Sandwich Panel Roof Manufacturer

Sandwich Panel Roof: An Ultimate FAQ Guide.

Introduction

In today's fast-paced world, high-performance sandwich panel roofs have become a necessity for modern architecture. This necessity is due to their structural characteristics, attractive aesthetics, economic cost, and fast installation. In this document, we have compiled a list of the most commonly asked questions about sandwich panel roofs. If your question isn't answered here, please contact us.

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Q1: What Is a Sandwich Panel Roof?

A sandwich panel roof is a modern prefabricated roofing system used to build roof structures and building envelopes with high structural rigidity, mechanical performance, high strength, and lightweight requirements. Sandwich panel roofs comprise three components bonded strongly to each other. The insulation core is made from high-performance thermo-insulating materials such as Polyurethane (PU/PUR), Polyisocyanurate (PIR), Extruded Polystyrene (XPS), and mineral wool. The internal and external skin layers are available in Hot-Dip Galvanized steel sheets, Aluminum sheets, Stainless steel sheets, GRP (Glass-fiber reinforced plastic), and more. Each component is designed to offer indispensable stability, high thermal resistance, soundproofing, and withstand potential snow loads, wind loads, and seismic forces for different building applications, including residential, commercial, industrial, cold storage, and agricultural buildings. Sandwich panel roofs are also preferred by advanced industries such as aircraft, automotive, transportation, and shipbuilding.

Sunnyda sandwich panel roof

Q2: What Are the Applications of Sandwich Panel Roofs?

Sandwich panel roofs have gained popularity over traditional roofing materials due to their excellent structural performance, thermal resistance, acoustic absorption, and fire resistance. Furthermore, modern waterproofing sealants and air-tightness techniques enhance the performance of roof structures, making them robust against harsh natural conditions such as snow, rain, wind, and seismic forces.

Sandwich panel roofs are preferred in various building applications, including:

 

Residential Buildings

Sandwich panel roofs are widely used in residential complexes, private villas, and prefabricated housing. These durable roofing solutions offer long-term aesthetic value and low maintenance, making them a viable alternative to conventional materials like asphalt shingles or tiles, which are prone to cracking and erosion. While sandwich panel roofs can last over 80 years with minimal repairs and endure harsh environmental conditions like wind, heavy snow, and seismic forces, traditional materials require costly periodic maintenance and have a shorter lifespan. Additionally, sandwich panel roofs provide high thermal insulation, retaining warmth in winter and cooling in summer while reducing energy consumption and costs by 20 to 25%.

 

Commercial Buildings

Engineered for durability and aesthetics, sandwich panel roofs are the first choice for commercial construction projects such as office buildings, showrooms, shopping malls, supermarkets, exhibition halls, and workshops. Their weatherproof characteristics, fire resistance, and durability against aging, moisture damage, and UV degradation make them ideal for such applications.

 

Industrial Buildings

Sandwich panel roofs suit industrial buildings like manufacturing facilities, warehouses, power plants, distribution centers, cold storage rooms, and clean rooms. These roofs can be customized to meet specific thermal insulation, load-bearing, weather, and fire resistance requirements efficiently and cost-effectively. They are available in diverse insulation materials, such as rock wool, ensuring higher resistance and thermal performance for fire protection.

 

Agricultural Buildings

Sandwich panel roofs are prevalent in agriculture, satisfying nearly 90% of the farm building requirements, including dairy farms, livestock shelters, poultry sheds, insulated structures, and more. Their excellent thermal insulation, mechanical performance, fire protection, and resistance to corrosion, mold, and pests make them an optimal choice for agricultural facilities.

 

Institutional Buildings

Sandwich panel roofs provide an ideal roofing solution for institutional buildings like government structures, museums, theaters, auditoriums, schools, and sports facilities. Their impressive durability, load-bearing capacity, and elegant appearance make them the top choice for public building construction.

Sandwich panel roof applications

Q3: What Are the Benefits of Sandwich Panel Roofs?

Sandwich panel roofs offer numerous advantages over conventional materials. Here are the top six benefits:

 

Good Strength Parameters

Sandwich panel roofs are widely regarded for their high strength-to-weight and stiffness-to-weight ratios, meeting load requirements across different climatic zones. Advanced engineering technologies ensure airtight and waterproof designs for all roofing applications.

 

Cost-effective and Faster Construction

Prefabricated off-site, sandwich panel roofs allow for quick installations. State-of-the-art machinery enables long spans at affordable costs, and their strength, lightweight, and durability contribute to cost-effective solutions.

 

Excellent Thermal Insulation

Sandwich panel roofs maintain good internal heating and cooling thanks to high-quality core insulation and strong metal-facing sheets. They are customizable to fit specific building insulation needs.

 

Sound Absorption

These roofs deliver effective sound insulation, reducing noise from both indoor and outdoor environments, which benefits buildings in noise-polluted areas.

 

Fire Resistance

Sandwich panel roofs feature fire-resistant structures that can withstand high temperatures. They meet various fire performance requirements, enhancing safety in roofing applications.

 

Energy Efficiency

Designed for superior energy efficiency in extreme climates, sandwich panel roofs can significantly save energy and lower bills by providing continuous insulation performance throughout the building's lifetime.

Fire-resistant sandwich panel roof

Q4: What Comprises a Sandwich Panel Roof?

Sandwich panel roofs are robust structural elements made of a thermo-insulating material sandwiched between metal sheet layers.

 

Core Insulation Material

The insulating core is generally selected based on technical parameters required for thermal and acoustical performance, featuring materials like PU, PIR, EPS, XPS, rock wool, and mineral wool. Different materials offer unique performance aspects, such as fire protection and thermal conductivity.

 

Facing Material

The facing is typically made from double-sided metal sheets that enhance rigidity. Common options include galvanized steel, Aluzinc-coated steel, and aluminum sheets, which offer long-lasting corrosion resistance and various protective coatings.

Sandwich panel roof core material

Q5: What Factors to Consider When Designing Sandwich Panel Roofs?

When designing sandwich panel roofs, it is essential to address structural requirements regarding load-bearing, thermal resistance, soundproofing, weather resistance, and fire protection. Additionally, roofs should comply with aesthetic specifications related to insulation core materials, thicknesses, and finishes.

 

Q6: What Are the Types of Sandwich Panel Roofs?

The choice of sandwich panel roofs depends on factors such as insulation R-Value and structural performance needed. The most commonly used types include:

 

PUR Sandwich Panel Roof

Polyurethane sandwich panel roofs offer excellent thermal insulation, energy efficiency, and durability. They are customizable to meet aesthetic needs.

 

PIR Sandwich Panel Roof

Polyisocyanurate sandwich panel roofs provide outstanding thermal insulation and a pest-resistant surface, making them suitable for various applications.

 

EPS Sandwich Roof Panel

EPS sandwich panel roofs, known for their rigidity and cost-effectiveness, are widely used in roofing due to their strength and versatility.

 

MW Sandwich Panel Roof

Mineral Wool sandwich panel roofs are ideal for buildings requiring high fire ratings, providing excellent insulation and soundproofing.

PUR sandwich panel roof

Q7: What Is the Difference Between PIR and PUR Sandwich Panel Roofs?

PIR and PUR sandwich panel roofs are commonly used for insulation. The differences include:

 

Chemical Composition

PIR contains a larger amount of isocyanate than PUR, affecting their insulation properties and thermal performance.

 

Insulation Performance

Both materials meet high thermal resistance standards, but PIR has a lower thermal conductivity coefficient, making it more efficient.

 

Fire Resistance

PIR demonstrates enhanced fire resistance, capable of withstanding higher temperatures and maintaining structural integrity longer than PUR in case of fire.

 

Damage Resistance

Both types are resistant to mechanical damage, ensuring protection against corrosion and moisture while remaining lightweight for easy installation.

 

Q8: What Sizes Are Sandwich Panel Roofs Available In?

Sandwich panel roofs can be customized to various sizes, with standard dimensions typically including:

 

Panel Length: ' mm (max. 18 meters).

Overall Width: mm; mm or mm.

Core Thickness: 50; 80; 100; 120; 150; 200 mm.

Sandwich panel roof standard size

Q9: What Are the Specifications of Sandwich Panel Roofs?

Sandwich panel roofs are available in various sizes, materials, and finishes, including:

Panel Core Material: PIR, PUR, Mineral Wool, and EPS insulated roof panels.

Facing Material: Made from Hot-dip galvanized steel, Aluzinc-coated steel, Galvalume sheet, or pre-painted materials.

Exterior metal sheet thickness: 0.40 ' 0.80 mm.

Length: ' mm (maximum 18 meters).

Modular width: mm.

Profiles: Available in multiple designs, including Trapezoidal and Micro linear.

Ribs forms: 3 and 5 rib forms.

Application Layout: Vertical or horizontal installation.

Colour: customizable as per RAL chart selections.

Surface Protection: optional nylon film.

 

Q10: What Type of Coating Protection Can Be Applied To Sandwich Panel Roofs?

Various durable coatings can enhance corrosion resistance and appearance in sandwich panel roofs. Preferred options include:

 

Hot-dip Galvanization

An effective barrier against adverse atmospheric effects, enhancing durability.

 

Polymer Coating

Provides high corrosion resistance and thermal insulation with a smooth surface.

 

PVDF Coating

An advanced coating resistant to corrosion and UV degradation, ideal for challenging environments.

 

Other Coatings

Various coatings like Plastisol can be selected based on specific application requirements.

PVDF coated sandwich panel roof

Q11: What Customization Options Are Provided For Sandwich Panel Roofs?

Customizable options are extensive and can include facing layers, thicknesses, finishes, coatings, and insulation materials to meet precise application requirements.

 

Q12: Are Sandwich Panel Roofs Suitable for Hip and Valley Roofs?

Yes, sandwich panel roofs can be designed to meet the aesthetic and functional needs of Hip and Valley Roof designs.

 

Q13: Are Sandwich Panel Roofs Load Resistant?

Yes, designed to resist external forces like wind uplift, snow, and earthquakes, sandwich panel roofs are engineered for maximum structural strength.

Load resistant sandwich panel roof

Q14: Are Sandwich Panel Roofs Fire Resistant?

Absolutely. Sandwich panel roofs are designed with non-combustible insulating cores and undergo rigorous fire testing.

Class A (severe exposure)

Class B (moderate exposure)

Class C (light exposure)

 

Q15: Are Sandwich Panel Roofs Resistant to Vermin?

Yes, made from inorganic materials, they do not attract insects, rodents, or mold.

 

Q16: Are Sandwich Panel Roofs Environmentally Friendly?

Yes, they are constructed to be resource-efficient and reduce energy consumption significantly.

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Environmentally friendly sandwich panel roof installation

Q17: Are Sandwich Panel Roofs Conformant With The International Building Code?

Indeed, sandwich panel roofs comply with the structural requirements specified in the International Building Code (IBC).

 

Q18: Is It Possible To Run Electricity Within Sandwich Panel Roofs?

Yes, electrical outlet boxes and raceways can be integrated during the fabrication process.

 

Q19: How Can Sandwich Panel Roofs Be Maintained?

Maintain the interior by removing dust and pollutants, and wash exterior surfaces to prevent corrosion.

Refer to the manufacturer's handling guide for proper maintenance.

 

Q20: What Type of Accessories Can Be Provided With Sandwich Panel Roofs?

A variety of accessories are available, including flashings, fasteners, gaskets, and installation components.

Sandwich panel roof screws

Q21: How Long Do Sandwich Panel Roofs Last?

They are durable solutions lasting between 40 to 60 years, with maintenance potentially extending this lifespan by another two decades.

 

Q22: What Warranties Are Provided For Sandwich Panel Roofs?

Warranties from manufacturers cover aspects like structural performance, thermal resistance, and corrosion protection.

 

Q23: How Much Do Sandwich Panel Roofs Cost?

The cost varies based on materials and specifications, typically ranging from $5 to $30 per square meter.

 

Q24: Where Do You Deliver Sandwich Panel Roofs?

We deliver globally to various regions, including the USA, European countries, and the Middle East.

 

Q25: How Long Does It Take To Deliver Sandwich Panel Roofs?

Delivery timelines vary based on order size, ranging from 2 days for in-stock products to longer for customized orders.

 

Q26: Why are Sunnyda Sandwich Panel Roofs Preferred Internationally?

Sunnyda has over 20 years of experience offering top-notch sandwich panel roofing solutions that comply with international construction standards. We cater to various project needs, ensuring timely and cost-effective delivery from our state-of-the-art facilities.

 

Our sandwich panel roofs are built to your specifications and delivered finished, ready for installation.

 

Sunnyda roofs meet all necessary standards, including ISO certifications, ensuring reliable quality.

 

Q27: Need To Speak To An Expert About Your Next Project Requirements?

Please provide details about your project so we can assist you in finding the right sandwich panel roofs. We look forward to the opportunity to do business with you.

100% quality tested sandwich panel roof

Ultimate Guide to EPS Sandwich Panel

Sunnyda provides accessories for EPS sandwich panels, including aluminum channels for walls, different profile roofing capping, inserts for eaves and barge boards, and ceiling hanging materials.

Doors and windows manufactured by Sunnyda can be installed on EPS sandwich panels in the factory.

EPS sandwich panel delivery time is 4-7 days, with a daily production capacity of m2. The joints in EPS sandwich panels are highly efficient, resulting in flat and even walls after installation. The film on the surface prevents scratches during transportation, but it must be removed upon completion of the erection process; otherwise, it may be difficult to peel off.

Two loading methods for EPS sandwich panels are available: loading piece by piece with foam protection at the corners, or loading using a pallet. When unloading, do not use a forklift as it may damage the EPS sandwich panel sections. An average 40HQ container can load around m2 of 50mm panels. EPS sandwich panels are widely used for walls, roofs, ceilings, and partitions in industrial construction.

Order or no order, we are always happy to help your business!

Ultimate Guide for EPS Sandwich Panel

Introduction

The history of building and construction began when people used tents for habitation, then transitioned to bricks, mortar, and wooden structures. Modern technology has led to the creation of prefab houses constructed in factories.

Prefab houses solve numerous issues, including excessive time and financial costs associated with traditional building methods. This guide explores EPS sandwich panels, a remarkable prefab house material with essential insights for consumers.

Chapter One: What is EPS Sandwich Panel?

Figure 1: EPS Sandwich Panel

Similar to other sandwich panels, EPS Sandwich Panels are comprised of multiple layers of materials. They primarily feature expanded polystyrene (EPS), a lightweight cellular plastic known for its durability. EPS does not decompose easily and is not a food source for pests, contributing to its insect-repellent properties. Besides strength and lightweight characteristics, EPS Sandwich Panels also provide a fire resistance rating of up to 65%.

EPS sandwich panels come with galvalume or PPGI steel, ranging from 0.4 to 0.8mm in thickness. With a density of 12-20 kg/m3 and thicknesses between 40-200mm, they are classified as B1 fire retardant insulation panels. EPS sandwich panel widths can be either standard or custom, while lengths are often tailored to user specifications, but typically limited to 11.85m for shipping containers. At Sunnyda, we produce a minimum of m2 of EPS sandwich panels daily, allowing us to handle large orders efficiently.

Chapter Two: Use and Application of EPS Sandwich Panel

Figure 3: EPS Sandwich Panel

For a house to be complete, its roof must protect occupants from natural occurrences like rain or sun. EPS sandwich panels protect against leaks, making them ideal roofing materials for various building types.

• House Floors: Generally inert, EPS does not decay when in contact with other materials, and its thermal insulation maintains temperature balance.
• House Walls: Aesthetic and color-friendly, EPS sandwich panels can only be painted with RAL colors specified by the manufacturer.
• Building Facades: EPS sandwich panels are suitable for all exterior parts of a building.
• Storage and Distribution: EPS sandwich panels effectively serve as storage solutions for fragile materials.
• Offices: They can be constructed into three-story buildings on-site.
• Mobile Restrooms: EPS sandwich panels can be assembled quickly for temporary restroom facilities.
• Private Houses: They facilitate quick construction, adding cost-efficiency to private housing projects.

After examining the uses and applications of EPS sandwich panels, the next focus is on their characteristics.

Chapter Three: EPS Sandwich Panel Fire Behavior

Users often express concerns regarding the fire reactions of sandwich panels. EPS sandwich panels offer satisfactory fire resistance when installed correctly. They do not pose fire hazards when properly contained, according to recognized international recommendations.

Under normal circumstances, EPS sandwich panels show low combustibility. At burning points, they behave similarly to hydrocarbons, softening at temperatures around 212°F (100°C). Ignition occurs at temperatures above 680°F (360°C), after which they can emit dense smoke. However, the emissions produced are not significantly harmful compared to other natural materials.

In conclusion, EPS sandwich panels are B1 fire-resistant materials, meaning their combustibility is low. Care should be taken to prevent direct contact with extreme fire temperatures.

The behavior of EPS sandwich panels under fire has just been explored, but their various benefits lie ahead.

Chapter Four: What Are the Benefits of EPS Sandwich Panel?

Figure 4: EPS Sandwich Panel

Adaptation to Different Weights: EPS sandwich panels are lightweight, allowing for easy handling while still capable of supporting heavy loads.

• Inert Capacity: This means EPS does not react adversely with any other materials, protecting against issues like rust.
• Environmental Barriers: EPS protects occupants from rain, dust, vapor, and heat.
• Thermal Insulation: EPS sandwich panels provide effective temperature regulation.
• Soundproofing: EPS excels in sound insulation, ensuring a quiet environment.
• Cost Efficiency: Overall expenses for EPS sandwich panels are lower than traditional building materials.
• Time Efficiency: They can be ready for use within seven days, making them a fast construction option.
• Reusability: EPS can be repurposed for other projects after its initial use.
• Longevity: EPS offers lifespans ranging from 5 to 20 years.
• Anti-fingerprint options and excellent rust resistance enhance their durability.
• Cost-effective Installation: Only basic screws and no heavy equipment are required for installation, saving on additional costs.

Having outlined the benefits of EPS sandwich panels, it's time to consider important factors before placing an order.

Chapter Five: A Guide to Answer Important Questions Before Getting the Product

Figure 5: EPS Sandwich Panel before Shipment

Addressing crucial questions before ordering EPS sandwich panels minimizes purchasing risks. These questions include:

1. Can I still afford essential expenses after this purchase? Ensure your budget can accommodate it.

2. What type of soil is on my site? Understanding their soil type can determine the foundation strength.

3. Can my building budget sustain additional costs for soil work? Verify to avoid unforeseen expenses.

4. Is there a ban on prefab houses in my area? Always check your local regulations before proceeding.

5. How do I find a reputable supplier for EPS sandwich panels? Avoid distributors and seek manufacturers with ISO accreditation and robust experience.

6. Do I have adequate road access for delivery? Ensure your site can accommodate delivery vehicles.

7. Is my site close to essential amenities like water and power? Unavailability adds extra costs for facilities.

8. Does local building code require an additional fire barrier layer for EPS Sandwich Panels? Assess your local regulations, as they may vary.

Answering these questions ensures you fully leverage the benefits of an EPS sandwich panel building.

It is crucial to review this next section.

Chapter Six: EPS Sandwich Panel FAQs

This section addresses frequently asked questions regarding expanded polystyrene sandwich panels.

Question: Are EPS sandwich panels combustible?

Answer: EPS sandwich panels have low combustibility and are often treated with fire retardants.

Question: Can I install fixtures like kitchens or plumbing in my EPS sandwich panel structure?

Answer: Yes, with appropriate manufacturing, all domestic features can be integrated into EPS sandwich panel buildings.

Question: Can the manufacturer provide contractors? This depends on the manufacturer’s operations. Sunnyda offers both manufacturing expertise and skilled contractors.

Question: How to protect EPS sandwich panels from scratches during construction?

Answer: Request manufacturers to cover products with a removable sheath until project completion.

Discover more about Sunnyda House Company below.

Chapter Seven: Sunnyda House Company

At Sunnyda House Company, we manufacture all our products, ensuring they meet ISO standards.

As the sole distributor, we provide reliable delivery options across all continents.

Our delivery times are seven days from order placement.

A one-year warranty is granted on all our products.

We can also customize EPS sandwich panels with various features, like kitchens and drainage systems.

Sunnyda is a global leader in prefab house materials with over 20 years of experience.

Our customer support is available 24/7 for inquiries globally.

Conclusion

Every chapter in this guide holds significance. With your newfound knowledge about EPS sandwich panels, you can confidently partner with a reputable manufacturer like Sunnyda House Company for supplies. Your comfort and environment are our priority, and we are committed to serving you with sincerity.

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