FAQ: The abbreviation FENSA stands for FENESTRATION - SELF ASSESSMENT.
The uk dictionary definition of the word fenestral or fenestrate is " belonging to or like a window" The word fenestration is "the arrangement of windows in a building". FENSA is used by double glazing uk trade companies to certify that their replacement windows and doors installed comply with Building Regulations Document L (and more), actually checking av. 1% of all replacement windows installations.
Did You Know?
Double glazed French window & doors.
The return in popularity of the 'French Window':
Double glazed sliding Patio Door popularity in the U.K. took off in the 1970's, along with 'double glazing' replacement windows and doors, and at the time mostly in battleship grey silver anodised aluminium, fitted in hardwood sub-frames. The popularity continued unabated through the 1980's and little wonder, it made a visually dramatic difference, the brick cut-down and installation was relatively easily done with little disruption, and it gave an instant 'modernised' appearance, and per square foot was good value for money.
The double glazed sliding patio door revolution brought with it the paved patio area, along with the obligatory BBQ and white plastic table and chairs set and brightly coloured parasol, and didn't we all feel so suave, chic and fashionable!
Enter the 1990's, and with it a desire to return to everything quaint and traditional.
In the early 1990's a gradual drift away from 'modernisation' began, and with it was born a fashion that was to grow through the 1990's to the present day, that is a return to everything quaint cottage-y. I have noted with interest over the years that double glazed sliding doors have not always been liked by all and that is because of their bland starkness, which can give a feeling of 'living in a goldfish bowl', particularly if even slightly overlooked. As I write I can say that there is now greater demand for 'French' double doors, sometimes with sidelights if wide enough, than there is for new sliding patio door sets. Customers who want to replace their old patio doors often have new ones again, whereas when people move into a property they often choose to change the character and have double 'French' doors instead as part of the remodeling and 'prettying up' of their new home.