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Comfortable teaching and learning environment


Project Profile


low-e glass, scheduling, thermal secondary glazing

Founded by the Reverend Canon Francis Holland in 1878, the original school building was built in Baker Street. In 1915 it was transferred to its current purpose built premises near Clarence Gate. The Francis Holland School has continued to provide an education for girls throughout the proceeding generations. Adjacent to Regent's Park, The Francis Holland School has retained its status as a highly academic independent day school. This Grade II Listed building has been extended over the years to accommodate the changing needs of the school. A nearby public house, the Gloucester Arms - dating back to the 1880s, was acquired in 2005 when it went up for sale and was incorporated into the current school. Great care was taken to ensure that the original features of this building were retained. The Gloucester Wing was formally opened by HRH The Duke of Gloucester in 2009. Francis Holland School Featured image Gloucester Wing and Series 15 treatment Over the years the existing original single glazed windows proved to be thermally inefficient and draughty. In addition, the pre-existing secondary glazing was not fit for purpose. The proximity of the building to the general hubbub of urban London has resulted in an increase in noise ingress. Selectaglaze was consulted to design a solution to these problems.  Due to the eclectic mix of building styles, a total of thirty five bespoke units were manufactured and installed, across three of our ranges. The treatment included our newly designed Series 15, which is a horizontal sliding unit with a more robust, yet still slender frame. This unit allows for a discrete treatment of larger windows. Its thicker frame allows for thicker glass with higher levels of noise insulation and security. The sash windows were generally treated with the Series 20 slimline which is a vertical sliding unit. When the secondary unit is installed with a minimum cavity of 100mm, the resulting air gap between the panes greatly reduces the transmission of noise. Optimal treatment can see a reduction of sound ingress in excess of 50dB. The units were glazed with 6mm toughened low-E glass. This specification further deadens noise ingress and improves the thermal efficiency of the windows. The addition of the low-E glass component dramatically enhances the U-value of the window, achieving levels of 1.95 W/m2K. The U-value measures how much heat is lost per square meter of glass. The U-value for a typical single glazed window is 4.7 W/m2K. Melissa Kent at Daniel Watney remarked; “The client and I are happy with the end result. The new Series 15 is perfect for the school's requirements and I really appreciated Selectaglaze rearranging their schedule for the day of installation in order to accommodate the school’s needs”. Selectaglaze is highly experienced in treating traditional buildings sympathetically whilst maximising the acoustic, security and thermal integrity of each window.