Tredore Barns is an old farm building at St Issey near Wadebridge in Cornwall. At least it was until it was acquired and turned into a family home.
The entire project is the brainchild of Alan Trotter, a developer with extensive experience of high-spec building materials. Although he initially planned to sell the property, Trotter now lives there.
From the point of view of lighting, Trotter was convinced that LEDs would be a good way to save energy. He devised a lighting scheme with two key elements – LED pendants in the apex of the barn roof, and LED tape around the top of the walls where they meet the roof, which creates an ambient light.
An initial test in a single room proved that LED sources would be bright enough to light the space, and the installation went ahead.
At the apex of the barn roof are 76 black Pendum LED fittings from Basis Lighting – each with a 3.6W, 3000K LED lamp from BLV, a replacement for an MR16 source. Tom Parker of Basis, who advised Trotter on the lighting design, says: ‘It’s a pendant, so we had to make sure that the driver and the LED lamp were compatible. The insulation in the roof had to be pushed back to make sure the driver didn’t overheat.’
In the main living space, LED tape runs along the top of the walls. Parker says: ‘They have built in a detail at the top of the wall to accept it. The roof goes down behind the wall and that allows the tape to be mounted.’
Two other notable light sources are used in the Tredore Barns scheme. The first is the Promo, a mains voltage alternative to low-voltage stem lighting such as Pendum. ‘They stick out of the wall and there are five in a row,’ says Parker. ‘They use mains GU10 lamps. We used them because there wasn’t anywhere to put a transformer or a driver.
‘They actually work quite well because they emit some light from the back, which an LED doesn’t. Not only that, they have good colour rendering.’
There are 46 Promos at Tredore house, rated at 40W.
In the kitchen area, there is a trio of decorative Loros glass pendant fittings rated at 52W each. Although they contain conventional light sources at present, they may in future be replaced with compact fluorescent lamps.
The combination of sources creates a striking, but efficient installation.
A central feature of the project is the staircase, which appears to float a few inches from the wall.
‘The stair detail is something that Alan drew up,’ says Parker. ‘There’s a white metal bar coming out from the wall, acting as a cantilever. LEDs are wired loosely together and mounted inside a recess at one end of the tread.’ Light from the LEDs is reflected from the wall, creating a glow between each tread and the wall, hiding the metal bar.
Also, the handrail creates a similar effect, this time with LEDs housed in a recess that create a glow on the wall.