EWI. Enewall EWI Inspection, Maintenance & Repair Manual. Issue 2 April Authorised by

Transcription

1 Enewall EWI Inspection, Maintenance & Repair Manual Issue 2 April 2015 Authorised by 1

2 CONTENTS 1. Introduction...page 3 2. Inspection & Maintenance...page 3 3. Repair of EWI General...page 4 4. Repair of EWI System 1...page 5 5. Repair of EWI System 2...page 6 6. Repair of EWI System 3...page 7 2

3 1.0 Introduction: BBA 60 year Certification This manual related to and forms part of all Enewall EWI Specifications and applies to Main Contractors, Sub-Contractors, Enewall Approved Installers, Developers and the Client. In order to comply with the conditions of the BBA 60 years certification, the EWI System must be installed by an Enewall Approved Installer and as per the requirements of the applicable BBA Certificate. This includes following the Inspection, Maintenance and Repair procedures detailed within this manual. The EWI System service life can extend to 60 years provided a planned Inspection and Maintenance programme is in place and covers the use of Stainless Steel Beads, Stainless Steel Fixings, and Plastic Anchor materials such as Polyamide, Polyethylene or Polypropylene fixings (4 Plastic Fixings + 2 Stainless Steel Fixings) 2.0 Inspection & Maintenance of Enewall EWI Systems 1. It is the responsibility of the Enewall Approved Contractor, Sub-Contractor, and Installer to perform the final inspection of the newly installed EWI System. 2. Enewall Technical Staff will carry out an independent initial inspection of the newly installed system and site visit reports are completed and maintained. 3. After the initial inspections, the recommended inspection frequency is 5 years and this must be carried out by the Approved Contractor, Sub-Contractor, and Installer. 4. The Approved Contractor, Sub-Contractor, Installer is responsible for gaining access to the property / site to enable the inspection to be carried out. 5. The Maintenance inspection is a visual check and will cover the inspection of the external surface. Any problems behind the render facade would be instantly detected and the appropriate repairs must be carried out as detailed in the Repair section within the relevant specification. 6. The Approved Contractor, Sub-Contractor, Installer must always refer to, and follow the directions of the Enewall Specification. 7. The Approved Contractor, Sub-Contractor, Installer must always refer to, and follow the manufacturer instructions. 3

4 3.0 Repair of Enewall EWI Systems 1. It is the responsibility of the Enewall Approved Contractor, Sub-Contractor, and Installer to perform the repairs to the EWI System. 2. Enewall will supply the Approved Contractor, Sub-Contractor, and Installer with repair specifications. 3. After assessing a repair, the Approved Contractor, Sub-Contractor, Installer must refer to, and follow the Enewall Specification and recommendations ensuring that exactly the same methods and components are used when administering the repair. 4. Only components assessed under the BBA approval can be used for repair work. 5. If any of original components are no longer available, only alternative components assessed and approved by the BBA will be recommended for use in repair work. 6. When the repair is completed as per the Enewall specification and satisfactorily inspected will the durability be the same as the complete original system. 7. In line with the requirements of the Enewall Limited ISO9001:2008 Quality Management System, records of all correspondence is kept and this includes Site Visit records, photographs, Approved Contractor, Sub-Contractor, Installer details including records of training and training updates etc. 4

5 4.0 Enewall EWI Repair of System 1 1. Using a disc cutter, cut through the Enewall render 150mm beyond the area of damage/patch using a small or scraper chisel, remove the render from the reinforced adhesive coat. 2. Cut out area of damaged insulation board; clean the substrate of any old adhesive. 3. Cut piece of insulation board to fit tightly into the damaged/patch area, sand the edges of the insulation board for a precise fit. 4. Coat the entire back of the insulation board to a thickness of 2mm of adhesive. Do not apply adhesive on the edge of the insulation board. 5. Install the insulation board on the substrate; make sure that the new insulation board is flush with the surrounding insulation board. 6. Mask the surrounding area with masking tape and polythene, cut piece of reinforcing mesh so that it will cover the patch area, lapping on to the original reinforced adhesive coat a minimum of 100mm. 7. The type and quantity of fixings and the fixing pattern to be used must be replicated in accordance with the original Job Specification detail. 8. Coat the area of patch with Enewall adhesive and embed the reinforcing mesh in the adhesive, using a small damp brush, smooth irregularities and feather the edge of the adhesive and allow curing for a minimum of 48 hours. 9. Apply a coat of Enewall render to area of patch, thickness to suit existing render. Using a small damp brush, feather the edge of the render into existing render coat. 5

6 5.0 Enewall EWI Repair of System 2 1. Using a disc cutter, cut through the Enewall render 300mm beyond the area of damage/patch using a small or scraper chisel, remove the render from the reinforced base coat. 2. Using a disc cutter, cut through the Enewall base coat 150mm beyond the area of damage, using a chisel remove base coat from the remaining 150mm of base coat to expose the stainless steel mesh. 3. Cut out area of damaged insulation board; clean the substrate of any old base coat. 4. Cut piece of insulation board to fit tightly into the damaged/patch area, sand the edges of the insulation board for a precise fit. 5. Coat the entire back of the insulation board to a thickness of 2-3mm of adhesive. Do not apply adhesive on the edge of the insulation board. 6. Install the insulation board on the substrate; make sure that the new insulation board is flush with the surrounding insulation board. 7. Mask the surrounding area with masking tape and polythene, cut piece of stainless steel reinforcing mesh so that it will cover the patch area, lapping on to the original reinforced mesh a minimum of 100mm and tie in place using stainless steel wire. 8. The type and quantity of fixings and the fixing pattern to be used must be replicated in accordance with the original Job Specification detail. 9. Coat the area of patch with Enewall base coat and embed the reinforcing mesh in the base coat, using a small damp brush, smooth irregularities and feather the edge of the base coat and allow curing for a minimum of 48 hours. 10. Apply a coat of Enewall render to area of patch, thickness to suit existing render. Using a small damp brush, feather the edge of the render into existing render coat. 6

7 6.0 Enewall EWI Repair of System 3 1. Using a disc cutter, cut through the Enewall render 150mm beyond the area of damage/patch using a small or scraper chisel, remove the render from the reinforced adhesive coat. 2. Cut out area of damaged insulation board; clean the substrate of any old adhesive. 3. Cut piece of insulation board to fit tightly into the damaged/patch area, sand the edges of the insulation board for a precise fit. 4. Coat the entire back of the insulation board to a thickness of 2-3mm of adhesive. Do not apply adhesive on the edge of the insulation board. 5. Install the insulation board on the substrate; make sure that the new insulation board is flush with the surrounding insulation board. 6. Mask the surrounding area with masking tape and polythene, cut piece of reinforcing mesh so that it will cover the patch area, lapping on to the original reinforced adhesive coat a minimum of 100mm. 7. The type and quantity of fixings and the fixing pattern to be used must be replicated in accordance with the original Job specification detail. 8. Coat the area of patch with Enewall adhesive and embed the reinforcing mesh in the adhesive, using a small damp brush, smooth irregularities and feather the edge of the adhesive and allow curing for a minimum of 48 hours. 9. Apply a coat of Enewall render to area of patch, thickness to suit existing render. 10. Using a small damp brush, feather the edge of the render into existing render coat. 7