This primary school development, Led by Bob Stones, Contract Manager for Rees Flooring is a prime example of the Schönox®
range in use.
Using hygrometers, several moisture tests were undertaken to establish the moisture content of the sub-floor and whether a damp proof membrane would be required.
Being a working construction with many different trades onsite, testing had to be undertaken over a 4 week period when rooms and corridors where floors were to be laid, were released.
The readings were between 76%RH & 88%RH so Schönox® SDG DPM
was advised for damp proofing the entire sub-floor. Schönox® SDG
is a rapid drying liquid DPM which can be used up to 90%RH after applying 2 coats. It requires no additional primer before screeding, and so was ideal for this project, as Rees Flooring was then able to damp-proof and screed all on the same day.
Before the DPM was installed it was decided with help from the Schönox®
technical team, to tackle the construction joints with a polyurethane (PU) adhesive system: Schönox® PU900
. This allowed for a quick solution when time is critical, as is often the case on such installations. Schönox® PU 900
adhesive was poured into the joints and spread 2 inches either side, using a wire mesh for reinforcement. Schönox® SHP primer
was then used on top to allow a good adhesion for the latex levelling compound to be used.
As the subfloor on the first floor was very uneven, giving a wave like effect, an effective levelling compound laid up to at least 8mm was required.
was ideal as it can be used up to 20mm without bulking out. Schönox® LC
levelling compound was used at between 8-10mm on the first floor, and on the ground floor at 5mm. Finally, Schönox® Emiclassic
adhesive was used to bond all safety vinyl sheets.