Naturo · Naturo ALU

Timber sliding systems

Natural timber sliding systems are the right choice for generous interiors where a large glazed area, a refined look and environmentally sound materials all matter.

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Systems and profiles

Three HST lift-and-slide systems, 68 and 80 mm deep. Naturo in exposed timber; the ALU version adds an external aluminium cover for more exposed openings

Naturo 68 HST

Naturo 80 HST

Naturo 80 HST ALU

The nobility of timber, the engineering of today

Timber is a living, warm and timeless material, and when properly worked it matches any system for insulation and durability. We combine high-stability laminated timber with high-performance Saint-Gobain glazing and European Roto and GU hardware.

Every unit receives four protective coats against moisture and UV, giving decades of service life with the authentic beauty of solid wood.

Sustainable material

Timber from responsible, certified sources, with a low carbon footprint.

Conforto natural

Uw down to about 1.0 W/m²K with an 80 mm profile and triple glazing.

Design freedom

Qualquer RAL/NCS, tons naturais e geometrias arqueadas ou redondas.

Repairable for decades

Unlike synthetics, timber is renewed with simple maintenance.

Timber species

We select the species according to use, exposure and the intended finish — from pale tones for clear varnishes to dense hardwoods for coastal locations.

PinhoEconomical and versatile, ideal for opaque finishes and interiors.

AbetoLight and stable with an even grain, excellent for pale lacquered finishes.

MerantiA dense tropical hardwood resistant to moisture, the first choice for coastal projects.

CarvalhoNoble and durable, with a pronounced grain for premium clear finishes.

Profile section

We mostly use laminated timber bonded in three or four layers: it increases stability, prevents movement with humidity and allows arched and curved shapes.

Solid timberSolid pineNo visible joints, long sections free of natural defects, made for clear varnishes that show the grain.

Finger-jointed laminateFinger-jointed pineDefect-free sections joined end to end by finger joints: maximum stability, ideal for opaque finishes.

SKLO technical note: for openings over 3 m, or with strong sun exposure, we recommend 80 mm laminate — the dimensional stability is well worth the extra cost.

Glazing bars

They give a window character and echo classical architecture. We choose the type according to the look you want and the energy performance required.

StructuralTimber bars in the sash colour, physically dividing the opening into panes.

Inside the glassAluminium bars inside the sealed unit. Widths of 8, 18, 26 and 45 mm.

BondedBonded to the glass with a warm-edge or silver central spacer, in the sash colour.

With external aluminium cladding the bars are aluminium outside and timber inside — less maintenance, with the warmth of wood indoors.

Swisspacer Ultimate spacer

Alongside the standard aluminium spacer we offer a high-performance warm-edge spacer. It reduces condensation around the edge of the glass and measurably lowers heat transfer across the whole window.

Ψ 0,03W/m²·K

Available in a wide range of RAL colours to match the frame.

Production details

Hardware, decorative transoms and corner joints photographed on our production line

Arched timber frames in the finishing booth

Pine timber sliding window on the production line

Sill and hardware detail of a pine window

See the timber sliding systems on video

A glass sash several metres wide that slides with two fingers. The video shows how it works, how the threshold is set in, and the timber finish — filmed on site.