MATHEWS • BROTHERS • WINDOWS
WORLD CLASS PERFORMANCE • IMPECCABLE STYLING
A MATHEWS BROTHERS Family Product
Clara Starrett Mathews was a formidable woman, but then, she had to
be. In 1898, after the deaths of her husband (Sanford) and her son (Frank), she was put
in the unique position of assuming the presidency of Mathews Brothers. In typical Maine
fashion, she did what she had to do — together with her daughter-in-law (Addie) and her
daughter (Maude) — she continued to run the company. This made Mathews Brothers the
largest company in Maine to be run entirely by women. When you consider that women
would not be granted the right to vote for another twenty years, this was indeed a bold
task. Yes, Clara was a formidable woman, and it is for this reason we chose her as the
namesake of our most formidable window.
Learn more at mathewsbrothers.com
High Performance New Construction and Replacement Windows
THE NEXT GENERATION HAS ARRIVED
More than just a window…
To say that the Clara Starrett is a window, is like saying Babe Ruth played ball, Caruso sang, or Mozart
wrote music. No, this product is more like a symphony — a harmonious blend of individual cutting-edge
technological breakthroughs, designed to provide high-performance results without sacrificing aesthetics.
The framing material is the EnergyCore® Fusion Insulated System™, the result of innovative technology in
material extrusion. The profiles contain integral cellular insulation, strategically located in critical chambers,
to provide outstanding resistance to energy flow in its various forms.
The glazing package is further enhanced by Duralite® non-conductive warm-edge spacer. It combines six
essential components — a polycarbonate spacer with air pocket design, non-conductive stiffeners, a 3-sided
moisture barrier, low-permeability adhesives, stabilizers, and an encapsulated desiccated topcoat — to provide
a highly efficient, durable and reliable seal.The glass options – ¾" or 1" or 11/8" – allow for multiple glazing
configurations.
Whether you are looking for acoustic performance to reduce unwanted outside noise, thermal performance to
reduce energy costs or structural performance to meet commercial building requirements — or all three — the
Starrett series will meet your needs.
2
Cover: Private home showing both Transom and Double-Hung windows. This Page: University Credit Union in Orono, ME showing Picture windows.
Opposite Page: Unity College "America's Environmental College" showing Double-Hung windows.
Yesterday, today, and tomorrow
As Americas’s oldest window manufacturer, we at Mathews Brothers
have seen a lot of changes from our home on the Atlantic Coast. In the
160+ years we’ve been making windows and doors, we’ve watched ships
change from sail to steam to nuclear. We traded our oil lamps and steam
engines for electric lights and power saws, and we helped America grow
during the second Industrial Revolution.
Today, changes come at a much faster pace. What was state-of-the-art
yesterday has become commonplace today. Whether you’re a homeowner,
architect, builder, or remodeler, you are inundated with confusing and
sometimes conflicting information. Ultimately, we all want to make the
right choices for our family, for our community and for the earth.
Over the years, we’ve heard our share of trends, fads, and snake oil
salesmen. We know there’s no shortage of misleading and distorted
performance claims. So, when we discover something truly unique
and meaningful, we sit up and take notice. That’s what happened
when we first learned about EnergyCore®, a remarkable technological
breakthrough from Quanex Building Products.
Table of Contents
Clara Starrett
2
Whole Window Performance
4
Performance Metrics
5
Double-Hung, Transom,
& Picture Windows
6
Casement & Awning Windows
8
Horizontal Sliding Windows
9
Glazing Packages & Features
10
Performance Tested
13
Features & Options
14
Double-Hung Standard Sizes
16
Horizontal Slider Standard Sizes 17
Casement Standard Sizes
18
WOW! Customer Service
20
This patent-pending “fusion insulated” process blocks thermal conductivity three times better than wood, four times
better than rigid vinyl, and six times better than fiberglass. EnergyCore® is 100% recyclable, is weldable and (unlike
fiberglass), can be formed into a wide range of radius and geometric units. This combination of structural superiority
from sustainable, earth-friendly components that are aesthetically appealing, and have a wide range of design features,
makes the Clara Starrett family a truly unique product offering.
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WHOLE WINDOW
PERFORMANCE
In order to help both professionals and consumers understand
and make informed comparisons among the various window
performance criteria, code bodies such as AAMA (America
Architectural Manufacturer’s Association), NFRC (National
Fenestration Rating Council) and IGMA (the Insulating Glass
Manufacturers Alliance) have developed a series of voluntary
standards for windows.
Probably the best thing about uniform testing criteria is that
it “levels the playing field” among the various window framing
choices. It doesn’t matter whether they’re made from wood,
vinyl or metal, all windows are tested to the same criteria,
so that consumers can make an informed choice, based on
objective, unbiased reporting.
While only certain performance results are required to be
reported, there is a very good reason why the window industry
measures other performance attributes: a window is a dynamic
combination of systems, engineered to perform under a wide
variety of climactic conditions.
That’s the science of window manufacturing. The art of window
manufacturing balances these criteria to provide a window that
performs optimally in all the arenas.
Often, a manufacturer will sacrifice one performance standard
in order to improve another. That’s why Mathews Brothers
recommends that architects, builders and consumers consider
“whole window performance” when making their window
choices. Listed on the following page are the various criteria
used in evaluating window thermal and structural performance.
Mathews Brothers Company
Product Line
Clara Starrett
CPD Number
MBM-M-45
U-Factor
0.19
SHGC
0.22–0.25
Frame Type
Vinyl
PG
40
Climate Zones
N, NC, SC, S
*This chart can be found on energystar.com indicating the "Most Energy Efficient
Vertical Slider Windows of 2014" by the criteria of Energy Star®
4
This Page, top to bottom: Department of Energy Field Study in Brunswick, ME showing Picture and Awning windows; Maine Huts and Trails
showing Picture and Awning windows; Private home showing Casement and Geometric windows.
RATING
EXPLANATION
(CODE BODY)
U-FACTOR
(NFRC)
PERFORMANCE
U-Factor is the measurement of a window's ability to transfer heat. As the performance scale to the right
shows, the lower the number, the more energy efficient the window. U-Factor takes into consideration
both framing, glazing, and spacer conductivity, so it is therefor a "whole window" rating. While a window's
U-Factor is an important measurement, it should not be the only measurement considered.
*Poor – ≥0.50
Energy Star® – ≤0.30
Energy Star® Most Efficient – ≤0.22
SHGS
(NFRC)
SHGC is a measurement of the glazing package's Solar Heat Gain Coefficient. Typically, the lower the
U-Factor, the lower the SHGC. In the Northern climate zone, there are limited opportunities for solar heat
gain in the cold months due to short days, overcast skies and the sun lower in the sky.
VT
(NFRC)
VT is a measure of a glazing package's Visible Light Transmittance, an important measurement
in high performance windows. Low-E glass reduces radiated heat loss, but also reduces visible light.
Some manufacturers use multiple layers of Low-E in order to improve the U-Factor, not considering
the darkening effect of the glass, a result many consumers find unsatisfactory.
Poor – ≤0.32
Minimum – 0.50
Superior – ≥0.55
CRF
(NFRC)
CRF is the window's Condensation Resistance Factor, a measurement of its ability to prevent
excessive condensation forming on the interiors surfaces during the cold winter months. In order to
improve the U-Factor, some manufacturers have begun to use Surface 4 (S4) Low-E glazing, which
also lowers the CRF of the window, resulting in damaging levels of condensation during the colder
autumn and winter months.
Poor – ≤0.50
Minimum – 0.50
Superior – ≥0.55
Air Infiltration number is a measurement of the cubic volume of air that passes between a window frame
and the sash, divided by the area of the window. This is expressed as cfm/ft2. Of all the testing windows
are subjected to, this is the only one that is performed by both AAMA and NFRC.
(AAMA) Poor – ≥0.31
(AAMA) Average – 0.15–0.25
(AAMA) Superior – ≤0.14
Structural Load is the maximum pressure a window can withstand before being damaged. Window
performance will vary depending on its size, so it's important to compare the AAMA Structural Rating for
the "gateway size", as this is the only valid method of comparing windows objectively.
Poor – PG R15
Suggested – PG R30
Superior – ≥PG R50
Water Resistance
(AAMA)
Water resistance is a measurement of the window's ability to prevent water from breaching the interior
plane of the window's surface, while being subjected to increasing levels of air pressure. The higher the air
pressure the window can endure while still preventing water ingress, the better the performance.
Poor – 2.92 psf (PG15)
Suggested – 4.59 psf (PG30)
Superior – 6.06 psf (PG50)
Energy Star®
(DOE/EPA)
ENERGY STAR® is a joint program of the Department of Energy and the EPA that promotes the use of
the energy efficient products in specific classifications. ENERGY STAR® rating requirements change every
few years, so make sure your product choosing is current in its designation.
Northern Climate Zone
U-Factor – ≤0.30
SHGC – Any
VT – Any
ENERGY STAR® Most Efficient designation recognizes the very small percent of the most efficient
among those that qualify for ENERGY STAR®.
Northern Climate Zone
U-Factor – ≤0.20
SHGC – 0.20
VT – ≥0.40
Air Infiltration
(NFRC/AAMA)
Structural Load
(AAMA)
Energy Star®
Most Efficient
*Poor – ≤0.20
Energy Star® – Any
Superior – ≥0.30
*Thermal Performance values of Poor to Superior as defined are based on the Northern Climate Zone, as defined by the EPA Energy Star map.
Clara Starrett product line sampling
As viewed from exterior. Each window is custom built to your specifications.
Casement
Picture
Awning
Double-Slider
Double-Hung
Arch Top
W
W
W
H
H
Triangle
Trapezoid
Half-Round
Circle
H
Octagon
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3
3
5
4
5
1
4
1
2
1
Dual layers of weatherstripping work together at the integral interlock to
provide an effective barrier to air infiltration and noise infiltration.
2
Tri-extruded frame and sash profiles provide an inherent barrier to heat loss
in the winter and heat gain in the summer. Fusion Insulated System® blocks
thermal conductivity 6x better than fiberglass.
3
Glass options to satisfy nearly every glazing requirements, from standard
¾" dual glazing, 1" triple glazing, and 1⅛" triple glazing.
4
Duralite® warm-edge space system, can improve the energy efficiency by as
much as 10 percent.
5
The fusion-welded frame and sash are designed to accommodate wider,
high-performance triple glazing systems.
Standard features
Glazing Class 4: 3/4" dual pane insulating
glass with warm-edge technology
Low-E glass
Argon gas filled
Fusion-welded frame and sash for added
strength
White exterior and interior color
Sloped sills for water runoff
White hardware
BetterVue® insect screen
Optional features1
Nailing Fin²
1" or 1-1/8" tri-pane insulating glass with
warm-edge technology
Grilles available as GBG or SDL
Exterior trim/casing²
Pediment Head (Crossheads)²
Extension jambs or drywall return²
See pages 14-15 for additional options.
1
2
Available on new construction units only.
6
This page, top to bottom: Unity College under construction; Private home showing Transom and Double-Hung windows.
Opposite page, top to bottom: Zero Energy Challange home in Killingly, CT; Zero Energy Challenge home in Brooklyn, CT.
DOUBLE-HUNG, TRANSOM,
& PICTURE WINDOWS
Double-Hung Windows
The classic American window, and a standard in our buildings
since colonial days, double-hung windows define the traditional
home. Both upper and lower sash glide smoothly and easily,
allowing fresh air in through the bottom, while allowing stale air
to escape at the top.
Both sash tilt-in with the touch of a button, so cleaning the
exterior glass is easy. Dual locks (depending on width) and a
fully weatherstripped interlock provide resistance to air and
water infiltration.
Enhance your windows with grilles (we offer a variety of styles
and designs), a factory applied exterior paint finish, or exterior
trim² – or select all of the above – the choices are yours.
Picture or Transom Windows
Bring in more light without sacrificing performance. Picture
units align perfectly, whether placed above, below or next to
your double-hung windows, allowing you to decorate your walls
with windows.
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CASEMENT &
AWNING WINDOWS
The architect’s choice for both contemporary residential and
commercial applications, casement windows offer a clean crisp
exterior appearance. Casement sash opens outward, either right
or left, and can be combined with stationary units.
Casement windows are side hinged, allowing increased ventilation
by capturing passing breezes and channeling them into your
home or building. Articulated hinge hardware2 on the casement
windows actually provide access to the exterior glass, making it
easy to clean from the inside of your home.
Awning windows are top hinged and open outward from the
bottom. Awning windows can be combined side-by-side, stacked,
or with stationary units.
Standard features
Glazing Class 4: 3/4" dual pane insulating
glass with warm-edge technology
Low-E glass
Argon gas filled
Fusion-welded frame & sash for added
strength
Internal weep system to channel water to
exterior of home
White exterior and interior color
White hardware
BetterVue® insect screen
Of course, the same grille choices are available for casement and
awning windows, with the addition of a Simulated Check Rail3
option. This unique option replicates the look of a double-hung
window, so you can retain the colonial look while still receiving
the benefits of a casement window.
Optional features1
Nailing fin4
1" or 1-1/8" tri-pane insulating glass with
warm-edge technology
Grilles available as GBG or SDL
Exterior casing/trim4
Pediment Head (Crossheads)4
Extension jambs or drywall return4
Desert Sand interior & exterior
¹See pages 14–15 for additional options.
²Unless egress hinge is used.
³Not available on 1⅛" triple pane glass.
4
Available on new construction units only.
8
This page, top to bottom: Maine Huts and Trails featuring Awning windows; Interior Casement windows during construction.
Opposite page, top to bottom: Private home showing Awning windows; Exterior Casement windows.
Casement Features
Heavy Wall Reinforced
Construction, allows for
slim line look while
ensuring maximum
strength and durability
Specially designed Airtight Seal,
cuts off the maximum
amount of air flow while
increasing tightness
Multi-Point Lock
Low Profile Curved Lock,
lies flat out of the way of
window treatments
Low Torque Operator,
crank requires 33% less
operating force, includes an
airtight operator cover
Optional: fold down handle
with nesting cover
(not shown)
Optional: add on J-channel (not shown)
Please note: nailing fin not shown
HORIZONTAL SLIDER
Horizontal Sliders are the newest addition to the
Clara Starrett family product line. Available in 2-lite
or 3-lite configurations. The 2-lite units each consist of two
sashes which slide independently of each other on tracks,
while a 3-lite unit includes a stationary center unit. Ideal
for those areas where projecting windows would limit
floor space.
Standard features
Glazing Class 4: 3/4" dual pane insulating glass with
warm-edge technology; Low-E/Argon
Fusion-welded frame & sash for added strength
Internal weep system to channel water to exterior of home
White prefinished exterior/interior color & hardware
BetterVue® insect screen
Brass rollers with steel shaft for added strength
Both sashes lift out for easy cleaning on operating units
Optional features1
1" or 1-1/8" tri-pane insulating glass with warm-edge technology
Nailing fin4
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GLAZING PACKAGES & FEATURES
Glazing Class 2
Glazing Class 6 (PassivGlas-ENERGY STAR® Most Efficient*)
Our clear dual pane ¾" insulating glass units combine
two panes of glass, sealed together creating a dead air
space, separated by a Duralite® non-conductive spacer.
This glass offers maximum visible light transmittance
and superb energy efficiency in most climates.
This 1⅛" triple glazed technology package combines
two panes of Low-E glass and one pane of clear glass,
creating two air spaces filled with argon gas, separated
by Duralite® spacers.
Glazing Class 3
We offer a 1" triple pane glazing package when SDL
grilles are desired. Please contact your local dealer for
more information.
This ¾" dual pane glazing package combines one sheet
of clear glass and one sheet of Low-E glass, sealed in the
same manner. This package provides better year-round
performance and decreased energy costs.
Glazing Class 4 (Standard)
Same features as Glazing Class 3, with the addition
of argon gas fill in the air space. By choosing options
like Low-E glass with argon, our windows will meet
the most stringent ENERGY STAR® requirements.
Glazing Class 5
This package uses 1⅛" triple glazing technology that
combines two panes of clear glass and one pane of
Low-E glass, creating two air spaces that are filled with
argon gas, separated by Duralite® spacers.
*Criteria for 2014 ENERGY STAR® most efficient requires U-Value ≤ 0.20
and the SHGC ≥ 0.20.
10
Special Glazing Class
Glazing is also available with the following options:
Tempered
Often referred to as “safety glass”, is available in window
units to meet specific building and safety codes.
Laminated
Two or more panes of glass are bonded together by
a durable plastic interlayer, which enables the glass to
strongly resist penetration by impacting objects.
Laminating provides the ultimate in UV blockage while
also reducing levels of sound transmission significantly.
Obscure and/or Tinted
The combination of texture and color can transform
your space, adding personality and complexity.
This page: Insulating glass units that are being sealed under heat and pressure.
Opposite page, top to bottom: Cross section of frame and glass; 3/4" IGU; Energy Core sash profiles.
Built with Innovative Technologies
Manufacturing the ultimate in energy-efficient windows requires
that the ultimate in framing and glazing technologies work
together in harmony.
Herein lies the secret of the Clara Starrett family of windows.
The patented EnergyCore® framing with its AirCell™ insulating
core technology provides the lowest conductivity rating of any
window material in the world. This superior framing material
allows you greater freedom when choosing your glazing package.
Regardless of the glass you choose, all of our insulating glass units
are made with Duralite® warm-edge spacer technology. Duralite®
is part of a highly energy-efficient insulating glass spacer system
known as “Envirosealed Windows™ ” which assures consumers
that the insulating glass spacer system in their windows is the most
energy-efficient choice on the market.
Whether you choose ¾" dual glass package or the 1" or 1⅛" triple
glass package, the beauty of the outside world still shines through
while providing you an inside environment that’s comfortable
and inviting.
K-VALUES MEASURE THE THERMAL CONDUCTIVITY
1.60
Fiberglass
1.18
Rigid PVC
0.96
Wood (Pine)
0.23
EnergyCore®
The K-VALUE is a measurement of heat flow through the frame
of the window. This means that the lower the value, the more
energy efficient.
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In warm weather,
Low-E glass
reflects the
sun’s energy and
reduces heat gain
in the home.
Duralite® warm-edge spacers =
Improved Efficiency
Clara Starrett windows use this superior warm-edge
insulating glass sealant system for improved energy
efficiency and resistance to condensation, greater
comfort, and lower heating and cooling costs.
The Duralite® spacer inside your window’s insulating
glass unit can reduce heat transfer and improve the
temperature of your inside window glass. The warmer
the glass edge, the less energy lost and the more
comfortable you feel near your window. That leads
to saving energy, which reduces how much you spend
to heat and cool your home. Duralite® can also reduce
condensation on the glass, keeping off moisture for
a clearer view to the outside. Less condensation
and reduced energy costs means a healthy, more
comfortable home.
The Duralite® spacer is a component laminate design
that optimizes the use of a number of different spacer
components. All spacers need adhesives, sealants,
structural elements and desiccant to perform. They
also need to last a long time under adverse conditions
inside your window frame. Duralite® is designed to seal
your window better and longer, while increasing energy
savings compared to other types of spacers.
Exterior
Interior
When Duralite® non-metallic insulating glass spacers are used,
glass edge is better insulated against energy loss, creating a
higher performance thermal barrier.
Encapsulated desiccated topcoat
Moisture-resistant bond line adhesive
3-sided non-metallic continuous
moisture barrier
Sightline stiffener for smooth surface
Polycarbonate spacer with air pocket
design (traps air between corrugation)
12
In cold weather,
Low-E glass
reduces the
amount of
heat loss by
reflecting
it back inside.
Low-Emissivity (Low-E) coatings are microscopically thin metal
layers that are deposited on a window surface to help keep heat
on the same side of the glass from which it originated.
Low-E insulated glass provides the best year-round performance
and decreased energy costs. In the winter, by reflecting heat back
into the home, Low-E glass helps keep homes warmer providing
improved comfort and reduced condensation. Low-E glass blocks
83% of harmful UV rays and 96% of the sun’s infrared heat, so
homes will stay cooler in the summer and interior furnishings
fade less.
Argon gas is much more dense than air, so it provides a more
effective barrier against heat conduction through the glass.
Combining Low-E glass with argon gas creates even greater energy
savings and decreases the U-factor. By choosing the options like
Low-E glass with argon, our windows will meet the most stringent
ENERGY STAR® requirements.
Consistent with our Vision Statement,
the mathews brothers environmental
stewardship initiative (mbesi) is our
corporate commitment to protecting
and preserving our corner of the world.
With a long history of manufacturing products
from wood, it is in our nature to want to protect
this natural resource. While this may be the
“cause of the week” for many companies, we
have embraced environmental stewardship
since our beginning.
Additionally, we are committed to a “cradle
to cradle” approach to our manufacturing.
We use only environmentally safe and
healthy materials, which are designed to use
material that is easily recycled or composted.
Our products are made to conserve energy
in their manufacture and use. In addition, we
installed an efficient water recycler, reducing
the amount of water used to clean our glass.
PERFORMANCE TESTED
American Architectural Manufacturing Association
Since 1936, the American Architectural Manufacturers Association (AAMA) has stood as a strong
advocate for manufacturers and professionals in the fenestration industry, and today, stands as a
representative of both the residential and commercial sectors.
National Fenestration Rating Council
The National Fenestration Rating Council (NFRC) is a nonprofit, public/private organization created by
the window, door, and skylight industry. It is composed of manufacturers, suppliers, builders, architects
and designers, specifiers, code officials, utilities, and government agencies. The NFRC has developed a
window energy rating system based on whole product performance.
The NFRC label provides the only reliable way to determine the window energy properties and to compare
products. The NFRC label appears on all products certified to the NFRC standards and on all window, door,
and skylight products which are part of the ENERGY STAR® program. At this time, NFRC labels on window
units give ratings for U-Factor, Solar Heat Gain Coefficient (SHGC), and Visible Light Transmittance (VT).
ENERGY STAR®
Mathews Brothers is proud to offer our customers products that have earned the government’s
ENERGY STAR® label.
ENERGY STAR® is a government-backed program that helps consumers identify the most energy-efficient
products. Learn more at www.energystar.gov.
Climate Zone
U-factor
SHGC
Northern
≤ 0.20
≥ 0.20
Northern-Central
≤ 0.20
≤ 0.40
South-Central
≤ 0.20
≤ 0.25
South
≤ 0.20
≥ 0.25
Forest Management and Green Building
Mathews Brothers has made a meaningful commitment to support and promote sustainable forestry
initiatives. We are active members of The Maine Chapter of the U.S. Green Building Council and
The Maine Forest Products Council.
mathewsbrothers.com | 13
FEATURES & OPTIONS
Window Customization
Define your own style by adding optional features such
as grilles, exterior trim, a pediment head or one of our
many exterior paint choices.
Drywall Return Option¹
Available with ¾" channel to create a smooth
transition between window frame and wall.
Allows the drywall to slide into it for a clean
finish around your windows.
Grilles Between Glass (GBG) offer an attractive and
low maintenance artistic option, that allows you to place
a variety of design patterns within the insulating glass
unit. Simulated Divided Lites (SDL)³ offer a more
traditional grille look by permanently attaching SDL
dividers to the interior and exterior glass.
Hardware Features
casement & awning
Continue the traditional look with Pediment Heads
(also known as Crossheads) added to the outer casings
of windows¹. Pediments are often used in tandem with
other architectural trim items like Pilasters.
Fold-away Handle Set
(left hand shown)
With the many optional exterior paint colors available
you can truly make a unique statement to your home
or office.
double-hung &
Extension Jamb Options¹
Used to increase the depth of the window jamb to
match wall depth. Available in 49/16" and 69/16" in either
clear or primed wood, or stainable PVC to easily trim
your windows with moulding. Check with dealers on
custom size options.
Lock Lever
color
White
Sash Lock
horizontal slider
Exterior Paint Options
Our in-house palette consists of 17 prefinished exterior colors, with many other colors available.
Pearl White
Cream White
Desert Sand
Adobe
Fog
Gray
Slate Blue
Black
Bronze
Dark Brown
Earth Brown
Barn Red
Boysenberry
Burgundy
Please note that the material colors are not necessarily precise representations due to variance in the printing process.
14
Opposite page: Belfast Shrine showing Picture windows.
Edgewood Blue Spruce Green
Dark Forest
20-Year Limited Window Warranty
The Limited Warranty applies to any manufacturing
defects and/or component failures.
Covers materials and workmanship for 20 years.
Is transferable to a second owner for the remainder
of warranty.
Commercial warranty available.
For the complete Clara Starrett warranty, please
visit our website at www.mathewsbrothers.com.
Grille Options
5/8" Contoured GBG
(Grilles Between Glass)
Pediment Head Options¹ ,²
5/8" Flat GBG
(Grilles Between Glass)
7/8" Contoured SDL³
(Simulated Divided Lite)
Exterior Trim Options¹
Shown with flat casing
Common Grille Configurations
As viewed from exterior. Other designs available.
Colonial
Flat 3½" Casing
Shown with banded casing
Banded 4" Casing
Prairie
Queen Anne
6/1
Brickmould (908) Casing
¹Exterior trim and pediments options are available on new construction only.
²Brickmould with pediment head not shown.
³Permanently adhered to both the interior and exterior glass. Not available on 1⅛" glazing.
mathewsbrothers.com | 15
DOUBLE-HUNG STANDARD SIZES
Double-Hung Window Standard Sizes
Custom Sizes Available
Notes:
Call out sizes are calculated in inches.
Meets egress of: Clear openable area 5.7 sq. ft.; Clear openable width ≥20 inches; Clear openable height ≥24 inches.
†
Custom sizes available.
16
HORIZONTAL SLIDER STANDARD SIZES
Horizontal Slider Window Standard Sizes
Custom Sizes Available
Rough Opening
Unit Size
Outside Measurement
72"
71¼"
71½"
HS3624
HS4824
HS5424
HS6024
HS7224
HS3630
HS4830
HS5430
HS6030
HS7230
HS3636
HS4836
HS5436
HS6036
HS7236†
HS3642
HS4842
HS5442
HS6042†
HS7242†
HS3648
HS4848
HS5448†
HS6048†
HS7248†
HS3654
HS4854
HS5454†
HS6054†
HS7254†
HS3660
HS4860
HS5460†
HS6060†
HS7260†
42"
41¼"
41½"
60"
59¼"
59½"
36"
35¼"
35½"
54"
53¼"
53½"
30"
29¼
29½
48"
47¼"
47½"
24"
23¼"
23½"
36"
35¼"
35½"
48"
47¼"
47½"
54"
53¼"
53½"
60"
59¼"
59½"
mathewsbrothers.com | 17
SINGLE CASEMENT STANDARD SIZES
Casement Window Standard Sizes
Custom Sizes Available
Notes:
Call out sizes are calculated in inches.
Meets egress with standard hardware.
†
‡Meets
egress with egress hardware.
Clear openable area 5.7 sq. ft.;
Clear openable width ≥20 inches;
Clear openable height ≥24 inches.
Custom sizes available.
18
TWIN CASEMENT STANDARD SIZES
Casement Window Standard Sizes
Custom Sizes Available
Rough Opening
Unit Size
Outside Measurement
59 3⁄8"
58 9⁄16"
58 ¹³⁄16"
63 3⁄8"
62 9⁄16"
62 ¹³⁄16"
71 3⁄8"
70 9⁄16"
70 ¹³⁄16"
2024-2
2424-2
3024-2
3224-2
3624-2
2036-2
2436-2
3036-2
3236-2
3636-2
2042-2
2442-2
3042-2
3242-2‡
3642-2†
2048-2
2448-2
3048-2‡
3248-2‡
3648-2†
2054-2
2454-2
3054-2‡
3254-2‡
3654-2†
2060-2
2460-2
3060-2‡
3260-2‡
3660-2†
2066-2
2466-2
3066-2‡
3266-2‡
3666-2†
2072-2
2472-2
3072-2‡
3272-2‡
3672-2†
36"
35 ¼"
35 ½"
47 3⁄8"
46 9⁄16"
46 ¹³⁄16"
24"
23 ¼"
23 ½"
39 3⁄8"
38 9⁄16"
38 ¹³⁄16"
42"
41 ¼"
41 ½"
48"
47 ¼"
47 ½"
54"
53 ¼"
53 ½"
60"
59 ¼"
59 ½"
66"
65 ¼"
65 ½"
72"
71 ¼"
71 ½"
mathewsbrothers.com | 19
AWNING STANDARD SIZES
Awning Window Standard Sizes
Custom Sizes Available
Rough Opening
Unit Size
Outside Measurement
30"
29¼"
29½"
36"
35¼"
35½"
42"
41¼"
41½"
48"
47¼"
47½"
54"
53¼"
53½"
60"
59¼"
59½"
2424
3024
3624
4224
4824
5424
6024
2430
3030
3630
4230
4830
5430
6030
2436
3036
3636
4236
4836
5436
6036
2442
3042
3642
4242
4842
5442
6042
24"
23¼"
23½"
24"
23¼"
23½"
30"
29¼"
29½"
36"
35¼"
35½"
42"
41¼"
41½"
Notes:
Call out sizes are calculated in inches.
Custom sizes available.
20
permeates every aspect of Mathews Brothers. It is our corporate commitment to
maintaining the absolute highest levels of customer satisfaction with our windows and door products, our people and
our processes. Every employee of Mathews Brothers Company proudly stands behind the products we make, and
we are keenly aware of our individual “points of impact” to our final customer.
WOW! Customer Service is the shorthand reminder of our Vision and Mission Statements: WOW! stands for
Windows On Wellness, and grew from questions about what is important to us: family, faith, friends, community,
our nation, and so on. As the list grew, it became apparent that these “circles of importance” could be grouped into
personal, corporate, community, and planet. These became our “Windows”, and the health or “Wellness” of these
circles could be assessed from both a physical and financial standpoint. Hence, the term “Windows on Wellness”.
Our Mission Statement is simple: Consistently Superior Customer Service, and this serves as our guide for our approach
to all customer interactions. We’ve been making windows and doors for a long time now, and we know that the work
we’ll do tomorrow rests on the foundation we built yesterday. And that’s the attitude that is shared by all of us here
at Mathews Brothers Company.
To maintain the highest standards of quality, we’re a member of the American Architectural Manufacturers Association, an
ENERGY STAR® partner, and participants in the National Fenestration Rating Council certification program.
A Warranty Is Only As Strong As The Company Providing It
Ask yourself: would you rather have a “Lifetime” Warranty from a company that’s been in business
20 years or so, or a 20-Year Warranty from a company that’s been in business for several lifetimes?
With Mathews Brothers “Clara Starrett” family of windows, you get coverage* against defects in
materials or workmanship, backed by a company that’s been making windows since 1854.
*Please refer to Clara Starrett Limited Manufacturer’s Warranty for specific details.
Clara Starrett EnergyCore® Vinyl Windows
Twenty Year Limited Manufacturer’s Warranty
Thank you for your purchase of Mathews Brothers products. You have made a wise investment in your home. We are
confident you will enjoy many years of trouble free performance from these products, and you can rest assured your purchase
will enhance your home’s value.
The Mathews Brothers Company Promise
Mathews Brothers Company (herein referred to as MBC), the manufacturer, warrants that each Clara Starret window
you purchase, including Sealed Insulating Glass Units, will be free from covered manufacturing defects for up to twenty
(20) years from date of purchase.
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We have the right to change specifications and products without notice. Please note that the material colors are not necessarily precise representations due to variance in the printing process.
©2014 Mathews Brothers Company, all rights reserved. EnergyCore & AirCell are trademarks of
Quanex Building Products. ENERGY STAR and the ENERGY STAR mark are registered U.S. marks.
The National Fenestration Rating Council logo is registered trademark of the National Fenestration
Rating Council. All rights reserved. All other trademarks are the property of their respective owners.
2014_04CS
Mathews Brothers Company | 22 Perkins Road | Belfast, Maine 04915
800.615.2004 toll-free | 207.338.6490 | 207.930.7030 fax
www.mathewsbrothers.com
