StxTherm Eco Application Guide
8Pages

StxTherm Eco Application Guide

StxTherm Eco A silicone rendered system suitable for low to medium rise buildings such as terraced or semi-detached housing. 1. Substrate 2. Adhesive mortar 3. Grey EPS insulation board 4. Mineralic reinforcing coat 5. Glass fibre reinforcing mesh Embedded into the mineralic reinforcing coat 6. Primer 7. Silicone render finish This guide is intended as an on-site reference aid only, and does not replace formal training and accreditation. If you wish to carry out insulation works using Stomix systems under ECO funding, you should attend a Sto training course and gain accreditation before...

Materials Checklist I | Starter track, full system stop beads, corner angle, render beads, etc. I | Fixings for track and beads | | Stomix multibond for adhesive and reinforcing coat I | Stomix Silkotex Render □ Stomix VT-1 Reinforcing Mesh | | Dowels and caps for fixing insulation (depends on fixing method specified and substrate) Equipment Checklist | | Gloves, overalls, masks, goggles, hard hats, boots | | Mixing vessels for adhesive and reinforcing coat I | Power mixer and paddle | | Water measuring jugs | | Spraying equipment (optional) I | Wide levelling trowels I | Hot wire cutter...

Application Procedure Substrate Preparation 1 Test existing surfaces Remove or repair non-loadbearing coatings. Use a fungal wash to remove existing algae or mould growth. 2 Fix the starter track Fixings at maximum 300mm centres and in hole nearest to the end of the starter track. • Use packing shims to ensure the track is level with the wall. • Fix full system stop beads if specified. 3 Prepare the Stomix Multibond Add each sack of Stomix Multibond to between 6.0 to 6.75 litres of water. Mix for 2-10 minutes to a smooth consistency. Allow to mature for 10 minutes and then briefly stir...

Application Procedure Filling & Rasping the Insulation 7 Fill any gaps between boards with PU Filler Foam 8 Allow the adhesive to set Leave to set for a minimum of 24 hours. More time may be required in low temperatures or high humidity. Protect the surface from rain. 9 Rasp the entire surface of the EPS This creates a flat surface and provides a key. Pay particular attention to board joints. This is critical if a good quality, professional render finish is to be achieved. Reinforcement of the Insulation 10 If using dowels, drill the holes required and countersink the EPS Insert the dowels....

Application Procedure Apply Mesh and Primer 13 Trowel the reinforcing mesh into the wet material Ensure it is covered completely. All mesh overlaps must be a minimum of 100mm. 14 Trowel smooth Ensure a perfectly flat and even surface by using a wide levelling trowel (butterfly knife). 15 Allow to set for at least 24 hours Low temperatures and/or high humidity may increase the setting/drying time to 48 hours or more. Protect the work from rain. 16 Apply Stomix Primer to the entire dry surface with a brush or roller Allow to dry for at least 12 hours, or longer in periods of low temperatures/...

Application Procedure Apply the Render Finish 17 Apply Stomix Silkotex Apply the Stomix Silkotex render finish directly onto the dry primer with a trowel or spray application machine. Stomix Silkotex may be diluted with up to 2% clean water to achieve a working consistency. Ensure the same amount of water is added to each pail of the same batch. Application should be to an entire elevation or between natural breaks (corners, stop beads, behind downpipes, etc.) in one single operation. Do not use Stomix Silkotex from differing batches on the same elevation. Failure to observe this...

Head Office Southern Office & Distribution Centre Hillington Park Kingsland Business Park Wade Road www.sto.co.uk Midlands Training & Distribution Centre www.stomix.co.uk Sto Ltd. Unit 700 Catesby Park Kings Norton Birmingham B38 8SE Tel