Window and door thermal insulation with EPDM seals

Window & Door Thermal Insulation

Leaky windows and doors account for up to 30% of heat loss in a building. PGUM-SILL self-adhesive EPDM seals eliminate drafts and reduce heating costs — without replacing window frames.

Why do windows and doors lose heat?

Gaps between the frame and sash develop through natural wear of factory seals, building settlement and thermal expansion of materials. A 3-millimetre gap around a window perimeter causes air exchange equivalent to a permanently open ventilation window. During the heating season, this translates into higher heating bills and thermal discomfort.

How do EPDM seals solve the problem?

D, P and E-shaped EPDM profiles fit gaps from 2 to 7 mm, creating a tight thermal barrier around the entire window or door. EPDM rubber maintains flexibility from -40°C to +120°C, never hardening in winter or deforming in summer. The self-adhesive layer enables tool-free installation in minutes.

Benefits of EPDM thermal insulation

Heating cost reduction of up to 30% by eliminating uncontrolled air exchange. Improved thermal comfort — no drafts or cold zones near windows. EPDM material durability ensures effective insulation for many heating seasons without replacement.