Tunis, Tunisia

HQ building of "APAVE" - Tunisia

The International Technical Inspection Agency "APAVE" - Tunisia built its headquarters building in Montplaisir, Tunis in 2017. This non-residential building comprises a single R+5 block and has in total a built-up area of 1824 m². The main measures to save energy are thermal insulation of exterior walls and roof terraces, double glazing, high energy efficiency air conditioning system, energy efficient lighting with presence and motion detectors. The implementation of these measures resulted in an annual energy savings of electricity of around 43.1 MWh.

Project info

Construction phase
New construction
Building type
Non-residential building
Detailed building type
Office
Net floor area
1824 m2
Land plot size
402 m2
Stories
6 stories
Construction type
Mixed construction
Original construction year of the building
2017
Project contact
APAVE Tunisia
Contact email address
tunisie@apave.com

Project team

Developer(s)/owner(s)
The International Technical Inspection Agency "APAVE" - Tunisia
Architect(s)
Mr. Mohamed Mezghani
Energy efficiency consultant(s)
Mr. Adel Gabsi
HVAC consultant(s)
Mr. Mohamed Hedi Ktata
Other project team partners
VRD: Mr. Khaled Chemli; Electricity: Mr. Tarek Belhani; Technical Inspection: APAVE

Building Rating and Certifications systems

Rating and certifications systems
Other
Other
Other certification
The building achieved the 1st rating per the Tunisian Thermal Regulation (72 kWh/m².a).
The building achieved the Gold Level per the écoBAT Tunisian labelling standard.

Building Envelope

External walls

Description of construction
The building's external walls are 35cm thick and thermally insulated. Layers include: 2.5cm cement mortar exterior coating, 20cm 12-hole brick, 5cm Rockwool insulation, 6.5cm 8-hole plate brick, and 1.5cm mortar interior coating.
U-Value
0.53 W/(m²*K)

Roof

Roof type
Flat roof
Description of construction
The building's roofs are thermally insulated with these layers: a 25cm armoured concrete slab, a 10cm lightweight concrete layer with perlite for slope shaping, 5cm high-density Rockwool panel for insulation, and a waterproofing product.
U-Value
0.48 W/(m²*K)

Openings and windows

Glazing type
Double glazed
Overall u-value window
2.7 W/(m²*K)
Description of construction
The windows are thermal break aluminium with clear double glazing.

Basement floor

U-Value
2.2 W/(m²*K)

Technical Building Systems

Ventilation system

Type of ventilation
Free ventilation (windows)

Space cooling system

Primary space cooling system
Air-water reversible heat pump and fan coil units.
Efficiency
3.1
Description
The building's space cooling is provided by a centralised air conditioning system based on an air-water reversible heat pump and fan coil units.
Manufacturer(s) / products
Carrier

Space heating system

Primary Space heating system
Heat Pump (air-water)
Description
The building's space heating is provided by a centralised air conditioning system based on an air-water reversible heat pump and fan coil units.
Manufacturer(s) / products
Carrier

Lighting system

Primary lighting system
LED (Light emitting diode lamps)
Efficiency
80

Shading devices

Type of shading system installed
Static (fix) shading systems as part of the building architecture (e.g. Maschrabiyya, porch roofs, pergolas)

Final Energy Demand

Energy carrier (1)
Electricity
Total specific final energy demand
90 kWh/(m²*a)