system
Helps control indoor temperatures during extreme weather

6. Garages

Insulating your garage with spray foam:

Keeps the space warmer in winter and cooler in summer
Protects against fumes, dust, and noise
Makes attached garages more energy-efficient for the rest of the house

7. Metal Buildings and Pole Barns

Spray foam is widely used in commercial and agricultural buildings like:

Warehouses
Barns
Storage units

It controls temperature, reduces condensation, and strengthens the structure.

8. Soundproofing Applications

Open-cell spray foam is ideal for:

Home theaters
Recording studios
Office partitions

It reduces noise transfer and provides acoustic insulation in residential and commercial buildings.

9. Pipes and Ductwork

Spray foam can also be used to insulate around pipes, HVAC ducts, and vents, helping:

Reduce heat loss from hot water pipes
Prevent pipes from freezing
Improve the efficiency of air distribution systems

10. Mobile Homes and Tiny Houses

Spray foam insulation is perfect for smaller or mobile structures because:

It’s lightweight
Saves space compared to bulky fiberglass
Provides excellent thermal performance in tight areas
As of 2025, the cost of spray foam insulation in Pakistan varies based on the type of foam, application area, and whether you opt for professional installation or a DIY approach. Here’s a detailed breakdown to help you understand the current pricing landscape:

Types of Spray Foam Insulation and Their Costs

1. Open-Cell Spray Foam

Cost: Approximately PKR 35 to PKR 55 per board foot.
Characteristics:

Lightweight and flexible.
Lower R-value (\~3.5 per inch), making it suitable for interior applications like soundproofing.
More affordable than closed-cell foam.

2. Closed-Cell Spray Foam

Cost: Ranges from PKR 100 to PKR 200 per board foot.
Characteristics:

Denser and more rigid, providing structural support.
Higher R-value (\~6.0 per inch), offering superior thermal insulation.
Acts as a vapor barrier, making it ideal for roofs, basements, and exterior walls.

DIY Spray Foam Insulation Kits

For smaller projects or touch-ups, DIY kits are available:

Akfix 805 Gap Filler (2×12 Oz.): Priced at approximately PKR 4,800.
Akfix Thermcoat Closed-Cell Spray Foam Kit (240 Board Feet) Available for around PKR 95,594. 

These kits are suitable for minor applications like sealing gaps around windows and doors.

Professional Installation Costs

For larger areas, professional installation is recommended to ensure proper application and safety. The cost typically starts from PKR 100 per square foot, depending on the project’s complexity and location.

Sure! Here’s a comprehensive section on how to choose the right spray foam insulation contractor:

Choosing a Spray Foam Contractor

When it comes to installing spray foam insulation, choosing the right contractor is just as important as selecting the right insulation material. A poorly installed spray foam job can lead to air leaks, moisture issues, and even health concerns. Here’s how to find a qualified, trustworthy spray foam insulation contractor in your area:

1. Look for Experience and Specialization

Choose a contractor who specializes in spray foam insulation, not just general insulation services. Spray foam requires technical expertise and precise application.

Ask how many years they’ve been working with spray foam.
Request photos or case studies of past projects.
Check if they’ve worked on similar types of buildings (residential, commercial, metal structures, etc.).

2. Verify Licensing and Certification

Professional contractors should be:

Licensed to operate in your region.
Certified by recognized insulation associations such as SPFA (Spray Polyurethane Foam Alliance).
Properly insured with liability and workers’ compensation coverage to protect you and your property.

3. Ask About Products and Equipment

A reliable contractor should use high-quality spray foam products with a proven performance track record. Ask:

What brands of spray foam they use (e.g., Icynene, BASF, Demilec).
Whether the foam is open-cell or closed-cell—and why they recommend it for your application.
If they follow manufacturer guidelines for mixing, curing, and safety.

4. Request an In-Person Inspection and Quote

Never settle for a phone estimate alone. A trustworthy contractor will:

Visit your site for a detailed inspection
Evaluate the area’s size, ventilation, and moisture conditions.
Provide a written quote with a breakdown of labor, materials, foam type, and coverage area.

This shows professionalism and prevents any hidden charges.

5. Review Warranty and Guarantee Terms

Good contractors stand by their work. Always ask for:

Product warranty (usually 10–25 years depending on the brand).
Workmanship guarantee, covering issues like improper installation or early failure.
Written documentation detailing the coverage and claim process.

6. Read Customer Reviews and Testimonials

 Check Google, Facebook, and local business directories.
 Look for consistent patterns in feedback, both positive and negative.
 Be cautious of any contractor with multiple complaints about missed deadlines, poor quality, or lack of professionalism.

7. Discuss Safety and Ventilation Protocols

Spray foam installation involves chemical handling and requires proper ventilation and curing time.

 Ask what safety gear and equipment the crew uses.
 Ensure they follow proper ventilation guidelines and will inform you when it’s safe to return.
Confirm whether cleanup and disposal are included in the service.

8. Compare Multiple Quotes

Don’t rush. Get at least 2–3 quotes from different contractors.

Avoid going with the cheapest option unless their reputation and certifications are solid.
Choose the best value, not just the lowest price.

9. Ask for a Timeline

Ask how long the project will take, from preparation to clean-up.
Get a written timeline in your contract.
Make sure the contractor commits to your schedule.

10. Trust Your Instincts

If something feels off—such as vague answers, lack of transparency, or pushy sales tactics—it’s better to walk away. A professional contractor will:

Treat you with respect.
Offer clear communication.
Prioritize safety, quality, and customer satisfaction.

Certainly! Here’s a detailed, SEO-optimized section on maintaining spray foam insulation:

Maintaining Spray Foam Insulation

Spray foam insulation is known for its durability and low maintenance but like any building component, it benefits from periodic attention to ensure optimal performance over time. With proper care, spray foam can last 20 to 30 years or more. Below are the key practices and tips for maintaining spray foam insulation in your home or commercial space:

1. Conduct Periodic Visual Inspections

Even though spray foam is resistant to moisture, pests, and mold, it’s wise to visually inspect it annually for:

Cracks or separation from walls or roof surfaces.
Discoloration, which could indicate water intrusion or UV exposure.
Sagging or shrinkage in certain areas (especially open-cell foam).
Signs of mold, mildew, or musty smells, especially in basements and attics.

2. Check for Moisture or Water Damage

Spray foam is water-resistant, but leaks from roofs or pipes can damage underlying materials.

Ensure gutters, downspouts, and roofing are in good condition.
Use a moisture meter in vulnerable areas (e.g., crawl spaces).
If you discover moisture buildup behind the foam, consult a professional immediately—trapped water can lead to structural rot.

3. Maintain Proper Ventilation

To avoid moisture condensation in sealed spaces:

* Keep ventilation systems functional, especially in attics and crawlspaces.
* Use dehumidifiers in high-humidity areas.
* Install exhaust fans in kitchens and bathrooms to prevent indoor humidity from affecting insulation.

4. Avoid Physical Damage

Spray foam is durable but can be punctured or compressed under pressure:

* Avoid drilling or hammering into walls without knowing what lies behind them.
* Don’t store heavy items directly on foam-insulated walls (especially in attics or garages).
* Seal off foam surfaces that might be exposed in utility areas or basements.

5. Address Pest Entry Points

While spray foam acts as a deterrent to insects and rodents, pests can still enter through gaps around windows, vents, and ducts.

Seal all entry points with caulk or pest-resistant materials.
Regularly inspect foam near plumbing or HVAC entries where rodents may try to chew through.

6. Reapply Protective Coating (If Exposed)

Spray foam that is exposed to sunlight (UV rays) will degrade over time.

* In outdoor or exposed areas, ensure a protective UV-resistant coating (like elastomeric paint or silicone) is applied.
* Reapply the coating every 5–10 years, depending on the manufacturer’s instructions and weather conditions.

7. Repair Minor Damages Promptly

Small cracks or dents in spray foam can be repaired using:

Spray foam repair kits, available at hardware stores or online.
Professional touch-up services, especially for closed-cell foam in critical areas.

Note: Never attempt DIY repairs in structural or electrical zones—consult a certified installer.

8. Monitor Energy Bills for Sudden Spikes

One of the best indicators of insulation performance is your utility bill.

* A sudden increase in heating or cooling costs may indicate thermal leakage or insulation breakdown.
* Conduct a thermal imaging scan or blower door test to detect problem areas.

9. Consult Professionals for Re-inspection

Every few years, hire a professional insulation contractor to:

* Perform a thorough inspection with thermal imaging.
* Identify areas with reduced R-value due to aging or environmental impact.
* Recommend upgrades or reinforcements if needed (e.g., layering additional foam).

10. Keep Documentation Safe

Keep records of:

Installation details, including product type and R-value.
Warranties and service agreements.
Notes on inspections, maintenance, and repairs.

This will help streamline any future upgrades or warranty claims.

Certainly! Here’s the revised introduction with a strong emphasis on 20 years of trusted market service:

Introduction to Unicorn Chemicals Pvt. Ltd.

Unicorn Chemicals Pvt. Ltd. is a name synonymous with quality, innovation, and reliability in Pakistan’s construction chemical industry. With over 20 years of trusted service, we have established ourselves as a market leader, delivering comprehensive solutions that power some of the nation’s most critical construction and infrastructure projects.

As a pioneer in the field of construction chemicals, Unicorn Chemicals offers an extensive product line tailored for residential, commercial, and industrial applications. Our high-performance range includes:

Waterproofing Compounds
Concrete Admixtures
Grouts & Anchoring Systems
Tile Adhesives & Sealants
Industrial Floor Coatings
Surface Hardeners
Protective Paints & Coatings
Bituminous Products
Spray Foam Insulation

Backed by two decades of market expertise, we take pride in delivering solutions that last, particularly our Spray Foam Insulation systems, designed for maximum thermal efficiency, energy savings, and moisture control. Whether it’s insulating homes, commercial buildings, or warehouses, our spray foam technology offers unbeatable performance.

Our continued success is built on a foundation of:

Advanced manufacturing techniques
International quality standards
A team of experienced chemical engineers and field technicians
Exceptional customer support

At Unicorn Chemicals, we don’t just sell products—we deliver complete construction solutions. Our reputation has been earned through two decades of consistent quality, client satisfaction, and technological advancement in the chemical construction industry. If you’re seeking a partner with over 20 years of industry excellence, proven results, and a forward-thinking approach to construction, Unicorn Chemicals Pvt. Ltd. is the name you can trust.