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.

Deerfield Beach, FL · Broward County · Zone 2A

Rigid Foam Board Insulation in Deerfield Beach, Florida

Rigid foam board insulation delivers the highest R-value per inch of any non-foam material — R-3.8 to R-6.5 depending on type (XPS, EPS, or polyiso). Installed as continuous exterior insulation, it breaks thermal bridging at every stud, making it the code-compliant choice for new construction and the performance upgrade for retrofits. Cardinal installs rigid foam board across the corridor for exterior walls, foundations, and continuous insulation assemblies.

(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

Rigid Foam Board Insulation for Deerfield Beach Properties

rigid foam board insulation is the workhorse of Florida attic retrofits. For Deerfield Beach 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.

Deerfield Beach 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.

Rigid Foam Board Insulation at a glance

R-value: R-3.8 to R-6.5 per inch (type dependent)
Installed cost: $1.40 – $3.80 per sq ft installed
Service life: 50+ years
Available in: Deerfield Beach and throughout the surrounding area

Call (561) 654-7698

Types and Methods

EPS (expanded polystyrene)

The most affordable rigid foam, delivering R-3.8 per inch. Used in non-critical applications where cost matters most. It absorbs some water, so we avoid it in below-grade or high-moisture assemblies.

XPS (extruded polystyrene)

Mid-range rigid foam with better moisture resistance — R-5.0 per inch. Used for below-grade walls, foundations, and continuous exterior insulation where water exposure is a concern.

Polyiso

The highest R-value per inch of any rigid foam — R-6.5 per inch. Used for roof assemblies and continuous exterior insulation where maximum R-value in minimum thickness is needed. It loses some performance in cold temperatures but performs optimally in South Florida's heat.

Rigid foam is most effective as continuous insulation — installed on the exterior of the framing to cover every stud. In-cavity rigid foam leaves thermal bridges at the studs and reduces the effective R-value. We spec the right type and placement per assembly.

Benefits for Deerfield Beach Property Owners

Highest R-value per inch of any non-spray-foam material.
Continuous insulation breaks thermal bridging at every stud.
Moisture-resistant — won't absorb water or lose R-value if wet.
Lightweight, easy to cut, and fast to install on exterior walls and foundations.
Code-compliant continuous insulation for IECC and Florida Building Code.

Best Applications

Continuous exterior insulation on new construction
Foundation and below-grade wall insulation
Roof assemblies and tapered insulation
Breaking thermal bridging at every stud
Code-compliant IECC and Florida Building Code assemblies

How We Install It in Deerfield Beach

1Measure the wall or roof area and calculate board count and thickness
2Cut boards to fit tight against framing — no gaps at edges
3Fasten boards to the framing or substrate per manufacturer spec
4Tape all seams with compatible tape to create a continuous air barrier
5Seal around penetrations — windows, doors, and utility openings
6Flash the assembly per the cladding or roofing system requirements
7Verify continuity — no gaps, no thermal bridges, no voids

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

Rigid Foam Board Insulation FAQs — Deerfield Beach

Rigid foam board installation runs $1.40–$3.80 per square foot installed depending on type (EPS, XPS, or polyiso), thickness, and application. Polyiso delivers the highest R-value per inch. Get an instant itemized quote by ZIP code.

EPS is the most affordable but lowest R-value (R-3.8/in). XPS is mid-range with better moisture resistance (R-5.0/in). Polyiso delivers the highest R-value per inch (R-6.5/in) but loses some performance in cold temperatures. We spec the right type per application.

Stud framing creates thermal bridges — heat moves through the wood studs, bypassing cavity insulation. Continuous rigid foam on the exterior covers every stud, breaking the thermal bridge and delivering the full rated R-value. It's required by code for many new construction assemblies in Florida.