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EXECUTION

205 SUITABILITY OF SUBSTRATE
• Substrates generally:
- Smooth, even textured, clean, dry and frost free.
- Within tolerances for level and surface regularity.
- Vertical and horizontal surfaces: Correctly prepared and free from irregularities.
• Curing period for concrete substrates (minimum): 7 days.
• Moisture content and stability of substrate: Must not impair integrity of finished
tanking/ damp proofing.
• Preliminary work: Complete including:
- Chases.
- External angles.
- Formation of upstands and kerbs.
- Movement joints.
- Penetrations/ Outlets.

207 PRIMERS
• Application: Uniform, continuous coverage.

210 COATING APPLICATION
• Adjacent surfaces exposed to view in finished work: Protect.
• Coatings:
- Apply in dry atmospheric conditions when primer is in manufacturers
recomended condition (dry or tacky).
- Uniform, continuous coverage. Do not allow to pool in hollows.
- Firmly adhered to substrate and free from imperfections.
- Prevent damage to finished coatings.
• Penetrations: Impervious.
• Final covering: Apply as soon as possible after coating has hardened.

260 JUNCTIONS WITH DPCS
• Dpcs: Clean, all edges fully exposed.
• Application: Fully coat dpc and overlap adjacent surfaces by (minimum) 75 mm .

270 BLINDING
• Coatings: as manufacturers recomendations (tacky or wet)
• Surplus material: Remove when coatings are completely dry.

COMPLETION

310 INSPECTION
• Interim and final inspections: Submit reports.

320 ELECTRONIC INTEGRITY TEST
• Testing authority: The coating contractor.
• Timing of test: Give notice.
• Condition of coating prior to testing:
- Complete to a stage where integrity can be tested.
- Surface: Clean.
• Test results and waterproof integrity certificate: Submit on completion of testing.

RotF generic (intermediate) NBS 2014 6118-AEW-XX-XX-NBS-A-01