"Thank you Perkins Inc. for what your company offers a superb, hi-quality service that saves DFW homeowners money, energy and reduces our impact on the environment as well! Perkins Inc. used hi-tech equipment to rate my home for energy loss and air infiltration problems. They repaired every issue they could find until my house had an acceptable rating."

Will Raymond
Carrollton Tx.

"The service provided by Perkins Inc. far exceeded my expectations. They were professional, informative and highly skilled. They gave me excellent advice and rescued me from making an uninformed decision. I'm so thankful I called them rather than an insulation company who would have come in to simply spray insulation. I saved so much more money than I would have if I had not contacted Perkins. I will call them again when I need more services. Thanks guys!"

Connie Freeman
Dallas Tx.

"Perkins Inc. has made drastic improvements to my household, saving me money and making my home much more eco-friendly. The attic insulation job they preformed on my home combined with the home weatherization and duct sealing made my home much warmer in the winter and much cooler in the summer. Their services are top notch and any home owner/renter should take advantage of what Perkins Inc. can do for your home!"

Chris Graves
Carrollton Tx.

Dallas Professional Spray Foam Insulation Contractor

Dallas spray on foam insulation: Open Cell and Closed Cell Applications

Spray foam insulation

also known as polyurethane spray foam insulation is often categorized as either "open-cell" or "closed-cell". Spray polyurethane foam (SPF) is a highly-effective and widely used insulation and air sealant material. Spray foam insulation can be sprayed into walls, ceilings, floors, crawls paces and attics to reduce energy waste and reduce heating and cooling costs in both new and existing homes. The main differences between open and closed cell foam are moisture permeability, R-value, and flexibility. Closed cell foam is an air barrier & a moisture vapor barrier. This means that it will not allow moisture to pass through the foam. Open cell foam is an air barrier at a specific thickness but is not a moisture vapor barrier, and will allow moisture to pass. The best foam to use should be determined by the application not the R-value.

Open Cell Spray On Foam Insulation:

Open-cell spray foam (JM ocSPF) is a low-density, non structural insulation that offers a high yield while still providing important air isolation, versatile R-values, excellent acoustical performance. Open-cell foam costs slightly less for the same thickness, but offers lower per-inch R-values than closed-cell products. In some instances, this is a disadvantage, but where thickness is less relevant, or where higher R-values are not needed, then open-cell can provide the better choice. Because of the open cell structure, open-cell foam allows some vapor to pass through, making it a good choice in hot, humid climates, and under roof sheathing, such as in conditioned attics, where water vapor caught between insulation and sheathing could promote wood rot. When installed at a thickness of 1" inch, it provides an R-value of 3.8, R-13 at 3.5" inches, and R-19 at 5.5" inches.

Open Cell Spray Foam Benefits:

Spray in place insulation and air barrier
Vapor permeable
Will accommodate long term creep and seasonal movements
Typical R-value of 3.6 per inch
Increase comfort & efficiency
Suitable for interior applications only
Soft open cell structure allows for greater sound absorption versus closed cell structure

Open Cell Applications:

Underside Of Roof Deck (Unvented Attic)
Exterior And Interior Walls
Attic Floor (Vented Attic)
Knee walls
Cathedral ceilings
Crawl Spaces

Closed Cell Spray On Foam Insulation:

Closed Cell polyurethane spray foam is among the most efficient insulating materials commercially available, with R-values commonly around 6.0 per inch. Closed-cell foam incorporates an insulating gas that is retained within the cells (foam "blowing agent"), which leads to the highly efficient insulating properties of the material. It provides both a vapor and air barrier and offers an aged R-value of a whopping 6.0 up to 6.5 per inch. The dense polyurethane foam insulation is extremely durable, expanding and fully adhering to surfaces, strengthening the structure of a home. It provides incredible thermal performance and can be installed in areas that would be inaccessible or difficult for other forms of insulation