How much does spray foam insulation cost in Boca Raton?

Most Boca Raton homes run $3,500–$9,500 depending on square footage and scope. We give an itemized instant quote by ZIP code, and most homeowners recover the cost in 3–5 years on cooling savings.

Which areas does Cardinal Insulation serve?

We serve Boca Raton, Delray Beach, and Boynton Beach, FL — the entire tri-city corridor from the Boca inlet to Boynton's western estates.

How is Cardinal different from other insulation companies?

We run a 10-point inspection the industry skips, use local crews, quote same day, and back every seal with a lifetime workmanship warranty with FLIR proof reports.

Will spray foam lower my FPL bill?

Yes. Our sealed homes average a 37% cooling-cost reduction. Closed-cell foam plus a radiant barrier reflects up to 97% of radiant heat gain.

How fast can you inspect my home?

Same-week — usually within 3–5 days, often faster. Use the Schedule Inspection button to grab a real-time slot.

Do you work on new construction and existing homes?

Both. We engineer thermal packages for new builds and retrofit existing homes across Boca, Delray, and Boynton.

Is spray foam safe for Florida humidity and coastal homes?

Yes. Closed-cell foam acts as a moisture barrier and structural reinforcement, ideal for salt-air coastal environments.

Palm City, FL · Martin County · Zone 2A

Mineral Wool Insulation in Palm City, Florida

Mineral wool (rock wool) is the premium batt and board insulation for South Florida homes that need fire resistance, sound dampening, and moisture tolerance in one material. At R-3.0–R-4.3 per inch it outperforms fiberglass on density, fire rating, and acoustic performance — and it won't absorb water, won't mold, and won't burn. Cardinal installs mineral wool batts and rigid boards across the corridor where fire code, sound control, or extreme moisture demand it.

(561) 654-7698

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Itemized pricing by zone, back to you within the hour. No call required.

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Owens Corning Certified Installer

ProPink fiberglass, installed to manufacturer spec

FLIR-Certified Thermographers

Before-and-after infrared proof on every job

Licensed & Insured — Florida

Local crews, never subcontracted

Lifetime Workmanship Warranty

Transferable to the next owner

Mineral Wool Insulation for Palm City Properties

mineral wool insulation is the workhorse of Florida attic retrofits. For Palm City properties, this is frequently the right specification — but we will tell you plainly when it is not, and when a less expensive approach delivers the same outcome.

Palm City sits in South Florida, where the recommended attic target is R-38 to R-49. That number, along with where your ductwork runs and what condition the existing assembly is in, is what determines the right specification for your property.

Mineral Wool Insulation at a glance

R-value: R-3.0 to R-4.3 per inch
Installed cost: $1.60 – $3.40 per sq ft installed
Service life: 50+ years
Available in: Palm City and throughout the surrounding area

Call (561) 654-7698

Types and Methods

Mineral wool batts

Dense batts made from spun rock and slag, rated to 1,200°F and non-combustible. They repel water, won't mold, and deliver superior sound dampening compared to fiberglass. Used in walls, floors, and ceilings where fire rating, sound control, or moisture tolerance matter.

Rigid mineral wool boards

Dense rigid boards for continuous exterior insulation. They are fire-rated, moisture-resistant, and dimensionally stable — ideal for exterior wall assemblies where fire code or moisture exposure demands more than rigid foam can deliver.

Mineral wool costs more than fiberglass but delivers superior fire, moisture, and acoustic performance. We recommend it per application — not for every job — based on whether the fire, sound, or moisture requirements justify the premium.

Benefits for Palm City Property Owners

Non-combustible — rated to 1,200°F, won't burn or contribute to flame spread.
Hydrophobic — repels water, won't absorb moisture, won't mold or rot.
Dense structure delivers superior sound dampening vs fiberglass.
Holds R-value in humid conditions — no performance loss in Florida humidity.
50+ year service life — outlasts fiberglass and cellulose by decades.

Best Applications

Fire-rated wall assemblies
Demising walls in multi-family construction
Areas prone to moisture exposure
Sound control between rooms and floors
Continuous exterior insulation on commercial walls

How We Install It in Palm City

1Measure each cavity and select the correct mineral wool batt or board
2Cut mineral wool to fit tight — it is denser than fiberglass and cuts clean
3Friction-fit into the cavity — mineral wool holds its shape without stapling
4Seal around penetrations with caulk or foam
5For continuous exterior: tape seams and flash the assembly
6Verify no gaps or voids and confirm the fire/sound rating
7Walk the job and document the installation

Cost and R-Value Reference

Cost Reference

Florida insulation cost & R-value reference.

Typical installed costs across South Florida by material. Pricing varies with access, square footage, and site conditions — every Cardinal quote itemizes material, R-value, installed inches, and square footage.

Material	Installed cost	R-value / inch	Service life
Blown-in fiberglass	$1.10 – $2.00 / sq ft	R-2.2 – R-2.7 / in	20–30 years
Blown-in cellulose	$1.20 – $2.40 / sq ft	R-3.2 – R-3.8 / in	20–30 years
Fiberglass batts	$0.90 – $2.10 / sq ft	R-3.1 – R-3.4 / in	25+ years
Mineral wool	$1.60 – $3.40 / sq ft	R-3.0 – R-4.3 / in	50+ years
Open-cell spray foam	$1.50 – $3.20 / sq ft	R-3.6 – R-3.8 / in	80+ years
Closed-cell spray foam	$2.40 – $4.90 / sq ft	R-6.0 – R-7.0 / in	80+ years
Rigid foam board	$1.40 – $3.80 / sq ft	R-3.8 – R-6.5 / in	50+ years
Radiant barrier	$0.55 – $1.90 / sq ft	Reflective (no R)	25+ years
Duct sealing + R-8 wrap	$800 – $3,500 / system	R-8 (duct)	15–25 years
Insulation removal	$1.10 – $2.90 / sq ft	—	One-time

Pricing reflects typical Florida installed costs and varies with access, square footage, and site conditions. Source: U.S. Department of Energy insulation guidance, Florida Building Code R402, and IECC climate zone 1 requirements.

Pricing reflects typical Florida installed costs and varies with access, square footage and site conditions.

FAQs

Mineral Wool Insulation FAQs — Palm City

Mineral wool batt installation runs $1.60–$3.40 per square foot installed — more than fiberglass but with superior fire, moisture, and acoustic performance. Rigid mineral wool boards for continuous exterior insulation run higher. Get an instant itemized quote by ZIP code.

For fire resistance, sound dampening, and moisture tolerance — yes. Mineral wool is non-combustible, hydrophobic, and denser than fiberglass. It costs more but lasts longer and performs better in humid South Florida conditions. We recommend it per application after a free FLIR inspection.

No — mineral wool is hydrophobic. It repels water rather than absorbing it, so it won't lose R-value, won't mold, and won't sag if it gets wet. That makes it ideal for South Florida's humidity and for areas prone to moisture exposure.