After: new clay replacement windows, front of the home, on a Colleyville home
Before: the original windows, front of the home, on the same Colleyville home
BeforeAfter

The problem

The home still had its original windows, and the frames and glass were showing their age. Like most homeowners we work with, the goal was a home that’s more energy efficient and better looking, which for most families is their biggest investment.

What we did

We replaced 20+ windows with Vistamark Endura replacement windows in clay, glazed with Cardinal Lodz-366 low-E glass, covering the windows shown in the photos on this page.

The result

The new clay frames give the home a clean, updated look, and the new glass lets in more light.

Old windows vs. new windows

What changes when old metal-frame windows are replaced with modern dual-pane, low-E vinyl windows. These are typical published ratings, not measurements taken at this home.

Energy efficiency

Higher bars are better. Insulating value (R = 1 ÷ U-factor) shows how well the window keeps heat in or out. "Summer sun heat blocked" (1 − SHGC) matters a lot in Texas.

Insulating value (R), higher = better

Old new-construction window
R 0.78
AdEx Efficient Replacement Windows
R 3.6+

Summer sun heat blocked, higher = better

Old new-construction window
27%
AdEx Efficient Replacement Windows
77%+

About 4½ times better at keeping heat in or out, roughly 78% less heat moving through the window, and about three times as much summer sun heat blocked. Typical published ratings, not measured at this home.

Sources: old windows = metal-frame single-pane clear (U 1.29, SHGC 0.73) and double-pane clear (U 0.83, SHGC 0.65), from the U.S. DOE Building America Measure Guideline: Energy-Efficient Window Performance and Selection (Table 1). New windows: AdEx Efficient Replacement Windows meet or exceed the ENERGY STAR Windows Version 7.0 South-Central zone requirements (U-factor ≤ 0.28, SHGC ≤ 0.23); the bars use those minimum values. These are whole-window ratings, so they differ from the center-of-glass glass specs below. Typical values only. Actual savings depend on the home and are not guaranteed.

Sound reduction

STC (Sound Transmission Class) works like decibels: a window blocks roughly its STC rating in dB. Every 10 points of STC makes outside noise sound about half as loud, and about 3 points is the smallest change most people notice. Bars show how much sound energy each window stops compared with the old single pane, so longer is better.

Old new-construction window
Blocks ~27 dB (STC 26–28)
1x
Standard dual pane
Blocks ~29 dB (STC 28–30)
~1.6x more sound blocked
Sound-upgrade glass
Blocks ~32–33 dB (STC 32–33)
~3.5x more sound blocked

Standard dual pane blocks about 1.6x more sound than a single pane. Sound-upgrade glass blocks about 3.5x more sound (roughly 70% less sound energy getting through). Based on the midpoint of each range; typical lab ratings, not measured at this home.

Sources: single pane = Soundproof Windows, Inc., STC Ratings ("most likely between 26 and 28"). Dual pane and sound-upgrade = lab-tested windows in Andersen 100 Series STC/OITC data (dual pane standard STC 28–30; STC upgrade 32–33), shown as an example of a modern vinyl-type window, not the product used here. Typical values only, not measured at this home. STC/loudness rule: Penn State NoiseQuest, The Soundproofing Company.

Glass: Cardinal Lodz-366

Every AdEx window uses Cardinal Lodz-366, a clear glass with three layers of silver coating that cuts the sun’s heat while letting daylight through.

U-factor
0.24 (argon) · 0.29 air
Solar heat gain (SHGC)
0.27
Visible light let in
65%
UV blocked
95%

Center-of-glass manufacturer data for a dual-pane unit with 3 mm glass, a 13 mm gap and 90% argon fill, calculated by Cardinal with LBNL Window 7.8. Whole-window ratings vary with the frame. Source: Cardinal Glass Industries, Lodz-366 and Cardinal Lodz-366 spec sheet (PDF).

About the windows: Vistamark Endura

Slim, about 2-inch frames: more glass and a cleaner, updated look. (AdEx measurement of visible vinyl, from the brick to the glass.)

  • Vistamark’s flagship vinyl window line, built on the Endura 100 vinyl profile.
  • Styles include picture windows (in arch and other shapes, up to 84" × 96"), single hung and single slider windows.
  • Single hung sashes tilt in, and slider sashes lift out, so the outside glass can be cleaned from indoors.
  • Triple weather seal on the sash, continuous weather stripping and low-profile locks.
  • Oversized weep system to drain rainwater out of the frame.

Options for your home

  • Styles: picture (including arch and other shapes), single hung, single slider
  • Frame colors:
    • White
    • Almond
    • Clay This job
    • Bronze
    • Black
    Swatches are illustrations; see samples in person. Colors per AdEx.
  • Grid patterns: Colonial, Prairie, Continuous Prairie, Valance

Source: Vistamark Endura picture, single hung and slider product pages.

Warranty

  • Covers significant defects in material and workmanship for the lifetime of the product, for the original purchaser.
  • Vinyl and laminated vinyl frames: 20 years. Painted vinyl: 15 years.
  • Insulated glass seal failure (film or fogging between the panes): 20 years, passed through from the glass maker.
  • Transferable once to a new owner. The transferred coverage ends 10 years from the date the window was made.
  • Glass breakage isn’t covered. Vistamark supplies replacement parts, and labor isn’t included.

Download PDF: Vistamark Limited Warranty (July 2023)

Read the full Vistamark Limited Warranty (July 2023)

HOMEOWNER LIMITED LIFETIME WARRANTY

Windows and Patio Doors
Revised 6/21/23

Subject to the terms and conditions stated herein, Vistamark Enterprises warrants to the end-use Original Purchaser and to one subsequent owner, that under the conditions of normal use and service, all window and /or patio door products manufactured by Vistamark Enterprises will be free from significant defects in material and workmanship that may unreasonably affect their performance in normal use for the lifetime of the product. Warranty time frames for insulated glass and vinyl frame materials are specific in this warranty and are listed below.

In the event the original purchaser sells the property in which the products are installed, the coverage provided by this warranty may be transferred to the new owner and will expire ten (10) years from the manufacture date of the product. The coverage provided by this warranty may not be transferred to more than one subsequent owner. Transferred warranty is not to exceed the original warranty time frame.

Insulated Glass units glazed by Vistamark Enterprises in to windows and doors manufactured by Vistamark Enterprises shall be free from material obstruction of vision as a result of film accumulation on interior glass surfaces resulting exclusively from failure of the hermetic edge seal from sources other than glass breakage or cracking for a period of 20 years. This is a pass-through warranty from the manufacturer of the insulated glass component.

The insulated glass component of this warranty excludes any and all problems with the product or damage to the product caused by, or as a result of, (a) minor blemishes in the glass that do not significantly impair the structure or vision through the glass including slight glass curvature; (b) color variations or variations of the glass or coatings required by codes for energy saving purposes; (c) glass breakage for any cause or any reason; (d) subjection to stresses arising from glass surface temperature differentials or building settlement or movement; (e) condensation on the external surfaces of the window or glass; (f) transportation or installation of the glass products in excess of 4000 feet above sea level unless equipped with capillary or breather tubes; (g) misalignment of exterior or interior grids or muntins of 1/8” or less from absolute perfect position; (h) improper application, alteration, modification or misuse of the insulated glass units, including the application of aftermarket films to the glass.

All vinyl profiles, and laminated vinyl profiles will be covered for a period of 20 years. Painted vinyl profiles provided by Vistamark will be covered for a period of 15 years.

The warranties described above cover only issues specifically involved in manufacturing the product and do not include damages caused by or as the result of (1 the improper installation or improper use of the product or products by the Original Purchaser, his agents, assigns, or invitees; (2) the improper application or use of the product; (3) any modification or alteration to the product; (4) accidents, vandalism, fire, floods, and acts of God: (5) the failure to perform reasonable care and necessary maintenance on the product or products; (6) neglect in handling, abuse, or improper storage of the product; (7) stresses caused by movement in the structure in to which the product was installed; (8) exposure of the product to excessive heat or cold beyond naturally occurring conditions; (9) the application of harmful cleaning solutions or products, including but not limited to, high pressure washing, acetone, petroleum products, acids, or abrasive compounds; (10) slight fading and/or color variations caused by normal aging or weathering; (11) damaged screens; (12) installation of the product or products outside the contiguous United States.

A new replacement part will be provided upon receipt of the original defective part or Vistamark Enterprises validation of the complaint. Vistamark Enterprises reserves the right to require return of the defective part(s). Labor of any kind or costs to remove the defective part and/or to install the replacement unit is not included in this warranty. Vistamark Enterprises shall bear no other expense of any kind and the Original Purchaser’s exclusive remedy shall be replacement or credit on the basis stated. The Original Purchaser shall pay all labor costs necessary to install replacement units.

Vistamark Enterprises reserves the right to discontinue or make changes in the unit and/or in any of its insulating windows or doors or any other products. If the unit covered by this Limited Warranty is not available, in the event of replacement of a non-conforming unit, Vistamark Enterprises shall have the right to substitute a replacement unit that, in Vistamark Enterprises’s sole discretion, is of equal quality or value.

Vistamark Enterprises is providing an express Limited Warranty as set forth herein. Vistamark Enterprises cannot and shall not be liable for a breach of any other written or oral express warranties, such as those, if any, given by dealers, contractors, applicators, installers, or distributors of the units and/or of the Vistamark Enterprises insulated windows and doors containing the units.

THE WARRANTIES SET FORTH HEREIN ARE EXPRESSLY IN LIEU OF ANY OTHER EXPRESSED WARRANTIES AND OF ANY OTHER OBLIGATIONS OR LIABILITIES ON VISTAMARK ENTERPRISES’ BEHALF. VISTAMARK ENTERPRISES NEITHER ASSUMES, NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR US, ANOTHER LIABILITY IN CONNECTION WITH THE SALE OF THE PRODUCT. VISTAMARK ENTERPRISES SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL DAMAGES OR INCIDENTAL DAMAGES FOR BREACH OF ANY EXPRESS, WRITTEN, ORAL, OR IMPLIED WARRANTIES. YOUR EXCLUSIVE REMEDY SHALL BE REPLACEMENT OR CREDIT ONLY ON THE TERMS STATED IN THIS EXPRESS LIMITED WARRANTY. Some states do not allow the exclusion of incidental or consequential damages so the above limitation or exclusion may not apply to you.

This Limited Warranty gives you specific legal rights. You may also have other rights, which vary from state to state.

Register your warranty at Vistamarkwindows.com

Claims under this Limited Warranty must be presented in writing as soon as practicable after discovery of the non-conforming unit to:

Vistamark Enterprises, LLC.
Warranty Claim
3581 S. Hwy 287
Waxahachie, Texas 75165

The submitted claim must (1) describe the nature of the claim; (2) provide the date of installation of the unit; (3) furnish the name and contact information of the installation dealer or contractor; (4) provide proof that the claimant is the Original Purchaser or is the first subsequent owner and: (5) state the owner’s name, address, and telephone number.

Sources: Vistamark windows; Endura picture, single hung and slider product pages; Vistamark Limited Warranty (July 2023, PDF). Frame width is AdEx’s own measurement, not a Vistamark figure.

More from this job

Same home, more spots. Drag each slider to compare.

After: garage side of the same Colleyville home with new replacement windows
Before: garage side of the Colleyville home with its original windows
BeforeAfter
Garage side
After: back patio of the same Colleyville home with new replacement windows
Before: back patio of the Colleyville home with its original windows
BeforeAfter
Back patio
After: side wall of the same Colleyville home with new replacement windows
Before: side wall of the Colleyville home with its original windows
BeforeAfter
Side wall

Questions about this project

How much more sound do new windows block?

Compared with an old new-construction window (about STC 27), a standard dual-pane window (about STC 29) blocks roughly 1.6x more sound, and sound-upgrade glass (about STC 32–33) roughly 3.5x more. These are typical lab ratings, shown in the chart above, not measurements at this home.

What does Cardinal Lodz-366 glass do?

It’s a clear low-E glass that reflects heat and blocks much of the sun’s heat while letting in 65% of visible light. It blocks 95% of UV, which helps keep floors and furniture from fading. In a dual-pane argon unit its center-of-glass U-factor is 0.24 and SHGC is 0.27, per Cardinal.

How do I get an estimate for a project like this?

Two ways. Send photos of what needs work and get a Full Picture Estimate within 24 hours, with options, pricing and warranty in writing. Or book a home consultation and we’ll meet you at the house. Start here.