04.08.2025. Who hasn’t dreamt of a sun-drenched terrace or a balcony that glows golden at dawn? South-oriented spaces offer the best of natural light—until the season's fiercest heat demands a clever countermeasure.

The sun beats down on south-facing façades, the air grows still and interiors risk turning into ovens… That’s where our Bosse and Tali hardwood come in, with shutters opening like a fan to wrap the façade in a fluid skin of shade and privacy.

More than a feature, they’re a performance. Made from dense, durable tropical hardwoods, these shutters do more than filter sunlight—they regulate life. Let in the morning glow, block out the afternoon blaze. Shield from prying eyes or open wide to the world. The result? A home that breathes, flexes and flows with its residents’ needs.

Revolving hardwood shutters soften sound, reduce dust intrusion and act as a buffer against the ever-changing weather. They offer a natural, low-tech response to high-tech demands—a modern way of cooling without consuming.

In a world chasing smart systems and synthetic screens, there’s quiet power in returning to natural solutions that have stood the test of time. Crafted from responsibly sourced wood, these shutters elevate design while anchoring it in sustainability.

When the dog days bark, meet the challenge with grace: let hardwood speak.

About Interholco

The valorisation of a natural forest of 1.16 million hectares in the Republic of Congo Brazzaville is our DNA here at INTERHOLCO. As an FSC^® (Forest Stewardship Council^®, FSC^® C022952) and PEFC and PAFC certified producer, INTERHOLCO is a well-established player in the trade of its edged boules, sawn timber, glue laminated scantlings, decking boards and more.

We are a leading provider of high-quality wood products ‘Made in Africa’ holding a verified environmental and health performance statement (FDES requirement in France). Our teams carefully manage the supply chain from forest to customer. Our story is fully illustrated by enabling the people living in Ngombe to access better life conditions. We make it possible to design and build a healthy living environment with bio-based, eco-friendly materials, one of the real solutions for the planet and climate. Follow us on LinkedIn

Communication contact Interholco

Tullia Baldassarri Höger von Högersthal
INTERHOLCO AG, Neuhofstr. 25, 6340 Baar, Switzerland
Tel.: +41 (0)41 767 03 82 
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.