天然石クラッディング：過去に根ざしながらも、未来に向けて準備万端 - 天然石クラッディング

The longevity of stone puts any human concept of old age to shame. Stone creates a sense of permanence and solidity, even when worn and weathered. It’s been used throughout history as the structure and facade of buildings- buildings that have literally stood the test of time.

While natural stone has been the material of choice for millennia, glass has dominated commercial construction—especially large scale projects like skyscrapers—in recent years. But architects are increasingly reacting to this glut of glass by returning to stone for their projects. For many developers and architects, glass had become the default, a sterile, too obvious choice which resulted in a flat, texture-less and uninspired design.

ガラスから石への回帰も環境問題への配慮の結果である。ニューヨーク市長ビル・デブラシオは最近、 新たなガラス張りの高層ビルの建設を禁止する in the city, making New York the first city to mandate energy efficiency. But it won’t be the last: According to the United Nations, 40% of the world’s energy consumption can be attributed to buildings. Pressure to construct buildings in a sustainably responsible manner is being felt by developers and architects around the world.

30.5×30.5cm 珪石天然石小石モザイクタイル

INDIANA LIMESTONE – FULL COLOR BLEND™ プレキャストコンクリートのファサード | ヤンキースタジアム | 建築家: ポピュラス

“It’s pretty well known in the industry that those glass facade buildings are not energy efficient,” said Hugo Vega, vice president of Architectural Sales at Polycor. “Meaning that in the summer it becomes super hot and you need to have an extensive system of air conditioning and in the winter you need a lot of heating as compared to a traditional building with more stone.”

The design community has been embracing stone for facade design instead, and just in time, as changes in building codes and regulations are set to further tighten architects’ design choices. Natural stone plays an important role in the future of sustainable architecture thanks to its life-cycle, durability, ease of care, low maintenance, and energy efficiency— the list goes on. The minimal environmental impact that innovative cladding wall systems provide is another reason the building industry is moving back to natural materials.

Polycor 天然石は、さまざまなファサードの固定およびサポート システムに適用できます。その方法をご覧ください。

“Energy inefficient glass facades concerns are a good driver for the growing popularity of stone cladding,” said Vega.

Vega understands this continued demand for stone cladding better than just about anyone: he’s been the driving force behind the development of the cladding division of Polycor and he has an in-depth understanding of what architects and builders are looking for in their products.

BETHEL WHITE® そして CAMBRIAN BLACK® 既存の構造物の上に Eclad システムで 3cm の花崗岩パネルを設置 | TD ビル | 建築家: WZMH

“The type of stone will dictate possible finishes, thickness, and more,” said Vega. “For example, it’s inadvisable to use polished 3cm marble and expose it to the elements for cladding. Direct communication with selected quarries will help validate the block sizes and thus the maximum finished panel sizes, what natural features can be expected in the stone, and the availability of the material according to job size and phases.” Specification challenges can present themselves throughout a project, such as alternate stones being introduced by other parties and detracting from the initial design intent. Maintaining a close contact with the quarry teams helps ensure this is preserved. As Hugo points out, “Make sure to specify the true, branded names of the materials to avoid being supplied with undesired alternates.” The old days of calling out イタリア産大理石 doesn’t cut it anymore.

天然石クラッディングの革新の最前線

Stone cladding isn’t just the smart alternative to energy efficient glass, it’s also the simple choice, thanks to new cladding attachment systems.

“These new attachment systems allow stone to be used for lighter applications, when the structure has not been designed for a heavy full bed,” said Vega. “They also allow for a faster installation compared to traditional methods.“

革新的なクラッディングソリューションにより、デザインの可能性が広がります | 写真: ライトコアの薄切りインディアナ石灰岩をアルミニウムハニカム裏地に貼り付けました

外装のイノベーションは、コストのかかる輸送や長時間の設置といった煩雑さを省き、天然石の色と質感を取り入れるエレガントでコスト効率の高いソリューションを提供します。天然石の本物の特徴を体現しながらも、これらのシステムの一部は軽量で使いやすいため、建築家が現代の建築基準法で満たさなければならない厳しい要件に対応する賢い選択となります。

ポリコール天然石は、さまざまなファサードのアンカーやサポートシステムに適しています。 ポリコール採石場 and all through production, the stones are manufactured to each of our partner system’s specifications from ultra-thin profiles up to full thickness dimensional elements complimenting a wide range of facade structures.

外装用の石材を選ぶ際、建築家は外観、用途、プロジェクトの規模、強度、耐久性、性能など、多くの要素を考慮する必要があります。ファサードにポリコールの石材を選ぶことで、建築家は基盤岩から設置地点まで、サプライ チェーンの完全な所有権というメリットを享受できます。ポリコールのような会社と協力する価値は、当社が採石場を所有しているため、ファサードの仕様を開発する過程で建築家が抱く可能性のあるあらゆる質問や懸念に、2 ～ 3 人の仲介業者を介さずに直接回答できることです。

Polycor Bethel White® granite quarry | Bethel, VT

“We have a wide array of our own limestone, granite and marble, so architects can discuss with the source and get accurate and reliable information,” said Vega. “We fabricate ourselves and sell blocks to other fabricators, ensuring competitiveness of the offers, while preserving the design intent. We work with industry leaders like エクラッド、 ホフマン・ストーン and others to offer a complete cladding solution for the project.“

Vega は革新的な外装技術に興味を持ち、製造工場の研究開発の専門家と協力し、建物の内外どちらでも使用できるさまざまな厚さの天然石外装を製造しました。通常、独立したレールとクランプ システムを使用して固定されます。

Polycor’s stone veneer can be installed over solid facing, which eliminates the challenge of removing the original substructure in some cases. Some stone panels are cut thin, while still maintaining the authentic look and feel of a thicker stone without the heavy weight of a 3-6 inch deep stone veneer, making installation fast and simple. Polycor’s thin stones are compatible in many cladding configurations and are manufactured for systems like Litecore は、重量が半分以下の石材と 2 倍の速さで設置できるソリューションです。

画像提供: Litecore

Litecore システムを使用したハニカム上の石

これらの多用途の複合壁パネルには、極薄ベニヤにカットされたポリコール石が使用されています。層状のハニカムに接着され、アルミニウムシートとグラスファイバーメッシュの間に挟まれたパネルは、低密度、高強度、軽量のファサード システムを提供します。

KODIAK BROWN™ ultra thin 1cm granite with carbon fiber backing on Eclad system | Architect: Régis Côtés

Eclad および Elemex システムを使用した 1cm カーボン裏打ち石

Polycor 1cm カーボン ファイバー裏地付きスラブは、アルミニウムの代わりに接着された独自の裏地を使用した、超薄型、軽量、耐久性のある天然石製品です。この石パネルは、Eclad と Elemex の両方のクラッディング システムに統合できます。

GEORGIA MARBLE – WHITE CHEROKEE™and Indiana Limestone facade on precast concrete | 900 16th St. Washington, D.C. | Architect: Robert AM Stern

超高性能コンクリート上の石

3cm stone mechanically anchored to thin, precast concrete panels provides additional installation advantages. Companies such as Hoffman Stone systems are compatible with Polycor’s stones.

Polycor は、シンプルな壁からベンチ、優れた建築プロジェクト、高層ビルのロビーの内装まで、あらゆるプロジェクトを作成する専門知識を持っています。各ソリューションにより、建築家は石の表面を取り入れた革新的で持続可能かつ美観に優れた建物の外観を設計できます。

“These solutions can also be used interchangeably to blend with more traditional architectural elements and stone masonry construction such as full bed trim, cornices, lintels and things of that nature,” said Vega. “And again, once the material is specified, it can be used on any cladding system, traditional masonry and fabricated by pretty much all the fabricators operating on the market today. This way architects can lock in their design intent, and let engineers and builders establish means and methods to realize the design within budget.”