
Lift Out
Series 41: Heavy duty framing using Series 41 hinged profiles without hinges. Suitable for very large and curved windows; supports thicker glass for higher noise insulation.
Ideal for applications where access to the primary window is only required for cleaning and maintenance purposes. Larger glazing beads accommodate the use of sealed units.
Ideal for applications where access to the primary window is only required for cleaning and maintenance purposes. Larger glazing beads accommodate the use of sealed units.

Series 41 Heavy Duty
A version of the heavy duty Series 41 casement system without hinges that is suited to larger shaped and circular windows or those requiring thicker glass specifications. Release of catches allows the panel to be removed for occasional cleaning.
Recommended maximum frame sizes (mm)
H | W | ![]() |
|
Single | 2400 | 1200 | Link to BIM data |
Glazing Range
6 mm to 28 mm 24 mm (Sealed glass unit to form triple glazing)Frame Finishes
Standard white (HIPCA semi-gloss). Any standard powder paint, wood grain or anodised finish to order.- Warmer A Series 41 lift-out will reduce heat loss by up to 50% using standard glass, up to 65% with a thermally efficient glass (low-E). High performance compression seals will almost eliminate drafts and ensure much greater comfort near the window. The effectiveness of the insulation is measured by U-values, the lower the figure the better the insulation.
INSULATION (U-VALUE) CALCULATED IN COMBINATION WITH A PRIMARY WINDOW AT BRFC SAMPLE SIZE OF 1430 X 1230MM
GLASS METAL PRIMARY WINDOW TIMBER PRIMARY WINDOW 6 - 12mm 2.85 W/m2K 2.58 W/m2K 6 - 12mm low-E 1.91 W/m2K 1.79 W/m2K 24mm gas filled low-E sealed units 1.73 W/m2K 1.63 W/m2K 24mm enhanced thermal sealed units 1.34 W/m2K 1.27 W/m2K Quieter
A Series 41 lift-out set 100mm apart from the existing window will reduce noise levels by 45dB (decibels). In most circumstances this will achieve World Health Organisation guidelines for quiet living and working environments and the twin compression seals remain very effective over long periods.NOISE INSULATION MEASURED IN COMBINATION WITH A PRIMARY WINDOW
GLASS 50MM CAVITY 100MM CAVITY 200MM CAVITY 6 - 6.4mm 41 dB (Rw) 45 dB (Rw) 47 dB (Rw) 6.8 - 7.5mm 42 dB (Rw) 46 dB (Rw) 48 dB (Rw) 8 - 10mm 43 dB (Rw) 47 dB (Rw) 49 dB (Rw) 10.8 - 12mm 44 dB (Rw) 48 dB (Rw) 50 dB (Rw) SECURITY PERFORMANCE (MAXIMUM ACHIEVABLE, CONTACT SELECTAGLAZE FOR SPECIFICATION REQUIREMENTS)
TEST STANDARD INTRUDER Non certified second barrier to entry BLAST N/A BALLISTIC N/A FIRE N/A Styles available
Section diagrams
- H6 Slimline Handle (Lockable)
- H7 Non-Locking Handle
- H8 Locking Handle
- H9 Rosette (Square Drive/Removable Key)
- H12 Peardrop Handle (Allen Key Lockable)
- H15 Reeded Handle (Allen Key Lockable)
- H16 Monkeytail Handle (Allen Key Lockable)
- H18 Vivo Low Profile Handle
- H21 Flush Lock with Cover Disc
- H22 Flush Lock with Security Cover Plate
- L7 Spring Catch
ITEMS FINISHES H6 Slimline Handle (Lockable) White Black Gold Polished chrome Satin chrome H7 Non-Locking Handle Match frame colour H8 Lockable Handle White Black H9 Rosette (Square Drive/Removable Key) Match frame colour H12 Peardrop Handle (Allen Key Lockable) Black Polished chrome H15 Reeded Handle (Allen Key Lockable) Polished brass Polished chrome Satin chrome H16 Monkeytail Handle (Allen Key Lockable) Black H18 Vivo Low Profile Handle Polished chrome Satin chrome Match frame colour H21 Flush Lock with Cover Disc H22 Flush Lock with Security Cover Plate Match frame colour