Renovation Guide for Sea‑View Apartments in Caddebostan, Suadiye & Moda

1. Pre‑Planning & Free Site Survey

During the first visit, Güven Kardeşler measures salt‑moisture damage, concrete/steel corrosion levels and insulation gaps. The report includes hygrometer readings and salt‑concentration analysis.

At this stage, compliance with Istanbul Metropolitan Municipality’s Zoning and Environmental Law is checked, including permits for façade and balcony alterations (Zoning Plan Compatibility, Environmental Impact Assessment).

• •Moisture & salt measurement → report
• •Pre‑check of permit requirements
• •Budget estimate (≈40% cabinets, 30% façade, 20% insulation, 10% labour)

2. Combating Salt‑Moisture: Waterproofing & Airtightness

The most critical step is reinforcing the waterproof layer of façades and balconies. Cement‑based elastomeric membranes (PU/EPDM) are preferred, offering >95% water resistance and UV durability.

Balcony undersides, drainage channels and terrace edges are equipped with drainage boards to prevent water pooling and salt ingress.

• •Elastomeric membrane → 2 coats, 24 h cure
• •Install drainage board → 100% water flow
• •Silicone/PU sealants at joints and corners

3. Façade Refurbishment & Insulation

Istanbul’s humid climate raises heat loss through walls. Adding a 5 cm EPS panel with aluminum‑composite cladding (Alucobond) provides both thermal insulation (R≈4.5) and a moisture barrier.

Before panel installation, the wall surface is cleaned of acidic sea‑salt residues, then a cement‑based primer and two thin plaster coats are applied.

• •Wall cleaning → acid neutralization
• •EPS panel + Alucobond installation
• •Insulation verification (thermal imaging)

4. Interior Renovation: Moisture Resistance & Aesthetics

Balcony doors and window frames are replaced with aluminium or PVC‑coated wood profiles, reducing thermal bridges by ~30% and blocking salt‑moisture ingress.

Kitchen and bathroom cabinets use marine‑grade, multi‑layer melamine‑coated wood instead of water‑prone MDF, extending service life by ~45%.

• •Water‑tight doors/frames → 30% thermal bridge reduction
• •Marine wood cabinets → enhanced moisture resistance
• •Internal vapor barrier (PE film) → 90% moisture resistance

5. Final Inspections, Warranty & Handover

Upon completion, an independent thermal imaging and moisture testing firm conducts inspections. Any deficiencies are corrected within 5 business days.

Güven Kardeşler provides a 2‑year warranty on workmanship and materials, and a 5‑year warranty on waterproofing and façade insulation, covering salt‑moisture damage at no extra cost.

• •Thermal report → energy loss <5%
• •Moisture test → >90% barrier performance
• •Warranty certificate and maintenance schedule handover

Frequently Asked Questions

Which material is most durable for balcony renovation by the sea?

A combination of aluminum‑composite panels (Alucobond) and elastomeric waterproof membranes offers the longest lifespan against UV, salt and wind.

What permits are required for façade changes in Istanbul?

A zoning permit, an Environmental Impact Assessment (if applicable), and a Certificate of Occupancy must be obtained from the municipality.

How quickly can salt‑moisture problems be resolved after detection?

Güven Kardeşler presents a solution plan within 2‑3 business days after testing; implementation typically finishes within 1‑2 weeks.

What portion of the budget should be allocated to façade insulation?

Approximately 30% of the total budget should go to façade insulation and cladding; the range can vary between 25‑35% depending on project size.