

It is only natural for a manufacturer to promote their product materials and design. For this reason we would like to present some facts that sometimes get overlooked.
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Two common insulation materials used in garage doors are polyurethane and
polystyrene. Polyurethane and polystyrene both have some distinct advantages
and some disadvantages. Both materials are commonly misrepresented and
misunderstood.
Polyurethane foams are used as insulation in garage door panels, roof
insulation on commercial buildings, wall insulation in newer high efficiency
homes, office chairs, refrigerators, freezers, walk in coolers, furniture and
in automobiles for dashboards, armrest’s, suspension bushings and many other
areas.
Polyurethane foam is a two-part system. It begins with two chemical blends that when mixed together expand and cure to fill the garage door panel. During the expansion, the foam flows and completely fills the inside of the panel and comes in complete contact with and becomes fully adhered to the steel skins of the garage door panel to form a composite structure that is of exceptional strength and rigidity.
Polyurethane foams are very stable when encapsulated (fully enclosed) inside a garage door section.
The polyurethane foam in a Haas garage door section is fully enclosed inside the steel skins and therefore protected from R-Value loss! This design puts the insulation properties of polyurethane foam way ahead of polystyrene foam for performance and value!
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Polystyrene foam board is used as insulation in garage door panels, houses, as vapor barriers, and most commonly as an inexpensive packing material.
Polystyrene foam board must be attached to or inserted into the door sections. The foam must be held in place by mechanical means or by bonding the foam to the door skins by using adhesives (glue).
Insulation
Testing
The factors that effect the insulation properties of a garage door depend on
the materials used, design of the sections and the air gaps (leaks) between the
section joints and the doorjambs. Inch for inch polyurethane foams surpass
polystyrene foams when it comes to insulation values.
The publication of R-Values is sometimes listed as the R-Values of the insulation only, sometimes referred to as “core value”. The insulation property of the installed door is the only true representation of the doors performance.
Thermal performance testing is performed using established test methods. Independent laboratories usually perform these tests. The test performed duplicates the normal installation conditions of a 10’-0” x 10’-0” Haas garage door.
The 10’-0” x 10’-0” doors were independently tested by Architectural Testing, Inc., York, PA. SEE CHART BELOW
Insulating with Polyurethane provides a superior product with higher insulation properties and a stronger unitized section.
|
Haas Model |
Section Thickness |
Calculated R-Value Sections Only |
Tested* R-Value (Installed Door) |
Heat Loss** (BTU/Hr.) |
Gas Cost*** ($ Per/Hr.) |
Gas Cost ($ Per/Day) |
|
600 SERIES |
1-3/8” |
13.45 |
5.88 |
850 |
$ 0.0018195 |
$ 0.044 |
|
700 SERIES |
1-3/4” |
16.18 |
6.67 |
750 |
$ 0.0016055 |
$ 0.039 |
|
800 SERIES |
3” |
25.80 |
8.34 |
600 |
$ 0.0012844 |
$ 0.031 |
|
* ANSI/NAGDM 105-1992 TEST, INDEPENDENTLY TESTED BY ARCHITECTURAL TESTING, INC, YORK PA., 10/97 |
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** Inside room temperature 68 deg. F and outside temperature 18 deg. F. |
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*** Gas cost based on $2.25 per 1000 c.f., at 80% efficiency. |
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Future Directions
We are continually working with suppliers to find ways to improve the
performance and environmental friendliness of our products.
Some information available neglects to mention that polyurethane foam can and is being recycled. The polyurethane industry has developed recycling programs for polyurethane foams.
One successful implementation of foam recycling reclaims the polyurethane foam materials for use as molded refrigerator linings.
The automotive industry is developing programs to recycle the majority of all plastics (including foam) used in automobiles. A major chemical company is in the process of constructing a recycling facility for polyurethane foam materials that will be capable of recycling over 2 million pounds of urethane per year.
Haas
Door Company is committed to providing the industry with quality products that
are safe for our customers and to the environment.
When comparing doors ask to see the ANSI/NAGDM 105-1992 test results for installed doors. When you compare the insulation properties of installed doors you will see that Haas polyurethane foam filled products are far superior!
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Haas Door Company · Wauseon, Ohio |