PVC windows for brick Khrushchyovkas: what you need to know

Introduction

Brick Khrushchyovkas are a common housing type where wall thickness, window reveals and sills influence window selection and installation. Wrong profile choice or poor installation can cause drafts, condensation and heat loss. This guide explains practical aspects of choosing and installing PVC windows in brick Khrushchyovka apartments.

Why brick Khrushchyovkas are special

• Wall depth and reveal geometry in brick houses are often larger than in panel buildings, affecting frame placement.
• Reveals and surrounding plaster may be damaged and require repair and insulation.
• Non-standard openings are common — precise measurements are essential.

Choosing the profile

Chambers and rigidity

• A 4–6 chamber profile is a good compromise between cost and thermal performance. 5–6 chambers increase insulation and stiffness.
• Proper steel reinforcement is important for larger spans.

Frame width

• Mounting zone of at least 70 mm is recommended to ensure solid anchoring and room for insulation.

Glass units (double/triple glazing)

• For Latvia's climate a double-glazed unit with warm-edge spacer and argon fill is often optimal. For noisy streets consider acoustic or laminated units.
• Low-E coatings reduce heat loss and cold radiation from the glass.

Installation: the most important step

Mounting gap and insulation

• Leave a gap of 10–20 mm for polyurethane foam and insulation. Use a "warm installation" approach: internal joint more airtight, external joint vapor-permeable.

Fixing methods

• Use sufficient fixing points. In brick walls chemical anchors or long mechanical anchors provide secure fastening.

Sills and drainage

• Fit an external sill with a slope and proper sealing between frame and sill to protect reveals from moisture and frost.

Ventilation and trickle vents

• Windows with micro-ventilation help avoid condensation without opening the window fully.
• If the apartment is airtight, install trickle vents or consider a simple supply ventilation system.

Reveals and finishing

• Repair and insulate reveals: first waterproofing and thermal insulation, then finishing with plasterboard, plastic trims or render.
• Ensure external reveal slopes for water run-off.

Acoustics and thermal performance

• For busy streets choose glass units with different pane thicknesses and acoustic cavities.
• Warm installation and quality seals prevent thermal bridges and cold spots.

Measurements, approvals and warranty

• Order professional measurements: millimeter accuracy makes the difference for a tight seam.
• Check with the building manager or HOA if approvals are necessary for façade works.
• Verify warranty terms for profile, hardware and installation.

Maintenance

• Lubricate hardware, clear drainage holes and inspect seals periodically.
• If condensation appears, check ventilation and the integrity of seams.

Conclusion

Quality PVC windows significantly improve comfort, reduce noise and update the appearance of a brick Khrushchyovka. The right profile, glazing and professional installation are the keys to a successful upgrade.

Quick FAQ

• Should I insulate reveals? Yes, internal insulation and, if needed, external solutions are recommended.
• Which glazing is best for warmth? Double glazing with argon and Low‑E; triple glazing in very cold locations.
• What about installation cost? It varies; get a detailed quote including warm installation and sills.