Home Improvement

What is the purple spray foam insulation?

With WALLTITE®, BASF can make a big difference in both areas. The purple, closed-cell foam is simply sprayed on, cures almost instantly and creates a seamless, airtight insulation for walls, floors and internal roofs.

Why is spray foam different colors?

The color of spray foam insulation will change over time, and according to Dakota Spray Foam Insulators, you could dye the foam or paint it if a certain color is desired.

What is purple insulation?

Purple spray foam insulation is a closed cell product. This type of foam forms a rigid, solid insulation layer once it has set, and is beneficial for binding the structure of your home (gluing it together). This can be great for homes that need that extra bit of structural strength.

What are the disadvantages of spray foam insulation?

List of the Cons of Spray Foam Insulation

  • Spray foam insulation does not always fill every possible cavity. …
  • Spray foam insulation might encourage water damage for some homeowners. …
  • Spray foam insulation can sometimes shrink. …
  • Spray foam insulation requires a lot of experience to get it right.

What spray foam has the highest R-value?

The foam (usually polyurethane) is sprayed to fill cracks and gaps in the attic to form a hermetically sealed barrier. Spray foam provides the highest R-value – while open cell spray foam has about an R-value of 2.2 to 3.5 per inch, closed cell spray foam has about 6-7 per inch.

What color should spray foam be?

The foam is light yellow to white in color when new. As it is exposed to light over time the surface will yellow. You could dye it, but it will never stay the color that you do. Its best to paint or coat the foam if a certain color is desired.

What is pink insulation used for?

Fiberglass insulation is used in homes and other buildings to block sound and heat transfer. It is almost always pink in color. This insulation is colored artificially to make it recognizable to consumers.

What are the different types of spray foam insulation?

There are three primary types of spray foam that can be used for insulation and other specific purposes:

  • High-Density. 3 lbs./cubic ft., closed-cell foam. R-Values start at 5.5 per inch* …
  • Medium-Density. 2 lbs./cubic ft., closed-cell foam. R-Values start at 5.7 per inch* …
  • Low-Density. 0.5 lbs./cubic ft., open-cell foam.

What is Wall Tite?

WALLTITE® is a spray polyurethane foam based airtight insulation system – an ideal solution in improving the energy efficiency of various types of building.

How much is a bag of insulation?

The cellulose insulation cost per bag is typically around $30 to $40. It is made with recycled materials like newspaper and cardboard. The higher the R-value, the more you’ll pay for each project.

Is 2 inches of spray foam enough?

Now generically speaking, we usually recommend open cell spray foam to be 6- to 10-inches on a roof deck or ceiling and 3-inches in the walls. Closed cell spray foam should be 4- to 5- inches on the ceiling and 2- to 3-inches in the walls.

What is the R-value of 4 inches of spray foam?

Spray Foam Insulation R-Value

Open cell spray foam insulation is R-3.6 to R-3.9 per inch. This R-Value is normal for open cell spray foam.

What R-value is 2 inches of spray foam?

R-Value In 2 Inches Of Spray Foam

The R-value ranges from R-3.5 to R-3.6 per inch. The filling of a 2×4 cavity yields about an R-13.

What is the difference between open cell and closed cell spray foam?

Open cell foam is full of cells that aren’t completely encapsulated. In other words, the cells are deliberatly left open. This makes the foam a softer, more flexable material. Closed cell foam is made up of cells that are, as the name suggests, completely closed.

What is the best R-value?

Depending on where you live and the part of your home you’re insulating (walls, crawlspace, attic, etc.), you’ll need a different R-Value. Typical recommendations for exterior walls are R-13 to R-23, while R-30, R-38 and R-49 are common for ceilings and attic spaces.

What is the R-value of pink insulation?


What is a good R-value for attic?

Recommended insulation levels for retrofitting existing wood-framed buildings

Zone Add Insulation to Attic
Uninsulated Attic Existing 3–4 Inches of Insulation
1 R30 to R49 R25 to R30
2 R30 to R60 R25 to R38
3 R30 to R60 R25 to R38

What is the R-value of closed-cell spray foam?

R-6.5-7 per inch

The R-value of closed-cell foam is R-6.5-7 per inch. Contractors often use it to insulate under slabs, ceilings, walls, and roofs. It performs better than other insulation types.

What is the R-value of spray foam in a 2×4 wall?

Open-cell spray foam has an R-value of about R-3.7 per inch, while closed-cell spray foam has an R-value that may be as high as R-6.5 per inch. If you want to install spray foam in a stud wall, and price is no object, then it would seem to make sense to specify closed-cell spray foam, right?

What is the thinnest insulation with highest R-value?

Aerogel insulation

Aerogel insulation offers the highest R-value of any insulating material at less weight and thickness—ideal for construction, refineries, pipelines, and thin-gap thermal barriers.

Does spray foam cause mold?

Foam building insulation, in both spray foam and foam board products, is resistant to mold growth but as we will explain here it is not absolutely mold-roof, and on occasion we do find mold growth on the surface of even closed-cell foam, in open-celled foam (rare), and on th surface of EPS and other foam insulating …

Which is better spray foam or fiberglass insulation?

Spray foam insulation has a higher R-value than fiberglass, making it a better insulator. Another difference between them is that spray foam is watertight while fiberglass cracks under moisture. However, installing spray foam requires a professional while fiberglass is easy to install yourself.

Where should you not use spray foam insulation?

When NOT to Use Spray Foam Insulation

  1. For areas that are too close to electrical boxes:
  2. For areas too close to ceiling light boxes:
  3. Open-cell spray foam on your roof:
  4. For closed-cavity spaces:
  5. If you have a history of skin, respiratory, or asthma problems:

How long does spray foam insulation last?

Typical Insulation Lifespan

The International Association of Certified Home Inspectors states that spray foam insulation, wrap tape and housewrap insulation can last for more than 80 years. At the same time, cellulose, loose-fill, foamboard, loose fill and rock wool insulation can last up to 100 years.