April 2017

Orion Primary School

Orion Primary School

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.

Schönox® LC 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. 

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From 1st January 2018, all SCHONOX materials and future business will be delivered to and sold from Sika, Welwyn Garden City instead of Everbuild, Leeds.

Address:
Sika Ltd (UK), Watchmead, Welwyn Garden City AL7 1BQ

Contact for all sales orders: Email: FRSales@uk.sika.com Tel: 01707 358588