What Is Waterproofing?

Waterproofing is one of the most important building applications used to protect structures against water and moisture. It is applied in foundations, roofs, terraces, bathrooms, and many other structural areas.

Waterproofing systems extend building lifespan, protect reinforced concrete systems, and create healthier living environments.

In Turkey, waterproofing is as critical as earthquake resistance. Continuous exposure to water reduces concrete strength, causes corrosion in steel reinforcement, and weakens structural integrity over time.

For this reason, the use of high-quality waterproofing materials has become essential in modern construction projects.

Why Is Waterproofing Important?

Without proper waterproofing, buildings may face serious problems such as:

• Concrete deterioration
• Reinforcement corrosion
• Mold and fungus formation
• Heat loss
• Paint blistering and peeling
• Reduced building lifespan
• Decreased earthquake resistance

Foundation waterproofing, terrace waterproofing, and roof waterproofing are especially critical for long-term structural safety.

Most Common Waterproofing Materials

Modern construction projects use a variety of waterproofing systems depending on the application area.

Bituminous Membranes

Bituminous membrane systems are among the most widely used waterproofing solutions in Turkey.

They are commonly used in:

• Foundation waterproofing
• Terrace waterproofing
• Roof insulation
• Parking decks
• Retaining walls

Types include:

• APP membrane
• SBS membrane
• Polyester reinforced membrane
• Glass fiber reinforced membrane
• Mineral surfaced membrane

Brands such as UKS Membran and Onduline are widely used in professional applications.

PVC Membrane Systems

PVC membranes are modern waterproofing solutions especially preferred for large-scale roofing systems.

Applications

• Industrial factory roofs
• Shopping malls
• Logistics warehouses
• Hospitals
• Commercial buildings

Advantages

• Lightweight structure
• UV resistance
• Long service life
• Fast installation
• Energy efficiency

Products from Technoplan are among the well-known solutions in this category.

TPO Membrane Systems

TPO membranes are one of the fastest-growing roofing technologies in modern waterproofing.

Advantages

• High solar reflectivity
• Energy savings
• Environmentally friendly
• UV resistance
• Chemical durability

They are widely used in LEED-certified green buildings.

What Is Thermal Insulation?

Thermal insulation is a system designed to keep buildings warm in winter and cool in summer.

Proper insulation helps:

• Reduce energy bills
• Lower fuel consumption
• Improve indoor comfort
• Reduce carbon emissions

Most commonly used insulation materials include:

• Rock wool
• Glass wool
• XPS
• EPS
• Rubber foam
• Polyurethane foam

What Is Rock Wool?

Rock wool is a high-temperature-resistant insulation material with A1 non-combustible classification.

Applications

• External façade insulation
• Fire protection systems
• Mechanical installations
• Industrial buildings
• Steel structures

Products from İzocam are widely used in professional projects.

XPS vs EPS: What Is the Difference?

XPS (Extruded Polystyrene)

• Higher compressive strength
• Low water absorption
• Used in foundations and inverted roofs

EPS (Expanded Polystyrene)

• More economical
• Common in façade insulation systems
• Lightweight structure

Both are widely used in modern construction projects.

What Is External Wall Insulation (ETICS)?

External wall insulation is a system applied to building façades to improve thermal efficiency.

Benefits

• Energy savings
• Façade protection
• Improved comfort
• Increased property value

Common Materials

• EPS boards
• XPS boards
• Rock wool boards
• Adhesives and base coats
• Fiberglass mesh
• Mechanical anchors

Brands such as Kalekim are commonly used in these systems.

What Is the Best Insulation Material?

The best insulation material depends on the application area:

• Fire resistance: Rock wool
• Budget façade insulation: EPS
• Foundation & inverted roof: XPS
• Mechanical insulation: Rubber foam
• Large industrial roofs: PVC or TPO membranes

Professional technical evaluation is always recommended before selection.

Professional Solutions by Haydar Boz Yalıtım

Haydar Boz Yalıtım has been operating since 1953 and is one of Turkey’s established insulation companies.

The company provides professional solutions in:

• Waterproofing
• Thermal insulation
• Fire protection systems
• Acoustic insulation
• Roofing systems
• Construction chemicals
• Industrial insulation solutions

Main Partner Brands

• İzocam
• Dalsan
• Weber
• Technoplan
• UKS Membran
• Delta Dörken
• Fischer
• Sika
• Kalekim