What is Dow board used for?

What is Dow board used for?

For use as general purpose insulation for roofing, wall and foundation applications.

Is Dow Board closed cell?

Styrofoam™ was invented by Dow more than 50 years ago and identified by the distinctive Blue™ color. Dow invented a process for extruding polystyrene to achieve a closed cell foam that resists moisture.

What is the R-value of Dow blue board?

Blue Board can be used both on the exterior and interior walls to give you a continuous insulation barrier that can increase the effective R-value of the wall by up to 20%.
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Use:

Who makes XPS foam?

DuPont™ Styrofoam™

DuPont™ Styrofoam™ Brand Cavitymate™ Ultra Extruded Polystyrene Insulation is an XPS foam insulation board with an R-value of 5.6 per inch. It features square edges on all four sides that makes it easy to fit between brick ties in cavity wall applications.

Which is better EPS or XPS?

In general, when comparing EPS and XPS board densities, the compressive strength of XPS is greater than that of EPS. For EPS to achieve the same compressive strength as XPS, the density of the foam would need to be increased, often resulting in a greater thickness of board being required.

Where can I use XPS insulation?

XPS provides increased stiffness and rigidity, making it suitable for use on roofs, below grade, below slab, and other applications.

Which foam board insulation is best?

Polyisocyanurate
Polyisocyanurate: Known as polyiso for short, polyisocyanurate foam has the highest R-value per inch (R-6.5 to R-6.8) of any rigid insulation.

What is the highest R-value foam board?

Polyisocyanurate: Known as polyiso for short, polyisocyanurate foam has the highest R-value per inch (R-6.5 to R-6.8) of any rigid insulation. This type of rigid foam usually comes with a reflective foil facing on both sides, so it can also serve as a radiant barrier.

What is the difference between blue and pink foam board?

Both are manufactured using the same process and contain similar chemical components. The two products also have the same insulating power. However, blue foam boards are manufactured by Dow Chemical Co. whereas the pink foam boards are manufactured by Owens Corning company.

What is the best foam board?

Foam board made from polyisocyanurate (polyiso) generally offers the best insulation capacity and 6.5 per inch.

Does XPS foam absorb water?

FOAMULAR® XPS products have an R-value of 5 per inch of thickness, and due to their closed cell structure they resist water absorption, maintaining a high R-value for reliable long term service.

Is XPS waterproof?

Technically, EPS and XPS rigid foam board insulation are considered to be water-resistant. A product branded as waterproof means that it offers complete impermeability, even if permanently immersed in water.

Does XPS insulation absorb water?

Independent research2 has shown that over time XPS will actually absorb and retain more moisture than EPS resulting in a significant decrease in R-value. One of the studies showed XPS retained 19% water absorption compared to 5% for EPS after being buried below grade for 15 years.

Is XPS foam toxic?

Most rigid polystyrene foam insulation boards, both the EPS and XPS types, contain the toxic flame retardant HBCD, which was banned by the European Union in 2015.

What is the thinnest insulation with highest R-value?

Thermablok® Aerogel is a revolutionary advancement in thermal technology offering the thinnest insulation available to prevent thermal and cold bridging. Classed as a Super Insulation, Aerogel has the highest insulation value of any known material with the lowest thermal conductivity value of any solid (0.015W/mK).

What is the difference between pink and blue foam board?

What is the most efficient insulation?

Spray foam insulation
Fiberglass insulation still allows for airflow into the attic. Spray foam insulation is the most energy-efficient insulation to create an air barrier in the attic. Certain spray foams can expand up to 100 times its original size, so it fills all of the nooks and crannies in the attic.

What happens when XPS gets wet?

Is XPS board waterproof?

You may recognize XPS foam board upon seeing its pink, green, or blue smooth-faced surface. Its construction resists water penetration — the thicker the material, the better it repels water. With an R-value of R5 per inch, it’s a cost-effective insulating material when constructing a basement with limited space.

How thick is XPS?

Product Data Table

Does XPS foam off gas?

XPS is Rated at R5 per inch, but it will off-gas and lose some insulation performance over time – especially below-grade and when tested in real-world applications.

What is the healthiest type of insulation?

5 Healthiest Insulation Options For Your Home

• Cork. When it comes to healthy insulation, cork tops the list, at least according to a report done by Energy Efficiency For All.
• FIberglass.
• Cellulose.
• Recycled Cotton.
• Sheep’s Wool.

What are the downsides of aerogel?

Disadvantages: Increased density (typically about one-third to one-half the density of water) Decreased clarity (from translucent to foggy to opaque) Decreased surface area (by about half)

What color is XPS insulation?

Due to the manufacturing process, XPS insulation is typically available only in standard dimension square or rectangular boards. Brands of XPS are generally recognizable by the color of the insulation: blue made by Dow, pink made by Owens Corning, green made by Kingspan, etc.

What is the thinnest insulation with the highest R-value?

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.