Customer Concerns

  • High level of air infiltration.
  • 2nd. Floor too hot.
  • Condensation on AC grills in 2nd. Floor.
  • Uncomfortable sensation caused by humid air in 2nd. Floor, mainly in master bedroom.
  • Un-balanced air distribution over the house.

Type: Single-Family Residence, 4 bedrooms and 3 bathrooms Townhouse, three story building. This is an ocean sided property
Property Area: 4,000 ft2
Zipcode:  33133

Problems detected

The ceiling insulation was loose fill cellulose. The insulation was uneven and the average R-value was R-19. Multiples air infiltration spots were hidden by the insulation.

The air barrier of this home was compromised mainly on the ceiling of the master bedroom through big openings in roller shade windows’ boxes.

The air conditioning units were performing well, however they are very old, an upgrade is recommendable to bring the efficiency of each unit to a minimum of SEER: 16:00.

A Best Insulation’s Solutions

Removal of loose fill cellulose insulation.

Complete vacuum of ceiling surface to eliminate all kind of dust and contamination.

Repair all ceiling’s air infiltration, air sealing connections between attic space and wall cavities.

Seal air infiltration in the two air handlers’ closet, walls and ceiling.

Repair of duct system leakages.

Properly support flexible ductwork.

Repair all air exhaust pipes.

Install Spray foam insulation underneath roof deck.
Material: Spray Foam Insulation closed cell FOAM-LOK™ FL 2000. R-value: R-21.
The spray foam close cell was applied in knee walls, sky light boxes, soffits vents and all over the connections between roof and walls cavities.

Unwanted heat flow through un-insulated knee walls and sky light boxes.


The air distribution system showed some leakages, rugged duct flex and excessive sagging causing air flow restriction. The duct system was not properly supported. Air infiltration was detected in space between boots and ceiling sheetrock. Two air handler closets with holes, cracks and pipes penetrations.

Exhaust pipes were disconnected with cracks and kinks.



Comments: This house was a special challenge, because is under rough climate conditions such as wind, rain, humidity and salinity that may have serious consequences in the long run over the building structure. By installing closed cell spray foam insulation we were able to achieved several solutions at the same time.

  • The closed cell spray foam applied directly underneath of the roof deck creates a tight bond between the roof sheathing and the roof joist structure. (Reduces insurance costs in hurricane areas).
  • The home is more comfortable.
  • Reduction in energy costs.
  • Prevents wind-driven rain damage.
  • The air infiltration was strongly reduced.
  • Reduction up to 90% of moisture intrusion.
  • The A/C equipment removes humidity more efficiently from the house.
  • Better accessibility into the attic space for and repairs.

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