James Hardie Siding denver



CHICAGO (June 15, 2017) — James Hardie Building Products Inc., the leader in fiber cement siding and trim, has been named the “Greenest Siding Brand” in the Green Builder® Media annual Readers’ Choice survey for the sixth consecutive year. The Readers’ Choice survey polls green building professionals in the residential construction industry who test products for a living and provide informed, credible recommendations that other industry professionals can rely on. Readers’ Choice surveyors selected James Hardie more than any other brand as the greenest siding in the industry, beating out 10 different competitors, including LP SmartSide.
  For more information about the survey results, visit: greenbuildermedia.com. To learn more about James Hardie, visit jameshardie.com.  

fiber cement siding denver

A Reputation Built on Trust

For decades, James Hardie fiber cement products have been used to create better places to live. Each home with Hardie Products stands as a testament to our uncompromising quality. That proven track record has earned the loyalty of millions of homeowners and the endorsements of trusted authorities across the building industry.


*Remodeling magazine’s ‘Cost vs. Value Report’ states that re-siding a home with fiber cement siding provides the #1 return on investment for projects in the upscale category.


EverWood® Interior Finish


The look, the warmth, the color

Introducing EverWood, our revolutionary interior wood grain finish that looks, feels, paints and stains like wood, yet is completely low maintenance for years of lasting beauty. Its natural appearance beautifully complements any interior woodwork in your home. Now you can enjoy all the benefits of wood in a superior, low-maintenance replacement window by Infinity from Marvin.

Stain to Match

From maple to mahogany, EverWood lets you match nearly any wood color with ease. Now you can perfectly complement your home’s existing woodwork with the beauty and low-maintenance performance of EverWood.

Introducing LoĒ-i89 Glass for windows

Our enhanced performance glass …is even more enhanced.

Double-Pane, Clear, Air 0.48
Double-Pane w/LoĒ³-366, Argon 0.24
Double-Pane w/LoĒ³-366 and LoĒ-i89, Air 0.23
Double-Pane w/LoĒ³-366 and LoĒ-i89, Argon 0.20
7/8″ IG UNIT
Triple-Pane, Clear 0.37
Triple-Pane w/LoĒ³-366, Argon 0.25
Triple-Pane w/LoĒ³-366, LoĒ-180, Argon 0.20
Triple-Pane w/LoĒ³-366, LoĒ-180, LoĒ-i89, Argon 0.17

Introducing LoĒ-i89™, our new energy-saving 4th surface (roomside) coated glass. It offers more light transmittance, less reflectance and it now is available in a less expensive annealed version.

Yet it still delivers a center of glass U-factor of just 0.20 when coupled with our LoĒ³ or LoĒ² glass and argon fill in a double-pane unit. Without argon and with or without capillary tubes, the unit still delivers a U-factor of just 0.23 – perfect for high altitudes.

So if you’re ENERGY STAR compliant today, by adding LoĒ-i89 you’ll be compliant tomorrow as well.

What’s more, LoĒ-i89 is easy to clean and there’s no haze to mar the view. That’s our new LoĒ-i89, our enhanced enhanced performance glass.

Turn your double-pane windows into triple-pane performers.

There’s no need to go to triple-pane windows to meet the various energy-saving guidelines. No need to invest in redesigning your windows and altering your manufacturing processes either. A double-pane IG unit with LoĒ-i89 can meet the guidelines.

LoĒ-i89 is sputtered onto the indoor lite, the #4 surface, thus reflecting escaping heat back into the room and lowering U-factors. Coupled with our LoĒ² or LoĒ³ glass and argon fill, this double-pane unit delivers performance much better than clear triple-pane – a center of glass U-factor of just 0.20 compared to 0.37 with clear triple-pane.

To surpass the U-factor performance of our LoĒ-i89 double-pane unit, you would need to go to a triple-pane unit with a low-E coating in each gap.

Meet today’s strictest energy efficiency guidelines.

With a center of glass U-factor of only 0.20 (0.23 without argon) and SHGC of just 0.25, an insulating glass unit with LoĒ³-366 and LoĒ-i89 meets the most stringent energy standards – without going to a triple-pane unit.

This allows you to offer more double-pane window options that can meet the proposed ENERGY STAR guidelines throughout North America.

The advantages are more than clear.

In addition to providing maximum energy efficiency in a double-pane unit, LoĒ-i89 offers several other customer-pleasing benefits.

Its surface is smooth, making it easier to remove label residue and clean. And perhaps most importantly, there’s no haze to mar the view.

Naturally Cardinal IG units with LoĒ-i89 live up to the Cardinal reputation for long-range durability, delivering the industry’s lowest failure rate – only 0.20% over 20 years.

Give homeowners another reason to love LoĒ-i89 units – include Neat® naturally clean glass on the outside. Your windows stay cleaner longer and clean easier. Finally, protect your windows in transit as well as on the job site with Preserve® protective film.

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  Glass Performance   Visible Light
Solar Heat Gain
(Air / Argon)
Fade UV Fade ISO  
  LoĒ-180, LoĒ-i89   77% 0.62 0.24 / 0.21 0.27 0.61  
  LoĒ²-272, LoĒ-i89   70% 0.41 0.23 / 0.20 0.16 0.53  
  LoĒ²-270, LoĒ-i89   69% 0.36 0.23 / 0.20 0.14 0.51  
  LoĒ³-366, LoĒ-i89   63% 0.27 0.23 / 0.20 0.05 0.41    
  7/8″ Triple-Pane              
LoĒ-180, LoĒ-180, LoĒ-i89   68% 0.50 0.21 / 0.17 0.13 0.49  
LoĒ²-272, LoĒ-180, LoĒ-i89   62% 0.34 0.21 / 0.17 0.08 0.43  
LoĒ²-270, LoĒ-180, LoĒ-i89   60% 0.30 0.21 / 0.17 0.07 0.42  
LoĒ³-366, LoĒ-180, LoĒ-i89   56% 0.22 0.21 / 0.17 0.02 0.35    

Take your window U-factors to a new low – with LoĒ-i89.

LoĒ-i89 on the 4th surface of your windows allows you to get near triple-pane performance in a double-pane unit, and meet the toughest energy guidelines as well. Finally, LoĒ-i89 can be purchased in hurricane-resistant laminated glass in a variety of shapes and sizes.

To learn more about LoĒ-i89 and other Cardinal glass products, ask your contractor or architect.

Gravina’s Window Center

Great people to work with.  We recently did a full frame replacement of all the windows in our home with Infinity from Marvin Ultrex Fiberglass windows.  The windows are wonderful, the installation was  efficient and well done and the final finish (stained) was nicely done.  Gravina’s Window Center was recommended to us by friends and we can easily recommend to others. M & M, Littleton

Above review from YELP

Since 1973, Gravina’s Window Center has been the Denver Metro Area’s most friendly and reliable window replacement company.

Here at Gravina’s, we build long-standing relationships by taking the time to honor the values and needs of our clients. We are confident that we can offer you the highest quality replacement windows and doors in addition to the most personable and knowledgeable service.

In fact, Gravina’s Window Center has set the window and door replacement industry standard through honoring the values of a third generation family business. This means that here at Gravina’s Window Center, we treat our clients with the same attention and respect we would treat a member of our own family. From your initial purchase through your repeat business to come, we look forward to making your window and door replacement door dreams come true