ISOPlus casement PVC window basic features

This Fenplast series of window frames is available in 4 1/2”, 5 3/4" flush (casement, awning and picture frame window only) or 5 3/4” with exterior moulding (EM) thicknesses.

The frame
The frame

As illustrated, this series of window frames is available in 4 1/2”, 5 3/4" flush (casement,awning and picture frame window only) or 5 3/4” with exterior moulding (EM) thicknesses. 

The outside section of the 5 3/4” EM frame has an overhang on which brick may be abutted, or on which siding may be installed in the track designed for this purpose. It is also possible to order it with a reduction of half an inch for specific renovation purposes. 

The inside part of the Iso© series frame is designed to receive a jamb extension or a sheet of gypsum to fill in the space between the frame of the window and the inside wall.

  • In a new construction, it allows positioning the sash nearer to the warm part of the wall (thereby reducing condensation).

  • In case of renovation involving the replacement of the complete frame, you will benefit from the advantages mentioned above as well as having a choice of mouldings and jamb extensions that will allow you to configure the frame for an installation adapted to the specific requirements of your home.

Basic Features
The Screen

The screen frame is made of robust aluminium and has an overlap that rests against the window, protecting you from even the smallest of insects. 

The screen is made of black fibre.

The Colors



To add originality to your home choose windows color that will stand out and have a look well today. Reflect your personality by choosing the color to harmonize the interior of your windows and doors with your decor.

The interior paint option for your windows and doors is available with our casement windows, awnings and fixed and our sliding doors and steel. This is a solution to both energy and economic eco.  

You can choose from more than twenty standard colors or provide us the color code of a paint supplier.

Anchor points

To close a casement window as tightly as possible, the anchoring points must be positioned as close as possible to the ends of the sash.

As illustrated, Fenplast has its lower anchoring point 4” from the bottom of the frame which is the ideal placement.


Every opening sash comes with a multipoint lock. This means that all windows (except for awning windows) are equipped with a locking system having two or three anchor points (depending on the height of the window). The advantage of this is to be able to safely lock your window in only one operation. The lock is installed as low as possible to make handling it easy. This is especially appreciated in a window located above a kitchen sink or for someone who is mobility challenged.


The stainless steel hinges provide superior protection against corrosion.


When a casement window is wider than 20” (meaning 90% of all windows) the sash opening system is
operated by a “DOUBLE ACTION” mechanism. This system uses a 3-point attachment to the sash. This principle allows for very easy opening of the sash to an angle of 90° which ensures an ideal access for cleaning the outside surface of the window from inside the home.


As represented, the folding handle, is nesting in an elegant cover and won’t interfere with window treatments.