Pro Painting Case Study: Fallingwater^®

Designed in 1935, Fallingwater is considered one of the world’s great architectural landmarks.The multi-cantilevered masterpiece seems to hover magically over a pristine stream and stunning waterfall in western Pennsylvania’s Laurel Highlands.

One of the world's great architectural landmarks

Yet, beneath the home’s legendary beauty and its seamless integration with the surrounding woodlands lies a multitude of vexing coatings and waterproofing challenges. Since 2003, PPG has worked with the Western Pennsylvania Conservancy — the home’s owner and stewards — to meet those challenges with a variety of innovative coatings and sealing solutions, including a new palette of Fallingwater-inspired paint colors now available to the public.

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Fallingwater house cantilevered over a waterfall surrounded by green forest.

Safeguarding Against the Elements

Because Fallingwater is continuously exposed to changes in temperatures and humidity from the waterfall below, the home historically has been fraught with problems related to leaks and mold. For instance, when PPG first examined the home, they discovered that the concrete living room walls that cantilever over the stream were plagued with efflorescence, which are highly damaging, alkaline-soluble salts that formed as moisture infiltrated the concrete.For decades, problems such as these have complicated the task of maintaining Fallingwater in its original condition, a mission made even more complex by the owners’ and PPG’s shared commitment to protecting Fallingwater with the industry’s most modern preservation methods.

Spacious living room with large windows, stone pillar, modern ceiling lights, and cozy seating including sofas and floor cushions.

Before the first stroke of paint could be applied, PPG performed extensive biological testing on Fallingwater to identify environmentally friendly cleaning treatments that could be used on the building’s stained and damaged surfaces.

That was followed by the identification and development of liquid-applied vapor barriers for interior and exterior surfaces, as well as anti-microbial and alkali-resistant primers to restore and preserve those surfaces.

Cozy living room with wooden furniture, colorful pillows on a dark blue sofa, a small wooden table with books and a vase of white lilies, and a patterned rug.

Extensive Research and Design Expertise

In addition to using their products and expertise to resolve technical issues, PPG also employed its extensive color-matching capabilities to formulate two colors specially selected to blend Fallingwater into its forest setting—ochre for the concrete and his signature Fallingwater^® Red color for the steel surfaces. To assist in this process, PPG placed more than 100 test patches in unobtrusive locations throughout the structure to see how they would be affected by its environment. This testing was essential to helping PPG develop the coating systems that now keep Fallingwater authentic to its creator’s original vision.

Simple hexagon shape with a light brown fill and a gray border on a white background.

Covered Wagon

The ochre paints on Fallingwater have built-in UV resistance because of the titanium pigments in the system.

Solid hexagonal shape filled with a muted reddish-brown color.

Fallingwater^® Red

The Fallingwater® Red on the exterior metal trim required particularly robust colors designed for the home’s environment.

PURE PERFORMANCE^®

Today, the preservation of Fallingwater celebrates the architects’ vision in another way—by showcasing the shift away from the VOC-emitting coatings of the past to the more environmentally friendly paints and sealants of the present.

MANOR HALL^®

The same primer is used on the exterior walls, combined with MANOR HALL® exterior paint, which features exceptional coverage and hide, paired with excellent durability.

A Commitment to Preserving History

To ensure historical exactness, PPG custom-mixes and matches the paint colors at Fallingwater every time they need to be applied, even for minor repairs. Based on its work with Fallingwater, PPG has developed a new palette of colors inspired by the property, featuring tones such as Red Gumball, Moth Gray, Dusty Trail, Mountain Forest and, of course, Fallingwater^® Red. Those colors are now available to architects, specifiers and the public.