Attic Insulation in Delray Beach, FL
The attic is where South Florida homes lose the most conditioned air. Cardinal engineers attic insulation packages — spray foam, radiant barriers, and blown-in — that seal the thermal envelope and cut cooling costs by up to 40%. We start every job with a FLIR inspection to find exactly where your money is leaking.
Quick specs for Delray Beach.
Verified by a Building Scientist
Cardinal's insulation packages are specified and verified against building-science principles — not installed by guesswork. Every job carries a documented thermal proof report.
Building-Science Specified
Every insulation package is specified against building-science principles — conductive, convective, and radiant heat paths addressed in the correct order, not just more material.
FLIR Thermal Verification
A certified thermal-imaging protocol images the attic and ceiling plane before and after install. You see the documented proof the seal is real — not a claim.
R-Value & Depth Measured
Insulation depth is blown to land at the target R-value after settling, measured against Florida code and DOE guidance for IECC climate zone 2A — not estimated.
Specifications aligned with U.S. Department of Energy, ENERGY STAR®, and Florida Building Commission guidance for South Florida's hot-humid climate.
Installed to Florida code. Documented on every job.
Every Cardinal install in Delray Beach is specified to the Florida Building Code and IECC Climate Zone 2A requirements for hot-humid construction. We don't guess at R-value or skip air-sealing — we install to code, document it, and prove it with a FLIR thermal report.
R-30 ceiling insulation minimum
Florida Building Code, ResidentialThe Florida Building Code sets a minimum ceiling insulation value of R-30 for residential construction in South Florida. Cardinal installs to R-38 — above the code floor — and documents the installed depth with attic rulers and before/after photos on every job.
IECC Climate Zone 2A — hot-humid
International Energy Conservation Code · Zone 2ASouth Florida sits in IECC Climate Zone 2A, a hot-humid zone with specific insulation, air-sealing, and moisture-management requirements. Cardinal specs every package to Zone 2A guidance — closed-cell foam where moisture control matters, air-sealing before insulation, and ventilation pressure testing.
Air-leakage (blower door) limits
Florida Building Code — Air LeakageThe Florida Building Code limits air leakage in new residential construction, verified by blower-door testing. Cardinal air-seals top plates, penetrations, and the attic hatch before any insulation goes in — then proves the reduction with before-and-after blower-door readings when testing is scoped.
Permit & inspection compliance
Florida Building Code — PermitsWhere a permit is required, Cardinal pulls it and schedules the inspection. We install to code, document compliance, and hand you a depth-measurement and FLIR proof report so the inspector — and you — can verify the work before the balance is due.
Code-compliant by design. Cardinal installs to or above Florida Building Code minimums on every Delray Beach job — and hands you the documentation to prove it.
The numbers that matter.
Stops the #1 source of cooling loss in Florida homes.
FLIR-mapped — we find and seal every leak before and after.
Spray foam, radiant barrier, or blown-in — engineered to your home.
Cuts cooling costs up to 40% in sealed attics.
Reduces AC runtime and extends equipment lifespan.
Why Delray Beach homes lose energy.
Six failures we find in nearly every Delray Beach attic we inspect — each one quietly draining your cooling budget.
Attic depth below target
Most pre-2010 South Florida homes sit at R-11 to R-19 against a DOE-recommended R-30 to R-60 for this climate zone.
Unsealed ceiling plane
Top plates, chases, can lights, and bath fans add up to the equivalent of an open window in your attic.
Leaky attic ductwork
The U.S. Department of Energy estimates typical systems lose 20 to 30 percent of conditioned air through leaks.
Blocked soffit vents
Previous insulation jobs installed without baffles choke off intake ventilation, trapping heat and moisture.
Uninsulated attic hatch
Nearly universal in existing homes — and a twenty-minute fix that pays back immediately in comfort.
Uninsulated block walls
West and south exposures on CBS homes radiate stored heat into living space well past sunset.
What Delray Beach homeowners get.
Every Delray Beach insulation project ends with the same documented deliverable — no surprises, no upcharges, no shortcuts.
- Free on-site inspection with photographs of existing conditions
- Written scope: material, R-value per inch, installed depth, square footage
- Air sealing before insulation, every time — no exceptions
- Baffles installed to protect soffit intake ventilation
- Attic hatch weatherstripped and insulated to match
- Depth rulers set as documented verification of coverage
- Floor protection, containment, and a vacuumed work path
- Itemized invoice suitable for rebate and tax credit filing
Documented proof, not promises.
The U.S. Department of Energy estimates that proper insulation and air sealing can reduce heating and cooling costs by up to 20%. We document every install so you can verify the work meets the standard before you pay the balance.
DOE — Blown-In & Loose-Fill InsulationEvery attic insulation search, answered.
We systematically target every attic insulation keyword cluster across Boca Raton, Delray Beach, Boynton Beach, West Palm Beach, and Parkland — so whatever you searched to get here, this page is the answer.
Targeted Attic Insulation keywords
Modifier clusters we cover
Attic Insulation in Delray Beach — and every nearby city.
Same crew, same FLIR-verified process, same lifetime warranty — across the entire South Florida corridor.
Every insulation service in Delray Beach.
One local crew for the full envelope — spray foam, blown-in, radiant barrier, air sealing, and more across Delray Beach.
Attic Insulation in Delray Beach, FL.
Cardinal Insulation is a verified Boca Raton contractor serving Delray Beach homeowners with attic insulation backed by a 5.0★ Google rating and a lifetime workmanship warranty.
- 4263 NW 1st Ave, Boca Raton, FL 33431
- (561) 654-7698
- Open 24 hours · 7 days a week
- 5.0 stars on Google
Delray Beach neighborhoods we serve
Delray Beach ZIP codes covered
Attic Insulation where you actually live.
Cardinal keeps dedicated crews in Boca Raton and Delray Beach — so your attic insulation project is handled by specialists who know your neighborhood, your floor plan, and your ZIP code by heart.
Neighborhoods we seal in Boca Raton & Delray Beach
Named neighborhoods with dedicated install history — not a generic "we serve your area" claim. Tap any neighborhood for local proof.
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-3.2 – R-3.8 / 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-4.3 / 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 2A requirements.
A different category
of contractor.
We don't compete on price. We compete on the 15-point standard the industry skips — from FLIR thermal imaging to Building Scientist verification. Here's where the barrier falls.
No competitor named. The standards speak for themselves.
We put the risk on us, not you.
The barrier between you and comfort shouldn't be money or trust. We remove both — with financing, a lifetime warranty, and proof you can see.
Lifetime Workmanship Warranty
Every seal we install is guaranteed for the life of the home. If it ever fails, we fix it free — no fine print.
Flexible Financing
Spread the cost over 12–60 months with low-interest options. Most homeowners pay less per month than they save on cooling.
Same-Week Inspection
Quote today, FLIR inspection this week. We don't make you wait to start saving.
Documented Savings
Before-and-after infrared proof. You see the sealed shield in thermal imaging before you ever pay the balance.
Ready to remove the barrier?
60-second quote. No call required. No obligation.
The questions Boca, Delray & Boynton actually ask.
Florida code requires R-30 minimum, but we recommend R-38+ for South Florida's cooling load. With spray foam on the roof deck, the attic becomes conditioned space and the effective R-value jumps dramatically — we spec this per home.
Blown-in attic insulation runs $1,500–$4,000. Spray foam attic insulation runs $3,500–$9,500 but delivers far higher performance and air sealing. We quote both options instantly by ZIP code.
Often yes — if it's compressed, contaminated, or moisture-damaged. We inspect with FLIR first and recommend removal only when it actually improves the outcome. Never an upsell for its own sake.
The full service matrix.
Every insulation keyword, its own page.
Attic Insulation in every city we serve.
Dedicated landing pages for attic insulation in every city we serve — 43 cities across 8 counties.
Serving the Boca–Delray–Boynton corridor.
From the Boca inlet to Boynton's western estates — every hot zone below is a home we sealed this year. This is our local service area.
