The Thermo Clad line of windows and doors is Zola’s most popular seller. For many customers, this product line hits the sweet spot in terms of value, performance, and craftsmanship. These windows and doors have become the industry’s go-to choice for high-performance buildings. Zola’s Thermo Clad features a 88mm deep frame and triple glazing.
% of visible light transmitted
number of seals
expected service life in years
"Working with Zola Windows has been a stunningly positive experience. Zola offers vastly superior service and responsiveness over any other window provider I have worked with. The price is feasible, the windows are stunning, and the performance is everything a Certified Passive House consultant could hope for, not to mention the color options that come standard, it's enough to make an architect's heart sing…"Tessa Smith,
"We have had a terrific experience with Zola Windows. Our latest Passive House project in Santa Fe, NM called for custom color on all windows with one picture window being exceptionally large. The windows arrived on time, on budget and the client loves the color! We highly recommend Zola's on-site service call. Zola sent an technician and with his expertise the windows and exterior doors were set quickly and passed the Blower Door Test with a 0.4 @ 50 Pascal. We highly recommend the product and the company and look forward to working with them more in the future. In our opinion, the price and performance are unbeatable."Vahid Mojarrab,
"These windows clearly have the engineering, quality, and performance that is far superior to any North American brand we have seen thus far."Chris Price,
"The tilt-turn windows are the best — they’re versatile and function well for every need. …We love the fact that we can open them to get a breeze without having a window swung into the house. They’re also a point of interest for our guests, many of whom have never seen tilt-turn windows and think it’s a brilliant idea, as do we."Stephanie Farris,
A selection of Zola Thermo Clad projects:
This product enjoys great popularity in both the energy-efficient and luxury markets. With superior components, design, engineering, and craftsmanship, Thermo Clad makes it possible to combine superior aesthetics and operability with energy-efficiency for the discerning home-owner.
living building challenge compatibility
The ThermoClad is compatible with the Living Building Challenge, achieving LBC compatibility by avoiding red-listed materials, and participating in the advancement of sustainable building products for both new construction and renovation.
The ThermoClad line combines beautiful wood craftsmanship with the outstanding durability and longevity of aluminum cladding to create windows and doors that are both aesthetically superior and long-lasting.
Zola's ThermoClad line is designed to offer architects great flexibility to realize their designs and provide homeowners with outstanding performance and luxurious craftsmanship. Design, manufacturing and finish quality are hallmarks of the ThermoClad line.
large expanse openings
Thermo Clad offers panels up to 11’ high in the sliding doors engineered as Lift Slide units that offer an easy gliding mechanism. Standard units can be built up to 40’ in width, and custom versions can be curved or open over a corner. Our Breeze Panel Folding Doors achieve the greatest openable area of any door system, and can fold in or out. Tilt & Turn units can be up to 9’ high and nearly 6’ wide.
Thermo Clad is available with a concealed hinge and child-lock hardware. It comes with fully adjustable hardware sets, making it flexible for projects needing to find the perfect fit, with built-in long term operation durability.
Thermo Clad is one of the industries highest performing windows, with R-11 glass in an industry-leading 18mm spacer thickness for optimized overall performance. Compare this with domestic Energy Star glass that have glass R-values averaging 3.2. Thermo Clad has an overall U-value of 0.143 BTU/hr.sqft and 0.54 SHGC with standard glass as tested by an independent lab.
Custom cast bronze handles you can design
Besides our standard and upgraded handles, you can order your windows with Italian hand-made, solid bronze Zolini handles. The ultimate in luxury, these handles can be made per your custom design and finished in oil-rubbed bronze and antique bronze. We can also hand plate your handles with silver.
Stain and paint options to fit your design
All units come fully finished with stain or solid paint. Zola is proud to offer Zola NakedTM Wood, our proprietary finish that looks and feels like untreated wood while being fully protected (shown, pine on top and oak below). Beyond this, a wide range of stain colors is available, and if you prefer a solid paint, you can make your selection from over three hundred shades.
Our woods make our windows
Careful wood selection is paramount to making a great window. We use pine, fir, larch, European white oak, meranti (asian mahogany) and sapele (african mahogany) to make our windows. All our European woods are dense grain, northern species. Each frame is made out of three to four laminations of wood for unsurpassed durability, fit and finish.
Explore our options:
Zola offers a wide selection of hardware options to match your style. Our standard handles are aluminum handles with a metallic finish of your choice. Many customers upgrade to our modern stainless steel handle or our timeless chrome handle. For the very finest selection, consider our Zolini handles. These hand crafted handles are made in Italy, of finest Bronze cast in a traditional mold. Designs span from classic to modern, and finishes can be rubbed (a customer favorite), plated in real silver, or aged. The Zolini designs shown here are only a small selection of what is available. In fact, you can even design your own handles and we create a mold for you.
Zola strongly recommends concealed (hidden) hinges for tilt&turn windows. If 180 degrees of opening angle are required, we need to use classic hinges with a plastic hinge cap. For very large openings, typically over 28sqft, a heavy duty hinge system ,as shown, is required. This hinge does not utilize hinge caps and is crafted from metal in a modern design, available in silver only.
On doors, we typically use three to four hinges, hinge caps allow you to adjust the color to match your decor. Stainless steel hinges or hidden hinges for doors are available on request.
Divided lites and simulated divided lites
Zola offer a wide variety of simulated and actual divided lites. True divided lites separate the glass. Simulated divided lites do not actually divide the glass, but are a glued on bar on the inside and outside (in the case of an aluminum clad window, it would be an aluminum profile on the outside and a wood profile from the inside) as well as a spacerbar between the glass panes, giving the illusion of a true divided lite. This is the most common option. Note that in some high altitude locations and window sizes the spacer bars have to be omitted.
Divided lites, whether true or simulated, add significant cost to your window package, depending on frequency and layout. Cost increases of 30% are not uncommon. Consider using less or no divided lites and enjoy an uninterrupted view out of your window. A lower cost alternative is to use stick on bars (same as divided lite bars but without the spacer) or dividing bars solely between the glass panes, however, these solutions do not look as good as true or simulated divided lites.
For the aluminum cladding on your windows, Zola offers many standard or optional color choices. In addition to the colors shown, any of over 300 RAL colors can be realized. Our customers especially enjoy the anthracite colors in optional price group 1 – the matte, yet slightly sparkling appearance looks great in varying light conditions.
Zola offers a wide selection of fine woods for your window and door package. Many of them come standard with 100% FCS ® certification (FSC-C112130). Ask about our FSC® availability. For upgraded wood options, we offer Larch, Meranti, European Oak and Sapele. If you have custom wood needs, please contact our team.
Zola ships all windows fully finished, either stained or painted. This way, we can make sure to protect every nook and cranny, as we spray in a temperature controlled booth prior to installing hardware, cladding or glass. The result is a superior, even and highly durable finish. If you choose to have your windows painted, you can select any RAL color or submit a chip for a custom color. For stains, please select any of Zola’s beautiful water based stains below. We especially recommend the Zola Naked TM stain for a matte, unfinished look that offers full protection.
For Tilt & Turn windows, we recommend our snap in, aluminum framed screens. The frame will be color matched to your cladding (it is shown in white in the picture for clarity), and the corners are miter cut and precision jointed, eliminating plastic connectors that break easily. The screen is easy to remove in winter from the inside. Seen from the inside, the screen frame does not impede on the glass area, except in the Panoramic View line of windows. For the screen mesh we use Phifer UltraVue, the clearest mesh we can find on the market today.
For single or double swing doors we recommend either our roll-to-the -side or pleated screen system. The pleated system is more expensive, but preferred by most customers, because the threshold added to guide the screen is only approximately 5/16″ high, and the look matches the lift slide pleated screen better. Because either system stashes to the side, you never need to see the screen mesh when you don’t need it, which makes these screens much more desirable than a screen door.
For Lift and Slide doors we can also offer our factory fitted rolling screen frames. These frames are the size of a door panel, and roll over the fixed part of the sliding door when not in use. The screen mesh is Phifer Ultravue, the clearest mesh we can find on the market today. If you prefer to not see your screen mesh unless it is in use, we instead recommend our pleated or electrically operated roll down screen detailed below.
The pleated screen system for Lift and Slide doors, BreezepanelTM folding wall systems, and large swing doors. This pleated screen can be up to 11′ high, and stows in a small pocket to the side. Up to 16′ of screen can disappear into one side, allowing for a total of 32′ of opening if screens are stowed both to the left and right. These screens are fitted by our technicians after install. Purchase of a Zola Tech service visit with your window package is required if you opt for these screens. Smaller lift slide or Breezepanel openings that are up to 8′ high and 10′ wide are shipped pre-mounted and feature a low profile, 5/16″ threshold.
The electrically operated, Zola roll down screen provides utmost luxury and flexibility. The screen can be up to 10’6″ high and 15′ wide, and the frame pieces will be color matched to your window. When ordered at the time of placing your window order, these screens can be installed on your window units at the factory (please note that oversized doors that ship as knock-down kits may require partial assembly of the screen system as well).
Safety glazing refers to glass that minimizes bodily injury in the case of breakage. This can be achieved by either tempering glass, or laminating glass. Tempered glass is incredibly strong, and if it breaks, breaks into thousands of small crumbles. A good example of tempered glass are the side windows of a car. Laminated glass consists of several sheets of glass, glued togehter with a plastic film in between. If broken, it shatters but stays in place (think windshield of a car). As a standard, Zola recommends and uses tempered glass where required. In a safety glass package, all panes must be tempered or laminated.
Your home should be your sanctuary. Our high quality, European-manufactured glass and triple sealed frames provide a level of sound dampening of outdoor noise pollution that is exceptional on the North American market. Noise mitigation is particularly important inbuildings near busy streets or highways, train stations, and airports. Whether you are concerned with minor sound dampening or you live in an urban environment where the highest acoustical performance is required, we are sure to have a glass solution that fits your needs.
We use asymmetrical glass assemblies containing one or more laminated glass panes to tailor the sound dampening to your needs.
Security in windows and doors against break ins requires strong hardware and burglar resistant glass. Even our standard multi point locking packages are no match for most thieves, but we can upgrade your window packages with even more locking points and highly crowbar resistant interlocking hardware assemblies at a low upcharge. Glazing can also be customized to prevent break ins and many types are tested to withstand specific tools or even firearms.
Please find our selection of privacy glass options below. Custom designs in matte glass are also available. Please note that not all privacy glass options are available in oversized glass.
Download CAD details, install details and certifications: