Inspection Boxes (Extensive)

These square inspection boxes satisfy the requirements of FLL standard values, and can be manufactured in various heights up to 30 cm.

Inspection Boxes (Intensive)

These inspection boxes are round, and of larger dimensions than the square ones to ease access to the down pipes. These boxes, which comply with FLL standards, have a minimum height of 30 cm.

Inspection Box Extension Element

Extension Elements are particularly suitable for intensive roof-installations on different levels. Installation is tool-free and clips along two sides ensure a precise and problem-free extension of the inspection box. Height: 10 cm.

Cat-Scarecrow

The VS cat-scarecrow can easily be attached to the stainless steel surface water grating, and protects your plants from uninvited avian guests.

Drainage Openings

Drainage openings are precut. They should be pressed out prior to installing the drainage pipe.

Lockability

Lockable boxes prevent unauthorized opening of the lids, and locks offer additional security against wind suction and accidents. They are especially recommended for intensive planting projects, which may also be enjoyed by children.

Natural Stone Cover

To satisfy the most stringent requirements, inspection boxes are also available with a robust and frost-resistant multicoloured granite cover.

KSE Inspection Boxes (Square)

APP eco-inspection boxes are manufactured in accordance with the FLL Guidelines for the Planning, Execution and Upkeep of Green-Roof Sites (FLL).

Guidelines For Roof Planting

"As a rule, roof-outlets should be located away from vegetation areas and free from gravel. Where roof outlets are located within vegetation areas, an inspection shaft will need to be installed, to allow inspections to be carried out, to prevent contamination and to stop plants from growing over the outlet" (FLL).

Appropriate for:
Passable garage roof gardens
Roof gardens in locations susceptible to damage.
Characteristics:

• May be walked on
• Extremely strong material
• Expanded footprint
• Lockable cast iron lid
• Other details like KSE

There are two pre-defined cutting lines on the fascia boxes. These are to accommodate alternative sizes of fillets.

Correct Installation

For areal drainage, inspection boxes have to be placed on the water-carrying layer: they need to be placed on the protective layer for linear drainage. No additional fixing is required. The boxes are surrounded with round gravel to prevent the cultivated areas washing way. Do not run the filter-fleece up along the sided of the inspection boxes, because this might lead to standing water building up in heavy rain.

Drainage Of Surface Water

Drainage of surface water is essential. "Drainage facilities must be capable of collecting both overflow from the drainage course and surface water from the vegetation support course and of conveying it away" (FLL). The openings may have a maximum diameter of 2 mm.

Drain Bar

Bars ensure that the pipe remains attached to the inspection box.

Thermal Insulation

Thermal insulation, made from 30 mm extruded hard polystyrene foam with a thermal value of 0.027 W/mK is an optional add-on for every inspection box.