it states 5 pack. Is that 5 in one pack and you ship 5 of those packs for total of 25 boards?

We received 2 packages with 5 boards in each

What is actual r value of this product? Want to use in flat roof, and need r-40.

you can look at data sheet for it and convert. I don't think this specific rockwool product has been tested for R value.

Do you have the sl 920 or sl 930 available ?

No, unfortunately not at this time.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Roxul, Rockwool Mineral Wool Board, ProRox SL940 (6# Density), 48" x 24"x 3" Thick

Roxul, Rockwool Mineral Wool Board, ProRox SL940 (6# Density), 48" x 24"x 3" Thick

Product ID: 342929813

Details

Brand
BRB Products
Item Thickness
3 inches
Material
Wool
Product Dimensions
24"L x 48"W
Recommended Uses For Product
noise thermal

🔇6# density noise deadening

🔥Fire resistant stone wool

🌡️R-value 4.2 per inch thermal

Description

🔥 Silence, Safety, and Savings — All Rolled Into One Rock-Solid Board!

SILENCE IS THE NEW LUXURY - High-density mineral wool traps sound waves for a quieter, focused workspace or serene home.
BUILT TO WITHSTAND THE HEAT - Non-combustible stone wool meets ASTM C553 standards, ensuring fire safety without compromise.
ENERGY BILLS MEET YOUR MATCH - Superior R-value of 4.2 per inch slashes heating costs and boosts energy efficiency.
DURABILITY THAT OUTLASTS TRENDS - Engineered for lifetime performance—resistant to moisture, wear, and installation damage.
PRECISION FIT EFFORTLESS INSTALL - Easily cut with a serrated knife for clean edges and perfect coverage every time.

ProRox SL 940 is a premium 3-inch thick mineral wool insulation board offering exceptional noise reduction, fire resistance, and thermal insulation with an R-value of 4.2 per inch. Made from natural stone and recycled materials, it’s water repellent, durable, and designed for easy installation, making it the go-to choice for professional-grade soundproofing and energy efficiency in offices and homes.

Specifications

ASIN	B07YM3522P
Best Sellers Rank	#732,618 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #104 in Construction Boards
Brand Name	BRB Products
Coverage	40 square feet
Customer Reviews	4.6 4.6 out of 5 stars (21)
Included Components	Insulation Board
Item Dimensions L x W	24"L x 48"W
Item Thickness	3 inches
Manufacturer	Rockwool
Material Type	Wool
Model Number	Rockwool
Recommended Uses For Product	noise insulation, thermal insulation, fire resistance
UPC	685757189071

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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