Mineral Wool Insulation Supplier — USA Cross-Border Shipping from Warehoos Branches
Warehoos is a mineral wool insulation supplier shipping to all 50 US states from our branches across USA and Canada. We carry the rigid mineral wool boards, mineral wool batts, and air-sealing accessories that exterior continuous insulation, passive house, and high-performance wall assemblies require — in stock, with 2–3 business day transit to most US destinations.
Mineral wool insulation SKUs we ship to the USA
PowerWool RigiBoard (Warehoos exclusive)
- R-4.0 per inch — rigid mineral wool board for exterior continuous insulation
- Thicknesses: 1.5", 2", 3", 4"
- Sizes: 2' × 4', 16 sq ft / bag
- Compressive strength 616 psf @ 10% (ASTM C165) — ~40% greater than Rockwool Comfortboard 80
- Fully non-combustible (FSI 0, SDI 0)
- Shop PowerWool RigiBoard →
PowerWool RigiBoard ProMax (Warehoos exclusive)
- R-4.0 per inch — high-density rigid mineral wool, 11 lb/ft³
- Thicknesses: 1.5" / 2" / 2.5" / 3" / 4"
- Compressive strength >876 psf @ 10% — direct alternative to Rockwool Comfortboard 110 (584 psf)
- For below-grade, under-slab, and other high-load applications
- Shop PowerWool ProMax →
Rockwool Comfortboard 80
- R-4.2 per inch — rigid stone wool for above-grade and below-grade walls
- Thicknesses: 1.25", 1.5", 2", 2.5", 3"
- Continuous insulation for IECC climate zones 4–8
- Shop Comfortboard 80 →
Rockwool Comfortboard 110
- R-4.3 per inch — higher density for high-load and below-grade applications
- Thicknesses: 1.5", 2", 3"
- Shop Comfortboard 110 →
Rockwool Comfortbatt
- R-15 (3.5"), R-23 (5.5") — cavity insulation for 2×4 and 2×6 walls
- Fire-resistant, water-repellent, non-combustible
- Shop Comfortbatt →
Why builders order mineral wool from a Canadian supplier
US-warehoused supply of premium mineral wool brands is inconsistent. Rockwool Comfortboard lead times have hit 8–12 weeks in recent supply cycles. Warehoos's branches across USA and Canada stock the SKUs that passive-house and high-performance builders specify — and ship in 2–3 business days to most destinations.
Three reasons US contractors use us:
- Stock availability. What we list is what we have. No 6-week wait quotes.
- Cross-border logistics handled. Customs paperwork, brokerage, and freight quoted at order time. No surprise duties.
- Direct contractor pricing. Contact our sales team (sales@warehoos.com or 1-877-383-2671) for volume tiers on orders above 200 board feet.
Cross-border shipping details
- Origin: Warehoos branches across USA and Canada — shipped from the nearest stocked location
- US destinations: all 50 states
- Transit time: 2–3 business days to most US destinations; 4–5 to remote
- Carriers: LTL freight (FedEx Freight, UPS Freight, Old Dominion) for pallet orders; parcel via UPS/FedEx for smaller orders
- Customs: USMCA preference applied for cross-border shipments where eligible; duties and brokerage quoted at order time
- Documentation: commercial invoice + USMCA certificate of origin (cross-border only) provided with every shipment
Frequently asked questions
Q: Does Warehoos ship mineral wool to all 50 US states?
A: Yes. We ship to all 50 states from Warehoos branches across USA and Canada — orders ship from the nearest stocked location. Most US destinations receive in 2–3 business days; remote destinations 4–5.
Q: What's the R-value of the mineral wool boards Warehoos carries?
A: PowerWool RigiBoard is R-4.0 per inch. Rockwool Comfortboard 80 is R-4.2 per inch. Rockwool Comfortboard 110 is R-4.3 per inch. PowerWool ProMax (high-density alternative to Comfortboard 110) is R-4.0 per inch at 11 lb/ft³. Full R-value table at /pages/r-value-mineral-wool.
Q: Is the mineral wool fire-rated?
A: Yes. PowerWool RigiBoard is non-combustible per ASTM E136 with FSI 0 and SDI 0. Rockwool Comfortboard and Comfortbatt also meet ASTM E136 and are non-combustible. All mineral wool products we carry are inorganic — no food source for mold or insects.
Q: How does PowerWool RigiBoard compare to Rockwool Comfortboard 80?
A: PowerWool RigiBoard is approximately 40% more compression resistant than Comfortboard 80 (616 psf vs 439 psf at 10% deformation, ASTM C165), has comparable thermal and fire performance, and is typically in stock when Comfortboard is on extended lead time. For high-load applications, PowerWool ProMax (>876 psf) is the direct alternative to Comfortboard 110 (584 psf). Full comparison at /pages/powerwool-vs-rockwool-comfortboard.
Q: Do you offer contractor or volume pricing for US builders?
A: Yes. Orders above 200 board feet qualify for direct contractor pricing. Contact sales@warehoos.com or 1-877-383-2671 for a quote.
Q: How are duties and brokerage handled for US-bound orders?
A: Duties and brokerage are quoted at order time as a line item on your invoice. USMCA preference is applied where eligible. We use established cross-border carriers familiar with the paperwork — no surprise charges on delivery.
Q: Can I get mineral wool insulation for IECC climate zone 5 or 6?
A: Yes. For climate zones 5 and 6, R-7.5 to R-12 of continuous insulation is typical. Our team can help spec the right thickness — usually 2"–3" of PowerWool or Comfortboard depending on assembly. Contact sales@warehoos.com.
Q: Is mineral wool a better choice than rigid foam for exterior continuous insulation?
A: It depends on the assembly and the priorities. Mineral wool drains and dries better than rigid foam, is non-combustible, and is more vapor-permeable. Rigid foam has slightly higher R-value per inch but doesn't drain and isn't fire-resistant. For exterior continuous insulation in fire-conscious or moisture-managed assemblies, mineral wool is the safer specification.
Q: How long is Warehoos's mineral wool lead time?
A: For stocked SKUs, we ship in 1 business day to in 2–3 day transit. We don't quote 6-week lead times.
Q: Can architects request a quote for a spec project?
A: Yes. Email specs to sales@warehoos.com with quantities and project location. We respond within 1 business day with pricing, lead time, and a USMCA-eligibility check.
Ready to source mineral wool from a Canadian supplier that ships to the USA?
- Browse all mineral wool insulation products →
- Call our direct sales line: 1-877-383-2671
- Email for contractor pricing: sales@warehoos.com