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Structural assemblies installed over gravel/crushed stone beds

Loose installation on Schlüter®-TROBA in gravel/crushed stone beds

The sloped support structure is protected against permeating water with a waterproofing assembly that meets the requirements of DIN 18195. 

Schlüter®-TROBA is installed between the waterproofing layer and the gravel or crushed stone as a protective separating layer. It protects the waterproofing layer from mechanical impact and prevents impressions from gravel or crushed stone pieces. Thanks to this drainage function, seepage is removed quickly and reliably to prevent the formation of “ice concrete.” 

The drainage channel Schlüter®-TROBA-LINE prevents water from pooling at doorways and wall transitions.

  1. Cantilevered concrete slab with sloped screed (1a)

    The construction has to be sufficiently sloped (1.5 - 2%) to allow for proper drainage.

  2. Waterproofing assembly according to DIN 18195.

    Alternative: Waterproofing with Schlüter®-KERDI.

  3. Schlüter®-TROBA

    A protective drainage layer installed over waterproofing assemblies as an underlayment for crushed stone or gravel. It consists of a high impact, studded polyethylene mat with openings to the drainage channels. It is important to ensure a drainage channel.

  4. Gravel or crushed stone bed.

  5. Schlüter®-TROBA-LINE

    Drainage channel for low transition heights to door elements.

  1. Schlüter®-TROBA-LINE-TLK-E

    Stainless steel gravel containment profile.

  2. Cap profile over the waterproofing layer

    (Sealed screw connection)

  3. Large format self supporting pavers

    Made of concrete, natural stone or ceramic material.

  4. Schlüter®-BARA-RKLT

    Angled finishing profile with drainage openings for loosely installed pavers.

  5. Schlüter®-BARIN

    Gutter system for draining balconies and terraces; made of colour coated aluminium with full set of matching system accessories.

Lose Verlegung auf Schlüter -TROBA in Kies / Splitt

The assembly shown here only applies to cantilevered balconies and ground level terraces (with modified edge assemblies).

Roof terrace assemblies must comply with all technical standards for insulation and waterproofing as specified in DIN 18195.

Contact Schlüter-Systems Ltd

Units 3-5 Bardon 22,
Beveridge Lane, Coalville,
Leicestershire, LE67 1TE
Phone: +44 (0) 1530 813396

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