Materials
All Aluminium sections are extruded from 6063T6 alloy and are white or brown polyester power painted as standard. Silver anodised or alternative colours are also available.

Draught Proofing
Each moving panel is fitted with double polypile to achieve a maximum seal. Foam can also be fitted between the outerframe and primary surround to enhance the seal.

Sound Insulation
All windows have been tested for sound insulation at 100Hz - 3150Hz and offer up to 20dBs when combined with single glazed windows and up to 40dBs when combined with double glazed windows.

Fittings
Horizontal panels operate smoothly on tough steel rollers whilst verticals are suspended on spiral balances to allow for controlled operation. Hinged casements operate using high quality butt hinges.

Installation
Secondary Glazing is primarily designed to be face fixed. All products with the exception of vertical sliders can be reveal fixed however please read the fitting instructions thoroughly to ensure correct fitting procedures are followed.