Plywood frames create a triangle pattern inside extension

Search results:

Plywood frames create a pattern of triangles inside house extension by NOJI Architects

Irish studio NOJI Architects experimented with plywood to create the three different kinds of structure that frame this extension to a terraced house in Dublin.

Scale of Ply by NOJI Architects

Named Scale of Ply, the project employs a trio of different structural frameworks, all built using plywood: a system of glue-laminated (glulam) beams, a prefabricated diagrid and a skewed lattice.

Scale of Ply by NOJI Architects

NOJI Architects developed the complicated form after being asked to extend and rationalise the rear of a two-storey Victorian-built residence with adjoining properties on both sides.

Scale of Ply by NOJI Architects

"This house was dark and damp, with a poorly constructed conservatory as the main source of light and link to the garden," explained NOJI Architects, which is led by architect John Monahan.

Scale of Ply by NOJI Architects

The old conservatory was removed and existing interior spaces opened out, creating a large open-plan kitchen and dining space with a sheltered terrace and a generous window seat overlooking the garden.

Scale of Ply by NOJI Architects

"The layout maximises the south-west orientation, and allows both internal window seat and external covered areas to relate to the garden," said the studio.

Scale of Ply by NOJI Architects

The three different plywood structures each perform a different task – the glulam beams support the first floor above, the diagrid creates a ceiling above the kitchen, and the lattice forms the walls and roof of the extension.

Scale of Ply by NOJI Architects

The only steel component needed was a column that supports the two glulam beams at the point where they meet.

Scale of Ply by NOJI Architects

Sheets of plywood were also used to line the interior of the space, but were slotted behind the framework rather than in front, leaving the triangular modules exposed. In some places, the panels act as a bracing.

Scale of Ply by NOJI Architects

"The project uses plywood as a primary and secondary structural material, and as an internal skin," added the studio.

Scale of Ply by NOJI Architects

Glazing was added between some of the beams that make up the lattice, forming skylights above the dining table. Seating is provided here by a custom-built bench.

Scale of Ply by NOJI Architects

The garden-facing end wall is fully glazed. One side steps outwards, framing the upholstered window seat.

Scale of Ply by NOJI Architects

Glazed doors with black-painted frames open out to the small outdoor dining deck, while the patio beyond creates an intermediate space between the house and the garden.

Scale of Ply by NOJI Architects
Structural diagram

Photography is by Alice Clancy.


Project credits:

Architects: John Monahan and Claire Faulkner
OIKOS Furniture: David Coyne and Dara Burke
Engineer: Cora Engineers- John Casey

Scale of Ply by NOJI Architects
Site plan – click for larger image
Scale of Ply by NOJI Architects
Roof and floor plans – click for larger image
Scale of Ply by NOJI Architects
Section – click for larger image