Application

1. Day 1 - Clean down the gutter / roof to remove all debris and old soft bituminous coatings that may be left on previous waterproofing systems.
2. Apply one coat of Serba No 3 primer at a rate of 6m² per litre and allow a minimum 2 hours to dry. Clean brushes with methylated spirits.
3. Apply one coat of Serbaseal Base Coat along any joints in felt or any cracks in the existing waterproof membrane, at the same time, inlay Serba mesh into the coating. Overcoat the mesh with another coat of Base Coat at a rate of 2kg per 10 mtr run. Clean brushes with white spirit, clean off with a rag soaked in white spirit.
4. Apply one coat of Serbaseal Base Coat and at the same time, inlay chopped strand matt into the coating then overcoat with another coat of Base Coat at a rage of 2kg per m²
5. Day 2 - Apply a further coat of Base Coat into any areas that may require touching up (onto any pin holes or thin areas) at a rate of 2kg per m².
6. Allow a further hour to dry then apply one coat of Serbaseal (Silver Solar Reflective) Top Coat at a rate of ½ kg per m². Clean off in Serba Brush Cleaner.

Notes on Technique

• To avoid breathing solvent vapours whilst the coatings are curing, specially in confined spaces, use the correct face masks with the correct vapour proof filters.
• Avoid coating around air conditioning units whilst they are on otherwise vapours will be drawn into the building
• Apply the primer with a throw away cheap brush or roller if possible.
• Apply the base coat using the 5" or 12" Serba brush.
• Apply the Top Coat with a cheap brush or preferably use the Serba Top Coat Roller, which will leave a pleasing finish.
• On large gutter joints or expansion joints, it might be necessary to apply a slip tape (bond breaker) over the joint followed by Serba Flexi Mesh inlayed into the Basecoat, then continue the system as above.

SERBA COATINGS UNIT 6, WILLIAM STREET, NORTHAM, SOUTHAMPTON, HANTS, SO14 5QH TEL: 023 80223266 EMAIL: sales@serbacoatings.co.uk FAX: 023 80233566

The claims made in this document are made in good faith and are based on exhaustive tests carried out over a long period.
Serba Coatings, their agents and their distributors cannot accept any liability for the behaviour of their materials in individual cases.

A printer friendly copy is available here

A Health and Safety Reference Datasheet is available here