Make your building airtight and windproof

On every construction site, cables, wiring and pipes pass through the airtight and windtight building envelope. Only when these penetrations are perfectly airtight is a leak-free building envelope guaranteed. That’s exactly why SIGA now has the new Fentrim^® grommets.

Like FHS Treppen, FHS Holzbau sees itself as a "partner of the trade" and has a lot in common with SIGA. FHS and SIGA are both family businesses that like to have development, production and sales in their own hands.

Many architecture firms promote the low-carbon credentials of their work. But what lies behind these promises? Kate de Selincourt talked to a firm in Scotland that believes measurement is the best way to back words with action.