What are frame seals?
Frame seals are the sealing rubbers placed in the wooden frame and ensure an airtight closure between the window or door and the frame.
✓ sealing against drafts and cold
✓ protection against moisture and noise
✓ essential for energy-efficient living
✓ indispensable for PSK sliding doors and tilt-and-turn windows
Without properly functioning frame seals, even the best window loses its insulating effect.
Why old frame seals consume so much energy
Frame rubbers do not wear out from movement, but from time.
✓ rubber hardens
✓ elasticity disappears
✓ sealing no longer fits properly
✓ gaps form inconspicuously
Because these rubbers are often not replaced for decades, a lot of heat is lost unnoticed.
Recognizable signs of worn frame rubbers
Aged frame rubbers often cause subtle complaints.
✓ drafts along windows or sliding doors
✓ cold draft at frames
✓ rustling noise in the wind
✓ higher heating costs without a clear cause
These signals are often not linked to rubbers, although they are directly related.
Application in wooden PSK sliding doors
Frame rubbers play an extra important role in wooden PSK sliding doors.
✓ complex closing movement
✓ multiple sealing points
✓ large surfaces
✓ sensitive to small leak losses
Worn frame rubbers cause comfort loss here faster than with fixed windows.
Application in wooden tilt-and-turn windows
Good frame rubbers are also essential for tilt-and-turn windows.
✓ correct pressure on the frame
✓ airtight seal in closed position
✓ correct operation of the hardware
✓ prevents draft in tilt position
Old rubbers disrupt this balance.
Most common sizes of frame rubbers
These sizes are mainly found in wooden frames.
✓ 12 mm frame rubber
✓ 15 mm frame rubber
The correct size is crucial.
✓ too thin provides insufficient sealing
✓ too thick hinders closing
✓ correct size restores comfort and insulation
Why timely replacement pays off
Replacing frame rubbers is a relatively small intervention with a big effect.
✓ immediately less draft
✓ noticeably warmer indoor climate
✓ better sound insulation
✓ lower energy costs
Often this is the most underestimated energy-saving measure for wooden frames.
Frame rubbers at Van Doorn Openingstechnieken
At Van Doorn Openingstechnieken we supply frame rubbers for wooden PSK sliding doors and tilt-and-turn windows.
✓ suitable for wooden frames
✓ common sizes 12 and 15 mm
✓ technically selected for sealing and durability
✓ advice based on practical experience
Conclusion
Frame rubbers are small, but their impact is big.
✓ old rubbers silently waste energy
✓ new rubbers restore comfort
✓ correct size is essential
✓ replacement prevents unnecessary heat loss
Anyone serious about comfort and energy efficiency starts with good frame rubbers.
✓ frame rubbers wooden frames
✓ frame rubber PSK sliding door
✓ frame rubber tilt-and-turn window
✓ frame rubber 12 mm
✓ frame rubber 15 mm
✓ draft wooden windows
https://openingstechnieken.com/collections/draaikiepraam-afdichting