Most PVCu systems will now give you this option. As a generalisation Internally beaded windows (where the glass is held in from the inside) are considered more secure and burglar resistant. That said there are a lot of satisfactory externally beaded PVCu systems about - many of which feature either internal wedge gaskets or a "double sided" tape which holds the external bead firmly in place. You should investigate this particular issue with your supplier.
- Farnborough & Aldershot
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