How much more light does T-Classic Slim let in?

T-Classic Slim lets in 27% more daylight thanks to its slim build with a build depth of only 105 mm and the narrowest movable mullion of 42 mm.

Can the 3rd seal be added after installation?

Yes — with T-Classic Slim, the third seal can be fitted after installation, allowing later improvement of the insulation parameters.

PVC balcony doors

T-Classic Slim

T-Classic Slim are balcony doors with a slim build that let in 27% more daylight than standard profiles. More light means lower electricity bills.

0.85

Uw (W/m²K)

0.7 with warm edge

Ug (W/m²K)

Colours

Call: +48 695 550 044 Compare

PVC balcony doors

T-Classic Slim are balcony doors with a slim build that let in 27% more daylight than standard profiles. More light means lower electricity bills.

0.85

Uw (W/m²K)

0.7 with warm edge

Ug (W/m²K)

Colours

Call: +48 695 550 044 Compare

StandardRenovation Monoblock

Why T-Classic Slim

Key features

27% more daylight — slim build

Oval frame — classic design

Invisible weld seams — aesthetic look

7-chamber profile construction

Frame depth 70 mm, build height 105 mm

PVC threshold 70 mm, optional low aluminium threshold 20 mm

Movable mullion 42 mm (joining at the junction 112 mm)

3rd seal can be added after installation

Titanium Technology — guarantee of durability and rigidity

Class S certificate — resistance to climatic conditions

PVC profiles free from lead, cadmium and heavy metals

Anti-burglary hooks as standard

Application

Ideal for

Interior illumination

27% more daylight thanks to slim build

Lower bills

More natural light = lower energy consumption

Small rooms

Slim profile visually enlarges the room

Modern interiors

Minimalist design with oval edges

Technical data

Specifications — T-Classic Slim Standard

Uw values per DIN EN ISO 10077-2 for single-leaf balcony door 1000×2100 mm

Option	Seals	Glazing	Uw [W/m²K]	Ug [W/m²K]
superwarmBest	3	3	0.85	0.7 with warm edge
standard+	2	3	0.98	0.7
standard	2	2	1.3	1.1

Parameter	Value	Description
Profile construction	7-chamber	Slim construction with excellent insulation
Frame depth	70 mm	Slim profile lets in more light
Build height	105 mm	Lowest build height in the Classic family
Threshold	70 mm PVC / 20 mm aluminium	Standard threshold with optional low aluminium threshold
Movable mullion	42 mm	The narrowest mullion — joining at the junction 112 mm
Available colours	16 colours	Full palette of decor foils

Personalisation

Available colours

T-Classic Slim — available in 16 colours — from classic white to dark wood-effect finishes.

T-Classic Slim in colour White Foil Textured

Selected colour: White Foil Textured

The colour swatches and product visualisations shown above do not fully reflect the actual colours or the real material structure — they are intended only as an indicative visual reference of the final result.

Comparison

T-Classic Slim vs other balcony door systems

Compare balcony door systems — from the classic T-Classic to the energy-efficient T-Energy and T-Perfekt.

System	Chambers	Uw (best)	Colours	Highlights
T-Classic	—	0.87	14	Oval edges, Invisible weld seams	View
T-Classic Forte	—	0.89	15	Two-sided handle, Aluminium overlay RAL	View
T-Classic Plus	—	0.75	16	8-chamber profile, Overlapping water bar	View
T-Classic SlimCurrent	—	0.85	16	27% more light, Slim build	—
T-Comfort	—	0.84	16	Simple edges, Aluminium overlay L/C	View
T-Energy	—	0.58	16	Uw from 0.58, Passive house	View
T-Perfekt	—	0.69	16	3-stage sealing, New product	View
T-Perfekt Forte	—	0.74	16	Two-sided handle, 3-stage sealing	View

FAQ

Frequently Asked Questions

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