PVC windows for houses of series 119: what to know

PVC windows for houses of series 119: what to know

Series 119 buildings are typical Soviet-era panel houses with distinct window openings and construction features. When replacing or installing PVC windows, it's essential to consider these specifics to ensure correct thermal and sound insulation, durability, and comfortable operation.

Common features of Series 119 windows

• Openings are often slightly irregular: shrinkage, uneven reveals, and differences between floors. Accurate measurement is necessary.
• Flat sills and narrow recesses affect the choice of drip profiles and mounting depth.
• External panels and interior plaster determine the type of anchors and the installation position.

Measurement tip: measure width and height in three places (top, middle, bottom), note deviations and share them with your installer.

Which profile system to choose

1. Profile depth: 58 mm, 70 mm, or 76 mm. For older panel buildings, a 70 mm (or thicker) profile is recommended for better rigidity and insulation.
2. Chamber count: 3–5 chambers — more chambers increase thermal performance.
3. Reinforcement: steel reinforcement in frames and sashes is important for large openings.

Double or triple glazing?

• Double glazing suits upper floors or warm apartments without heavy noise exposure.
• Triple glazing with a warm edge spacer and argon filling retains heat better and reduces condensation.
• Check the Ug value and the overall window U-value — the lower the number, the better the insulation.

Ventilation and micro-venting

Tight PVC windows require planned ventilation. For series 119 consider:

• supply air vents (in-frame or wall-mounted),
• micro-ventilation mode in the sash,
• or regular short airing cycles.

Without proper ventilation, damp and mold can develop on slopes and walls.

Installation: joint and external drip

• The mounting joint should follow the three-zone principle: external waterproofing, thermal insulation in the middle, and internal airtightness.
• Use low-expansion mounting foam and internal vapor barrier tape.
• Choose a drip (external sill) suited to the facade and internal sill width.

Sound insulation and draught prevention

• To reduce noise, choose multi-chamber profiles and acoustic glazing (different glass thicknesses within the unit).
• Check seals and hardware quality — they ensure tight closing and no draughts.

Security and locks

• Anti-burglary hardware is recommended for ground-floor apartments and balcony doors.
• Additional elements are available: reinforced espagnolette cams, tilt-limiters, opening restrictors.

Maintenance and warranty

• Clean profiles with mild detergents, lubricate hardware annually.
• Inspect seals and replace if worn.
• Ask your supplier about warranty terms on profile, glass units and installation.

Choosing a contractor for Series 119 apartments

• Request examples of work in similar buildings (before/after photos).
• Ask about measurement and installation methods, and require an act for hidden works.
• Compare not only the price but the full service package: removal of old windows, sealing of slopes, external drip, sill installation.

Quick checklist before ordering

• Record exact opening dimensions and note irregularities.
• Prefer profiles of 70 mm depth and 3–5 chambers for better insulation.
• Consider triple glazing with argon to reduce condensation.
• Discuss ventilation solutions before ordering.
• Request written warranty and a work completion certificate.

If you need measurement or help selecting the right specification for an apartment in a Series 119 building, DK-Logi specialists can visit and provide a precise calculation and recommendations.