Best Floor Insulation in New Orleans for New Construction

New Orleans, LA - Green Dream 1 - Case Study | Building Science Corporation

The best time to properly insulate your home is right at the very beginning—when you are building a new home.  At this time, your options for choosing the best floor insulation in New Orleans are limitless. Conserve energy by proper home insulation this will help you save energy during both the heating and cooling seasons.

Why Insulation is Best for New Construction

At the time of new construction, wall cavities and foundations are open.  This gives your contractor and floor insulation experts excellent time to choose from several insulation materials available.  They can work with you to explain all the available options and they can make recommendations based on our construction style and your budget.

Flooring Insulation Materials

You can lose 14% more heat if you do not install insulation when you are building your house.  When you install underfloor insulation in New Orleans, it is crucial that you lay a vapor barrier over the ground.

Smarterhomes reported that “research has shown that 0.4 liters of water vapor can evaporate from 1m2 of ground in 24 hours—that’s 60 liters per day on average for a 150m2 house—it can damage your insulation, and cause dampness problems in your house.”

When you have lain your vapor barrier, it’s time to lay your floor insulation.  Here are the different materials you can use:


  • Glass and Mineral Wools

This floor insulation material is made from fibers made from molten glass or other minerals.  It contains a large proportion of industrial mineral waste making it one of the most sustainable materials.

Low-quality glass wool can absorb moisture and become less effective as a floor insulator.  Glass wool also can’t be walked upon but can be used under a supporting timber floor.  They still remain very effective and widely used for insulation.

  • Polyester

You can get polyester insulation in blankets, segments, and loose-fill.  It is a synthetic material based on petrochemicals and can also come from recycled polyester fiber.  It is a cost-effective option with the same R values to fiberglass because they have a similar thickness.

  • Wool

The same wool that comes from sheep to make linen is also used as a floor insulation material in New Orleans.  They can be used as new or recycled from carpet manufacture offcuts.

Wool insulation comes in blankets, loose-fill, and segments, and is treated to make it resistant to pests, molds, fire, and slump.  It generally has a lower R-value than fiberglass for the thickness of the material.

  • Polystyrene Foam

This insulation material is used as a stable, rigid foam that can be cut or formed into different shapes and thicknesses.  Fire retardants are added when they are manufactured.

You can install polystyrene foam in rigid sheets, pods, and planks that you can place under concrete floor slabs or as an under-floor for suspended timber floors.

They are available in different R-values, so some are available with slightly higher R-values than fiberglass.

  • Fiberglass

Fiberglass insulation comes in the form of batts or rolls or can be blown.  It is the most common and widely available type of insulation material.  For New construction, 71% of all insulation used by builders is fiberglass.  They are available in different R-values, thickness, and cost.

Install the Best Material for Your Floor Insulation in New Orleans

Floor insulation helps your home trap heat and retain warmth during the cold winter months.  During the hot summer months, it can help keep cool air in.  

Underlayment for your flooring will save heat and deliver a quieter tread on your floors when walking to make your home more comfortable.

The best material for your flooring insulation in New Orleans depends on your type of floor, the type of subfloor that you are installing in between, and the amount of insulation that you need against sound and the elements.