Transcript Slide 1

This Online Learning Seminar is
available through a professional
courtesy provided by:
Fiberglass Doors:
Gateways to Sustainable Design
Plastpro, Inc.
5200 W. Century Blvd 9F
Los Angeles, CA 90045
Toll-Free: 800.779.0558
Fax: 310.693.8620
Email: [email protected]
Web: www.plastproinc.com
START
©2010 Plastpro, Inc. The material contained in this course was researched, assembled, and produced by Plastpro, Inc. and remains its property.
“LEED®” and related logo is a trademark owned by the U.S. Green Building Council and is used with permission.
Fiberglass Doors: Gateways to Sustainable Design
Presented By:
Plastpro, Inc.
5200 W. Century Blvd 9F
Los Angeles, CA 90045
Description:
Provides an overview of the components, green features, and testing standards of fiberglass entry
doors, as well as a comparison of the properties between fiberglass, wood, and steel doors.
The American Institute of Architects · Course No. AEC440 · This program qualifies for 1.0 HSW/SD/LU hour.
AEC Daily Corporation is a Registered Provider with The American Institute of Architects Continuing Education Systems (AIA/CES). Credit(s) earned on
completion of this program will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available
upon request. This program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or
construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in
any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.
Construction Specifications Institute · Course No. CSI-A0343; CEUs 0.1 · This program qualifies for HSW credit.
This program is a registered educational program with the Construction Specifications Institute of Alexandria, VA. The content within the program is not
created or endorsed by CSI nor should the content be construed as an approval of any product, building method, or service. Information on the specific
content can be addressed at the conclusion of the program, by the Registered Provider.
AEC Daily is a Registered Provider with the Construction Specifications Institute Construction Education Network (CEN). Credit earned for completing this
program will automatically be submitted to the CSI CEN. Completion certificates can be obtained by contacting the Provider directly.
This logo and statement identify Provider programs registered with CSI CEN and are limited to the educational program content.
Slide 2 of 58
AEC DAILY CORPORATION
Fiberglass Doors:
Gateways to Sustainable
Design
ID#0090005074
1
Slide 3 of 58
Learning Objectives
Upon completing this course, you will be able to:
•
explain the physical and structural components of fiberglass entry doors that
combine to create a durable, long-lasting product
•
explain the energy performance rating system of the National Fenestration Rating
Council (NFRC)
•
discuss the sustainable aspects of fiberglass doors and the relationship to various
green programs, such as ENERGY STAR® and LEED, and
•
contrast the environmental, structural, and aesthetic performance among
fiberglass, wood, and steel doors.
Slide 4 of 58
Table of Contents
Components of Fiberglass Doors
National Fenestration Rating Council & ASTM Testing
ENERGY STAR® & LEED®
6
21
39
Comparison of Door Material Options
51
Summary
57
Slide 5 of 58
Components of
Fiberglass Doors
Slide 6 of 58
Components of Fiberglass Doors
Introduction
Fiberglass entry doors were introduced as a
solution to steel doors in the 1980s, when
homeowners wanted the insulating values of a
steel door with the look of real wood.
In the last 30 years, fiberglass door
manufacturers have improved their product
offerings to include better safety and durability
features, as well as improved aesthetics.
Today’s fiberglass doors can be machined to
include many panel and lite configurations to
satisfy a range of tastes and styles.
©2010 • Table of Contents
Slide 7 of 58
Components of Fiberglass Doors
Introduction
Not all fiberglass doors offer the same features
and benefits. First, you’ll have to identify what
you want and need from your door, then
identify which doors meet those requirements.
In this course, we’ll take a look at fiberglass
doors and how they contribute to the
sustainability of a home.
We’ll not only look at the components and
characteristics of the door, but also how they
might apply to LEED® for Homes™.
Slide 8 of 58
Components of Fiberglass Doors
Components
A fiberglass door consists of a door skin made of fiberglass, polyurethane foam
insulation, rails, stiles and frame. A review of each component is presented in
subsequent slides.
Stiles
Fiberglass Reinforced Skin
Polyurethane Core
Top and Bottom Rails
Slide 9 of 58
Components of Fiberglass Doors
Fiberglass Skin
The skin of fiberglass doors may be made of SMC (sheet molding compound), a thermoset molding plastic sheet material made of glass fibers, resins, catalyst, fillers and
pigments.
The SMC skin provides structural strength and some impact protection. Some fiberglass
door manufacturers offer high-impact compression molded skins that not only prevent
water penetration, but will not splinter, dent, warp, rot or rust.
In terms of maintenance, these surfaces are easy to stain, paint and clean.
Slide 10 of 58
Components of Fiberglass Doors
Fiberglass Skin
The skin is also where the design, such as wood grain style and panel type, is
configured. Fiberglass door popularity is driven a great deal by the design versatility.
SMC-type doors are able to copy the fine-grained detail of a wood door and be painted
to resemble a number of species of wood.
White Oak
Fir
Mahogany
Rustic
Woodgrain
Smooth Skin
Slide 11 of 58
Components of Fiberglass Doors
Stiles & Rails
The stiles and rails of fiberglass doors may be
made of steel, wood or composite material.
Composite, a mixture of PVC (polyvinyl
chloride) and wood flour, provides maximum
durability and moisture protection.
Composite rails and stiles expand the life term
of a door unit, as the door does not have to be
replaced as often as a wood door.
Slide 12 of 58
Components of Fiberglass Doors
Stiles & Rails
Some fiberglass doors feature full-length
composite stiles and rails.
This provides non-porous protection that
prevents water from leaking into the door and
stops build-up of mold.
Slide 13 of 58
Components of Fiberglass Doors
Polyurethane Core
Once the skin has been assembled with the rails and stiles, the door is filled with
polyurethane foam.
The polyurethane core provides strength, insulation, and soundproof capabilities that
surpass the capabilities of wood and steel. In fact, a quality fiberglass door provides six
times more insulation value than a wood door.
To specify a fiberglass door for a sustainable home, the foam must be CFC-free to
meet U.S. environmental standards.
Slide 14 of 58
Components of Fiberglass Doors
Frames
Traditionally, doors are hung in wood or steel
frames, but recent trends indicate increased
interest in frames that are made of composite
materials.
Reasons for the growing popularity?
Wood and steel frames are subject to the same
problems as doors made of those materials.
Wood frames can warp, rot and crack, while
steel frames can rust and dent.
Composite Frame
Wood Frame
Slide 15 of 58
Components of Fiberglass Doors
Frames
Conversely, composite frames made with
closed-cell technology can withstand
the damaging effects of harsh weather
conditions.
Closed-cell structure technology ensures the
doorframe and molding will not absorb or wick
moisture and prevents warping, rotting and
splitting.
Furthermore, composite frames are easily
machined, use less wood, and have twice the screwholding power of traditional wood frames.
©2010 • Table of Contents
Slide 16 of 58
Components of Fiberglass Doors
Frames
To accommodate a range of design
requirements, some fiberglass door
manufacturers offer full composite frames to
match arch or radius-top doors.
Whatever the style, when specifying, look for
fiberglass doors made with full-length
composite frames. They will be more durable
than those made with only a few inches of
composite material that are finger-jointed to
wood at the bottom of the frame.
Slide 17 of 58
Components of Fiberglass Doors
Frames
Composite frames are made of 100% wood flour and PVC material. In terms of green
building, look for composite frames with at least 10% recyclable material, that are
made of post-consumed wood waste.
Slide 18 of 58
Components of Fiberglass Doors
Quality Checklist
While the top and bottom rails of
this fiberglass door are made of
composite material, the stiles on
both sides are made of wood; in
time, they will rot and warp when
exposed to moisture or rain. Take
a close look at the core; you will
notice that it has voids. The core
of a strong fiberglass door should
not have air holes or bubbles, as
this picture is showing. The foam
injected should be evenly spread
out through the door for a
consistent density. Further, only
one lock may be placed at a
specific location due to limited
hardware options.
Slide 19 of 58
Components of Fiberglass Doors
Quality Checklist
This is an image of a fiberglass
door that has consistent foam
density in the core, and composite
rails and stiles with full-length LVL
(laminated veneer lumber) that
allows one or more locks to be
placed at any level of height along
the stile. For added strength and
stability, some manufacturers add a steel
reinforcement.
Adding composite frames insures the
longevity of the entire door system.
A number of matching grain options have
become available so an integrated finish is
possible.
©2010 • Table of Contents
Slide 20 of 58
National Fenestration
Rating Council &
ASTM Testing
Slide 21 of 58
National Fenestration Rating Council & ASTM Testing
Introduction
Now that the components of fiberglass doors
have been reviewed, this next section explores
the sustainable aspects relating to fiberglass
doors, such as:
• NFRC (National Fenestration Rating Council)
• ASTM testing, and
• fire rating.
Slide 22 of 58
National Fenestration Rating Council & ASTM Testing
NFRC
What is the connection between ENERGY STAR and the National Fenestration Rating
Council?
The energy performance of all ENERGY STAR qualified windows, doors, and skylights
must be independently tested and certified. This is done in accordance to testing
procedures established by the NFRC. Although NFRC tests several product properties,
ENERGY STAR qualification for doors is based on two main performance measures:
U-factor and solar heat gain coefficient (SHGC) ratings.
The NFRC is a third-party, non-profit organization that provides certified rating and
labeling programs that enable consumers to compare the energy and performance
features of windows, doors, and skylights.
Slide 23 of 58
National Fenestration Rating Council & ASTM Testing
NFRC
The energy performance ratings of the
following categories are indicated on NFRClabeled products:
•
•
•
•
•
•
U-Factor
R-Value
Solar Heat Gain Coefficient (SHGC)
Visible Transmission (VT)
Air Leakage (AL)
Condensation Resistance (CR)
Wood, steel, fiberglass and composite entry
doors can all have the NFRC label. Be sure to
check the performance measures on the door
to ensure they meet your requirements.
Slide 24 of 58
National Fenestration Rating Council & ASTM Testing
NFRC
U-Factor:
Measures how well a product prevents heat from escaping; a lower U-factor
indicates a more energy efficient product. U-factor values generally range from 0.25
to 1.25.
R-Value:
Measures the resistance to heat loss; the higher the R-value, the lower the heat loss.
U-factors and R-values are reverse factors of each other.
Solar Heat Gain Coefficient:
Measures how well a product blocks heat from the sun; the lower the SHGC, the
more efficient the product. SHGC is measured on a scale of 0 to 1; values typically
range from 0.25 to 0.80.
Slide 25 of 58
National Fenestration Rating Council & ASTM Testing
NFRC
Visible Transmittance:
Measures how much light comes through a product; the higher the VT number, the
more potential for daylighting. VT is expressed as a number between 0 and 1.
Air Leakage:
Measures the cubic feet of outside air passing through a square-foot of window area
into a home or building; the lower the AL measurement, the less air will pass
through the product. AL rates typically fall in a range between 0.1 and 0.3. AL is an
optional rating; manufacturers can choose not to include it on their labels.
Condensation Resistance:
Measures the ability of the product to resist formation of condensation on the
interior surface of the product; the higher the CR rating, the better the product is at
resisting condensation build-up. CR is expressed as a number between 1 and 100.
Slide 26 of 58
National Fenestration Rating Council & ASTM Testing
ASTM Testing
There are important ASTM test results to consider when specifying a door for your
projects. A review of these standards is presented in subsequent slides.
ASTM D 1758 - Standard Test Methods for Mechanical Fasteners in Wood
This is a standard procedure for measuring the resistance of wood and wood-based
materials to direct withdrawal of nails, staples and screws. The test method
determines the effects of various factors on the strength and efficiency of a fastened
joint. The minimum load required is 450 pounds. Some fiberglass doors have tested at
over 850 pounds.
www.astm.org/Standards/D1758.htm
Slide 27 of 58
National Fenestration Rating Council & ASTM Testing
ASTM Testing
ASTM D 1666 - Standard Test Methods for Conducting Machining Tests of Wood and
Wood-Base Materials
Matching tests determine the working qualities and characteristics of different species
of wood encountered in commercial manufacturing practices. This test compares
results of different species with respect to woodworking machine operations, and
evaluates their potential suitability for certain uses. Fiberglass doors can be machined,
like wood, and have passed this test for sawing, planing, routing, boring, drilling and
chiseling.
www.astm.org/Standards/D1666.htm
Slide 28 of 58
National Fenestration Rating Council & ASTM Testing
ASTM Testing
ASTM E 283 - Standard Test Method for Determining Rate of Air Leakage Through
Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences
Across the Specimen
This is a standard test that measures air leakage of a residential wall assembly with
specified air pressure differences at ambient conditions. The air pressure differences
acting across a building envelope vary greatly. The factors affecting air pressure
differences and the implications or the resulting air leakage are relative to the
environment within buildings. The intention is to measure leakage associated with the
assembly, not the installation.
www.astm.org/Standards/E283.htm
Slide 29 of 58
National Fenestration Rating Council & ASTM Testing
ASTM Testing
ASTM E 331 - Standard Test Method for Water Penetration of Exterior Windows,
Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference
This is a standard procedure for determining the resistance to water penetration under
uniform static air pressure differences. This test determines the resistance of exterior
windows, curtain walls, skylights, and doors to water penetration when water is
applied to the outdoor surface and exposed edges simultaneously, with a uniform static
air pressure at the outdoor surface higher than the pressure at the indoor surface.
Doors that pass these tests will help increase the energy efficiency of the home.
www.astm.org/Standards/E331.htm
Slide 30 of 58
National Fenestration Rating Council & ASTM Testing
ASTM Testing
ASTM E 330 - Standard Test Method for Structural Performance of Exterior
Windows, Doors, Skylights and Curtain Walls by Uniform Static Air Pressure
Difference
This is a standard for determining the structural performance of exterior doors under
uniform static air pressure. The purpose is to only evaluate the structural performance
associated with the specified test specimen, and not the structural performance of
adjacent construction.
www.astm.org/Standards/E330.htm
Slide 31 of 58
National Fenestration Rating Council & ASTM Testing
ASTM Testing
ASTM E 547 - Standard Test Method for Water Penetration of Exterior Windows,
Skylights, Doors, and Curtain Walls by Cyclic Static Air Pressure Difference
This tests for the resistance to water penetration under cyclic static air pressure
differences. It measures the resistance of exterior windows, curtain walls, skylights,
and doors to water penetration. Performance results will depend on the construction
quality and proper installation of the wall and its components.
www.astm.org/Standards/E547.htm
ASTM F 1450 - Standard Test Methods for Hollow Metal Swinging Door Assemblies
for Detention Facilities
This is the test for hollow metal swinging doors in detention facilities. It helps
determine how much abuse a door can handle and helps to improve safety measures in
detention facilities.
www.astm.org/Standards/F1450.htm
Slide 32 of 58
National Fenestration Rating Council & ASTM Testing
ASTM Testing
ASTM E 1886 - Standard Test Method for Performance of Exterior Windows, Curtain
Walls, Doors, and Impact Protective Systems Impacted by Missile(s) and Exposed to
Cyclic Pressure Differentials
This tests the impact resistance of exterior fenestration products. It identifies products
that can withstand impact of large and small objects that would be similar to windborne debris during severe weather. This test shows to what degree a door can remain
unbreached during a windstorm.
www.astm.org/Standards/E1886.htm
Slide 33 of 58
National Fenestration Rating Council & ASTM Testing
ASTM Testing
Additional testing may be required in certain applications. For example, in commercial
applications, exterior doors may be required to meet specific acoustical requirements.
ASTM E 1425 - Standard Practice for Determining the Acoustical Performance of
Windows, Doors, Skylight, and Glazed Wall Systems
This is the standard test procedure for determining air leakage relative to sound
transmission of windows, doors and skylights. Acoustical products could require lower
air leakage rates to achieve the desired acoustical performance. The use of specific
sealing components to achieve a given sound rating can also affect operating or
latching capabilities of a fenestration product.
http://www.astm.org/Standards/E1425.htm
Slide 34 of 58
National Fenestration Rating Council & ASTM Testing
ASTM Testing
A comparison of the STC (Sound Transmission Class) rating of steel, wood, and
fiberglass is presented below.
Slide 35 of 58
National Fenestration Rating Council & ASTM Testing
Blower Door Tests
Strong Walls / Blower door results analysis
One way to determine the air tightness of a
home is with a blower door test. This test
identifies where the home is not sealed
well, and where air is leaking into the
home.
Typically, leaks occur at fenestration, as
well as at plumbing and lighting fixtures.
This chart compares blower door test results on the same home. The Reference Case
(in red) shows the average cost to operate a home that has been sealed well. Indicated
in green, the High ELA (effective leakage area) case shows approximate costs to
operate a home that has more air leakage. Insulating or effectively filling these
penetrations can result in energy and cost savings.
Slide 36 of 58
National Fenestration Rating Council & ASTM Testing
Fire Testing
Wood, steel, and fiberglass entry doors can be
fire rated. Fire ratings indicate how long the
door can withstand fire.
Fire-rated doors are often specified for light
commercial, multi-family, and residential
projects.
Warnock Hersey, a nationally recognized
testing laboratory, tests and certifies building
products to ASTM and other relevant testing
codes.
Slide 37 of 58
National Fenestration Rating Council & ASTM Testing
Fire Testing
Warnock Hersey Mark signifies that the product’s manufacturing site(s) undergo
periodic follow-up inspections to ensure ongoing compliance of the originally certified
product.
Testing Standards for WH Mark:
Intertek tests products to applicable ANSI, UL, ASTM, CCMC, CSA, EPA, ICBO, and ULC
standards. The WH mark is a certification mark issued by Intertek. The WH mark
demonstrates product compliance to safety and/or performance standards.
Slide 38 of 58
ENERGY STAR & LEED
Slide 39 of 58
ENERGY STAR & LEED
Introduction
This section of the course discusses the
relationship of fiberglass doors to the ENERGY
STAR and LEED programs.
It is important to note that some fiberglass
entry doors meet or exceed the prescriptive
criteria established by the International Energy
Conservation Code (IECC) and are ENERGY STAR
qualified for all climate zones when selected
with a low-E glass package.
Slide 40 of 58
ENERGY STAR & LEED
ENERGY STAR
Wood, steel, and fiberglass doors can all carry
the ENERGY STAR logo.
ENERGY STAR qualified doors lower energy bills
by reducing air leakage into and out of the
home or building. As a result, the interior
environment is kept consistently comfortable.
Doors are rated as a whole unit, so it’s
important to be aware that different door
configurations will affect the door’s U-factor
and solar heat gain coefficient. For example, a
door with more glass will not perform the same
as a fully insulated door without glass.
Slide 41 of 58
ENERGY STAR & LEED
ENERGY STAR
ENERGY STAR requirements for windows and doors have different performance
measures based on climate zone and glazing level (refer to next slide).
For example, in Northern climates, the U-factor is required to be lower, meaning the
door is required to be more resistant to heat flow and has better insulation value.
For doors with glass, the glass must also be considered in the door’s performance. For
example: Low-E glass will perform better than clear IG.
Slide 42 of 58
ENERGY STAR & LEED
ENERGY STAR
Source: www.energystar.gov
Slide 43 of 58
ENERGY STAR & LEED
ENERGY STAR
To specify an ENERGY STAR door is not
sufficient.
You must be specific to the product, to ensure
that it meets the requirements of specific
climate zones.
Some fiberglass doors are more likely to meet
standards in all climate zones.
Check with the manufacturer to see which
products meet the ENERGY STAR requirements
and can contribute to the available tax credits.
Slide 44 of 58
ENERGY STAR & LEED
Overview: LEED® Certification
The U.S. Green Building Council (USGBC) is a 501(c)(3) non-profit organization composed
of leaders from every sector of the building industry working to promote buildings and
communities that are environmentally responsible, profitable and healthy places to live
and work. USGBC developed the LEED (Leadership in Energy and Environmental Design)
green building certification program, the nationally accepted benchmark for the design,
construction, and operation of high performance green buildings.
LEED credit requirements cover the performance of materials in aggregate, not the
performance of individual products or brands. Therefore, products that meet the LEED
performance criteria can only contribute toward earning points needed for LEED
certification; they cannot earn points individually toward LEED certification.
For detailed information about the council, their principles
and programs, please visit www.usgbc.org.
Slide 45 of 58
ENERGY STAR & LEED
LEED Contributions
Fiberglass doors have the potential to make a LEED
contribution based the following Material Resource
Requirements:
Slide 46 of 58
ENERGY STAR & LEED
LEED Prerequisites:
EA Credit 1 - Optimize Energy Performance:
Insulated fiberglass doors can contribute to the building envelope for overall
insulating performance, which is required to meet or exceed an ENERGY STAR rating
of an exterior door.
EA Prerequisite 2.1:
• Door configuration tested in standard NFRC frames with or without glass should
exceed IECC 2009, 402.4.4 fenestration air leakage of <0.5 cfm per ft2 or
<2.6L/s/m2 for swing doors.
• Doors with opaque or insulated glass should exceed the same standard.
Slide 47 of 58
ENERGY STAR & LEED
MR Credits 4.1 and 4.2 - Recycled Content:
Some models of fiberglass doors will contain recycled content. Check
with the manufacturer for specific recycled content of a product. The
percentage of recycled material must be converted to the cost of the
product.
Projects with materials with recycled content worth 10% of the total
material’s cost will earn one point; projects with recycled materials
worth 20% of the total material’s cost will earn two points.
Slide 48 of 58
ENERGY STAR & LEED
MR Credit 5.1 and 5.2 Regional Materials:
MR 5.1: Use of building products within 500 Miles of the project site.
Projects with recycled materials equal to or greater than 10% of the
total materials cost will earn one point.
MR 5.2: Use of building products within 500 Miles of the project site.
Projects with recycled materials equal to or greater than 20% of the
total materials cost will earn two points.
Slide 49 of 58
ENERGY STAR & LEED
MR Credit 6 0 - Rapidly Renewable Materials:
Some models of fiberglass doors contain materials that can
contribute towards the rapidly renewable materials point. The point
is earned if 2.5% of the material’s cost came from rapidly renewable
materials.
LEED is structured so that all or several products must contribute
towards a single credit/point; therefore, it is highly unlikely that
fiberglass doors alone will contribute enough to earn the credit.
Slide 50 of 58
Comparison of
Door Material Options
Slide 51 of 58
Comparison of Door Material Options
Introduction
In the last section of this course, we compare the characteristics of wood, steel, and
fiberglass doors, including environmental features, structural performance, and
aesthetics.
First, we’ll compare door materials across environmental and safety categories.
Most doors today will meet some environmental or safety rating. For example, you can
find an ENERGY STAR qualified door in wood, steel or fiberglass. However, when you
start to compare one door to another, you may find that “door A” does not have the
recycled materials content you want, while “door B” meets both requirements.
When selecting a door, consider what environmental and safety features are crucial to
the needs of your project.
Slide 52 of 58
Comparison of Door Material Options
Environmental & Safety Performance Comparison
The manufacturing process of fiberglass doors is generally less impactful on the
environment than wood or steel processing. This graph shows an environmental and
safety performance comparison among steel, wood, and fiberglass doors.
Slide 53of 58
Comparison of Door Material Options
Structural Performance Comparison
Next, we compare performance features that are important to consider when selecting
a door, such as energy efficiency, strength, and resistance to weather, insects, impact
and warping.
Slide 54 of 58
Comparison of Door Material Options
Structural Performance Comparison
In explanation of the previous slide, wood doors are known more for their beauty than
their energy efficiency. Steel doors, on the other hand, can be insulated, but steel is a
good conductor, regardless of its core R-value. Fiberglass doors outperform both wood
and steel because they are good insulators and are typically more energy efficient.
When it comes to weather resistance, there is no comparison. Wood doors and frames
can get wet, warp, and rot if they are not properly maintained. Steel doors will rust
over time. Fiberglass doors are not susceptible to weather-related failures like wood
and steel doors.
In terms of impact resistance, wood and steel doors can be damaged by impacts from
wind-borne debris, rogue balls from yard games, etc. Fiberglass doors are highly
impact-resistant and typically do not dent.
Slide 55 of 58
Comparison of Door Material Options
Aesthetic Comparison
When we compare the aesthetics of steel, wood, and fiberglass doors, we find that
fiberglass is the only material that ranks high in design configurations, finishing
options, and maintenance.
Slide 56 of 58
•
Summary
Slide 57 of 58
Summary
• Fiberglass entry doors have steadily gained market share in the last few years due to
their ability to mimic the appearance of a solid wood door; yet they offer better
strength, durability, and moisture resistance than both steel and wood doors.
• Fiberglass doors tend to be more energy efficient than wood or steel doors, and the
manufacturing process, generally, has less impact on the environment than wood or
steel processing. Furthermore, fiberglass doors may contribute to LEED points in
LEED for Homes and LEED V3.
• Low maintenance fiberglass doors offer unlimited finish options and can be
machined to include many panel and lite configurations.
• In terms of performance, fiberglass doors can vary. Doors made with full-length
composite stiles, rails, and frames offer greater durability and moisture resistance.
To ensure the door meets your requirements, check the energy performance
measures indicated on the NFRC label.
Slide 58 of 58