New sliding hinge arrangement with childproof lock and vent lock on the same side.

• In our previous hinge arrangement, the childproof lock and air vent were arranged on either side
• This required changing hands when releasing the vent and childproof lock
• Our new arrangement places the childproof lock and vent on the right-hand side, enabling both operations to be done without changing your grip on the handle

New, rigid air vent

• With the vent in the locked position, the window frame is securely fastened, preventing it from vibrating in the wind

Now Improved secure connection between sash and fittings

• A screwed connection now prevents the sash from coming loose from the fittings when open

New steel keeper with roller – easier to close – extra break-in protection

• The keeper in the internal corners was previously made of hard plastic. This has now been replaced with a steel fitting that is much more hardwearing and robust.
• The keeper extends far into the back of the sash frame, where it is fastened with screws onto a vertical slide rail of aluminium. This provides considerably better break-in protection.
• A steel roller has been fitted at the point where the espagnolette bolt goes into the housing. This makes the bolt slide effortlessly, and facilitates closing the window.

New bevelled, smoother espagnolette bolts give improved tightness without using force

• When the window is closed and the handle turned, the espagnolette bolts engage with the keeper.
• To achieve maximum tightness when closing the window, it is essential that the bolts press into the fittings and draw the casement against the sash frame.
• New, smoother espagnolette bolts with bevelled tips of reinforced steel, combined with rollers in the housing, provide the maximum force for tightening when you close the window, without any force on the handle Now

New, external angle strips strengthen the window sash

• In addition to the sash being mortised and glued, the corners have now been reinforced with external angle strips of steel. This provides many benefits:
• The fittings prevent the weight of the bottom frame section leading to problems
• The fitting, combined with a new espagnolette mechanism, provides enhanced functionality and break-in protection

Improved break-in protection – withstands a full 900-kilo force on each corner

• The total improvements with steel fittings and other features make the Lyssand window even better protected against break-ins.
• Tests show that the Lyssand window now withstands up to a 900-kilo force on each corner without fracture. 900 kg

All Lyssand products comply with the new building regulations, which demand high-energy performance.

User benefits:

• Low energy glass allows heat from the sun through, but keeps heat from fires and radiators inside.
• You can reduce the cost of heating by 30%.
• Low energy double-glazing is more energy efficient than triple glazing, which weighs 50% more than doubleglazing and also requires more energy to transport and install.
• The total amount of energy used to make a timber window is approximately 1/5 of the energy used to make a plastic (PVC) window.