Glass Wool Wholesale: A Buyer's Guide

When you need large amounts of insulation at the best price, it’s easy to get lost in choices. Picking the wrong supplier can cost you more than just money.

Wholesale glass wool is a cost-effective and reliable insulation solution offered in rolls, batts, boards, and pipes, ideal for commercial or industrial applications. Glass wool provides excellent thermal and acoustic performance, meets international safety standards, and is available with multiple facings and in formaldehyde-free options.

glass wool products wholesale — Glass wool insulation roll supplier

If you run a facility or manage a major building project, you’ll care about performance, durability, and compliance. Picking the right glass wool wholesaler will keep your project on budget and reduce headaches down the line.

Contents Hidden

1 Which is better Rock wool or Glasswool?

2 What is the price of 50mm glass wool per square foot?

3 What is another name for glass wool?

4 Are fiberglass and glass wool the same?

5 Conclusion

Which is better Rock wool or Glasswool?

Making a choice between glass wool and rock wool is tough when both promise high insulating power. The wrong choice can mean higher costs or extra maintenance.

Rock wool and glass wool are both mineral fiber insulations but differ in composition. Rock wool offers higher fire resistance and sound proofing, while glass wool is lighter, cheaper, and easier to install. The optimal option depends on specific project requirements and local standards.

rock wool vs glass wool — Rock wool and glass wool comparison

I often get asked about the advantages of both. Let’s compare:

Glass Wool vs Rock Wool Table

Feature	Glass Wool	Rock Wool
Material source	Recycled glass, sand	Basalt, diabase rock
Fire resistance	Good, up to 400°C	Excellent, up to ~1000°C
Density	Typically 10-30 kg/m³	Typically 40-200 kg/m³
Thermal Conductivity	0.032–0.040 W/m·K	0.035–0.045 W/m·K
Sound absorption	Good	Very good
Cost	Lower	Higher
Installation	Ease of cutting, flexible	Rigid, heavier
Water absorption	Low	Very low
Application	General buildings, HVAC	High-temp, industrial, fireproof

For most commercial buildings and most climates, glass wool does the job and fits the budget. In highly regulated, fire-prone, or industrial settings, rock wool could be worth the extra spend. I’ve found that for large-scale energy-saving projects, glass wool’s thermal and acoustic performance strike the right balance.

What is the price of 50mm glass wool per square foot?

Price confusion is common when talking about insulation. Suppliers throw around volume discounts, thicknesses, and density — details that all affect your cost estimate.

The wholesale price for 50mm thick glass wool typically ranges from $0.50 to $1.20 per square foot, depending on density, facing options, quantity, and shipping location. Larger orders and direct-from-manufacturer sourcing can yield even lower unit prices.

glass wool warehouse stock — Glass wool insulation in factory warehouse

Here’s how pricing usually breaks down:

How the Price of Glass Wool Is Calculated

Item	Impact on Price
Thickness (mm)	More thickness, higher price
Density (kg/m³)	Higher density, higher price
Facing (foil, kraft, etc.)	Extra layer, adds to cost
Order volume	Wholesale gets lower price
Packaging	Bulk packs cost less per unit
Country of origin	Local vs import changes freight
Certification	ASTM/EN/CE adds value & cost

I’ve seen that for big international or OEM projects, pricing negotiations focus on volume, compliance with standards (like ASTM C553 or EN 13162), and packaging. We offer formaldehyde-free glass wool and custom R-value solutions for North America, Australia, and New Zealand, saving our customers both time and trouble with market entry.

What is another name for glass wool?

People often get confused about insulation names. Different regions or industries use different terms for the same product, leading to misunderstandings.

Glass wool is also called fiberglass insulation or glass fiber insulation. In some contexts, it’s referred to as glass fibre, spun glass, or glass blanket, depending on its form and local terminology.

You might hear different terms at trade shows or in technical quotes:

Common Alternative Names for Glass Wool

Region	Alternate Names
USA / Canada	Fiberglass, fiberglass insulation
UK / Australia	Glass fibre, glasswool
Europe	Glaswolle (DE), laine de verre (FR)
Technical docs	Spun glass, glass fiber batts
Site reference	Glass blanket, glass mat

In my work, using the right name helps the procurement team avoid mistakes. For instance, “fiberglass batts” are a hot keyword in North America, while “glasswool rolls” fits better for Australia and New Zealand. We adapt our product branding and labels for different export markets, so clear communication saves time.

Are fiberglass and glass wool the same?

When choosing insulation, you’ll want to be sure that you’re not buying the wrong thing because of a language slip. This is a question customers ask all the time.

Fiberglass and glass wool refer to the same insulating material made from molten glass spun into fibers. The terms are used interchangeably, especially in the construction industry, to describe thermal and acoustic insulation in batts, rolls, or boards.

It makes sense to clarify this for both buyers and engineers:

Fiberglass vs Glass Wool Comparison Table

Feature	Fiberglass	Glass Wool
Base Material	Glass	Glass
Manufacturing Method	Spun into fibers	Spun into wool-like texture
Common Forms	Batt, roll, board	Batt, roll, pipe, board
Usage	Buildings, HVAC, industry	Buildings, HVAC, industry
Other Names	Glass wool, glass fiber	Fiberglass, glass fiber

Whenever you see “fiberglass” or “glass wool,” remember you’re looking at the same trusted insulation material. What matters more is finding the right density, thickness, and R-value for your project.

Conclusion

Glass wool is a cost-effective, flexible, and widely used insulation choice. Knowing its forms, pricing, and naming helps you get the best wholesale solution for any project.