Mamad, standards and safety for a Tel Aviv renovation

1. The mamad: mandatory safe room

The mamad (מרחב מוגן דירתי, merchav mugan dirati) is the reinforced safe room required by Israeli civil defense law since 1992 for any new construction. It protects occupants from missiles, shrapnel and gas. Every new home must contain one, or have access to a reinforced collective shelter in the building (miklat).

Technical specifications

• Walls and ceiling in reinforced concrete 30-40 cm thick
• Blast-proof watertight door — certified manufacture
• Blast-proof sliding window
• Air filtration system
• Minimum area: regulatory 9 m² for a standard residential mamad

When is it mandatory?

• Any new construction since 1992
• Any demolition-reconstruction under TAMA 38/2
• Any reconversion of non-residential premises to housing
• Significant vertical extension on an old building

When is it not mandatory?

• Pre-1992 buildings (Bauhaus, 1950s-70s-80s)
• A simple renovation does not trigger the obligation
• An old building with compliant collective shelter is considered covered

2. Pikud HaOref and regulatory framework

The Pikud HaOref (Home Front Command) is the military authority responsible for civil defense. For real estate, it defines mamad technical specifications, collective shelter specifications, and end-of-project validation procedures. Without its approval, the compliance permit (tofes 4) is not issued.

3. Israeli electricity: standards

Voltage and frequency

Like Europe, Israel uses 230V at 50 Hz.

Plugs

Israel uses the SI 32 standard historically (3 flat triangular prongs). Since the 2000s, most homes also include Europlug sockets. For a modern renovation, we install bi-standard outlets.

Three-phase common

In apartments over 100 m², three-phase (telat faza) is standard.

Standards and certifications

Defined by the Standards Institution of Israel (SII). Any installation must be done by a chashmalai musmakh (certified electrician) and certified at project end.

4. Embedded plumbing and solar water heater (dud shemesh)

Embedded plumbing: the Tel Aviv high-end standard

In any property renovated to a modern standard, pipes are embedded in the concrete slab or routed through vertical ducts. This requires slab opening, chasing, pouring; specific materials (PEX or copper); watertight verification before closing.

Dud shemesh: solar water heater (near-mandatory)

A major Israeli specificity. Since 1980, law requires a solar water heater for any new home up to 8 floors. For a Tel Aviv renovation project, the existing dud shemesh is usually conserved, replaced, or supplemented by an electric element.

5. VRF air conditioning: the real comfort requirement

Tel Aviv summers reach 35°C with high humidity. For a high-end property, we systematically install a VRF (Variable Refrigerant Flow) system.

Why VRF over classic split?

• One outdoor unit for all rooms
• Room-by-room control with embedded ducts in false ceiling
• Visual discretion — fine diffuser grilles
• Superior energy performance
• Centralized control, KNX/Lutron domotic integration

Installation constraints

• False ceilings of 20-30 cm needed
• Outdoor unit location to plan
• Three-phase electrical supply in most cases
• Condensate drainage to integrate from design

Common brands in Tel Aviv

Daikin, Mitsubishi Electric, LG, Toshiba — all present with local distributors and service.

6. Acoustic and thermal insulation

Acoustic insulation

The acoustic comfort culture is historically less developed in Israel than in Northern Europe. For a high-end property, we systematically integrate:

• Floating screeds under parquet/stone
• Acoustic lining on party walls
• Solid interior doors
• Acoustic double-glazed exterior windows (31 dB minimum)

Thermal insulation

Tel Aviv climate requires an inverted approach vs. France: protect from sun and heat.

• Exterior joinery with solar-controlled glass
• Motorized exterior solar protection
• Roof insulation for top floors
• Reflective paints on exposed facades