Att 2 - Paint Specification.pdf

Paint Schedule

The information below is to identify individual Systems for building areas to be painted.

In order to achieve the optimum results it is extremely important to adhere to the systems and Site Work Instructions.

Prior to the start of the painting contract, Client and Painting Contractor must agree arrangements with regard to the Site Work Instructions listed below.

1. Section 2: Conditions of Use Building Repairs/Prior to Paint work

2. Section 2: Conditions of Use Responsibility to Confirm Surface as Specified

3. Section 6: Colour

Project Generic Interior Specification

Paintable Surface Finish Product Coats

Interior Surfaces

All previously painted plaster ceilings & soffits, etc.

Trade quality vinyl matt paint – for example Dulux Trade Vinyl Matt paint or technical and aesthetic equivalent

Kitchen, WC, Bathroom – All previously painted plaster walls

Trade quality eggshell paint – for example Dulux Trade Diamond Eggshell paint or technical and aesthetic equivalent

High Traffic Areas – previously painted plaster walls to high traffic areas such as corridors, staircase, etc.

Trade quality high performance paint – for example Dulux Trade Diamond High Performance paint or technical and aesthetic equivalent

All other previously painted plaster walls to general areas; e.g., lounge/bedroom, etc.

Trade quality matt paint – for example Dulux Trade Diamond Matt paint or technical and aesthetic equivalent

All previously painted woodwork to include: windows, window boards, doors & frame, skirting, balustrade, handrails, etc.

Trade quality high gloss paint – for example Dulux Trade High Gloss paint or technical and aesthetic equivalent

Previously painted metalwork, staircase balustrade, etc.

Trade quality high gloss paint – for example Dulux Trade High Gloss paint or technical and aesthetic equivalent

Previously painted heated metalwork to include: Central heating radiators and pipework, etc.

Trade quality eggshell finish paint – for example Dulux Trade Eggshell Finish paint or technical and aesthetic equivalent

RaynerJL Inserted Text

Building Part: All previously painted plaster ceilings & soffits, etc.*

Surface Substrate: Ceilings – Interior Plaster/Plasterboard

Previous Coating: Paint (Water Based)

Surface Condition: Defective – partial failure / breakdown (<50%)

Durability Performance: Normal

Finish Type: Water Based

Sheen: Low (Flat / Matt)

Required Finish Coat: Trade quality vinyl matt

Number of Finish Coats: 2

*Contractor to comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998 Paints and Varnishes ‐ Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).

*Products supplied for the carrying out of this specification to be compliant with Statutory Instrument 2005 No. 2773 (Environmental Protection) ‐ The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.

Preparation

Thoroughly clean down the surfaces to remove all dirt grease and surface contaminants.

Remove all blistered, poorly adhering or otherwise defective coatings. Powdery and friable surface coatings should be completely removed by scraping, brushing and washing. Allow the surface to fully dry before proceeding. Where appropriate, rub down sound areas to produce the necessary 'key' for good adhesion and 'feather' broken edges of existing coatings. *Dust off.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Priming

If surfaces remain powdery and friable after thorough preparation, they must be sealed with:

1 coat of trade quality primer – for example Dulux Trade Stain Block Primer or technical and aesthetic equivalent.

Prime all sound bare areas and areas exposed by removal of coatings with: 1 coat of trade quality vinyl matt paint of appropriate shade, thinned as appropriate.

Making Good

Make good cracks, holes and other imperfections with a trade quality interior filler – for example Polycell Trade East Sand Interior Filler or technical and aesthetic equivalent. Allow such making good to dry out thoroughly. Rub down smooth to match surrounding area and *dust off.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Bring Forward

Bring forward all making good with: 1 coat of trade quality vinyl matt paint of selected shade, thinned as appropriate.

Finishing

2 coats of trade quality vinyl matt paint of selected shade.

Building Part: Kitchen, WC, Bathroom – All previously painted plaster walls.*

Surface Substrate: Walls – Interior Plaster/Plasterboard

Previous Coating: Paint (Solvent Based)

Surface Condition: Defective – partial failure / breakdown (<50%)

Durability Performance: Normal

Finish Type: Water Based

Sheen: Mid (Satin / Silk)

Required Finish Coat: Trade quality eggshell

Number of Finish Coats: 2

*Contractor to comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998 Paints and Varnishes ‐ Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).

*Products supplied for the carrying out of this specification to be compliant with Statutory Instrument 2005 No. 2773 (Environmental Protection) ‐ The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.

Preparation

Remove all blistered, poorly adhering or otherwise defective coatings. Powdery and friable surface coatings should be completely removed by scraping, brushing and washing. Thoroughly clean down the surfaces to remove all dirt, grease and surface contaminants; whilst wet, produce the necessary ‘key’ for good adhesion by rubbing down sound areas with waterproof abrasive paper or pads (this is particularly important when applying water based systems to previous coatings that are known, or suspected to be, solvent based) and ‘feather’ broken edges of existing coatings. Rinse off and allow to dry. Allow the surface to fully dry before proceeding. *Dust off.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Priming

If surfaces remain powdery and friable after thorough preparation, they must be sealed with: 1 coat of trade quality primer – for example Dulux Trade Stain Block Primer or technical and aesthetic equivalent.

Prime all sound bare areas and areas exposed by removal of coatings with: 1 coat of trade quality eggshell paint of appropriate shade, thinned as appropriate.

Making Good

Make good cracks, holes and other imperfections with a trade quality interior filler – for example Polycell Trade East Sand Interior Filler or technical and aesthetic equivalent. Allow such making good to dry out thoroughly. Rub down smooth to match surrounding area and *dust off.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Bring Forward

Bring forward all making good with: 1 coat of trade quality eggshell paint of selected shade, thinned as appropriate.

Finishing

2 coats of trade quality eggshell paint of selected shade.

Building Part: High Traffic Areas – Previously painted plaster walls to high traffic areas such as corridors, staircase, etc.*

Surface Condition: Defective – partial failure / breakdown (<50%)

Durability Performance: High

Finish Type: Water Based

Sheen: Mid (Satin / Silk)

Required Finish Coat: Trade quality high performance

Number of Finish Coats: 2

*Contractor to comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998 Paints and Varnishes ‐ Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).

*Products supplied for the carrying out of this specification to be compliant with Statutory Instrument 2005 No. 2773 (Environmental Protection) ‐ The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.

Preparation

Remove all blistered, poorly adhering or otherwise defective coatings. Powdery and friable surface coatings should be completely removed by scraping, brushing and washing. Thoroughly clean down the surfaces to remove all dirt, grease and surface contaminants; whilst wet, produce the necessary ‘key’ for good adhesion by rubbing down sound areas with waterproof abrasive paper or pads (this is particularly important when applying water based systems to previous coatings that are known, or suspected to be, solvent based) and ‘feather’ broken edges of existing coatings. Rinse off and allow to dry. Allow the surface to fully dry before proceeding. *Dust off.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Priming

If surfaces remain powdery and friable after thorough preparation, they must be sealed with: 1 coat of trade quality primer – for example Dulux Trade Stain Block Primer or technical and aesthetic equivalent.

Prime all sound bare areas and areas exposed by removal of coatings with: 1 coat of trade quality high performance paint of appropriate shade, thinned as appropriate.

Make good cracks, holes and other imperfections with a trade quality interior filler – for example Polycell Trade East Sand Interior Filler or technical and aesthetic equivalent. Allow such making good to dry out thoroughly. Rub down smooth to match surrounding area and *dust off.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Bring Forward

Bring forward all making good with: 1 coat of trade quality high performance paint of selected shade, thinned as appropriate.

2 coats of trade quality high performance paint of selected shade.

Building Part: High Traffic Areas – All other previously painted plaster walls to general areas; e.g., lounge/bedroom, etc.*

Previous Coating: Paint (Water Based)

Surface Condition: Defective – partial failure / breakdown (<50%)

Durability Performance: Normal

Finish Type: Water Based

Sheen: Mid (Flat / Matt)

Required Finish Coat: Trade quality matt

Number of Finish Coats: 2

*Contractor to comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998 Paints and Varnishes ‐ Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).

*Products supplied for the carrying out of this specification to be compliant with Statutory Instrument 2005 No. 2773 (Environmental Protection) ‐ The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.

Remove all blistered, poorly adhering or otherwise defective coatings. Powdery and friable surface coatings should be completely removed by scraping, brushing and washing. Thoroughly clean down the surfaces to remove all dirt, grease and surface contaminants; whilst wet, produce the necessary ‘key’ for good adhesion by rubbing down sound areas with waterproof abrasive paper or pads (this is particularly important when applying water based systems to previous coatings that are known, or suspected to be, solvent based) and ‘feather’ broken edges of existing coatings. Rinse off and allow to dry. Allow the surface to fully dry before proceeding. *Dust off.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Priming

If surfaces remain powdery and friable after thorough preparation, they must be sealed with: 1 coat of trade quality primer – for example Dulux Trade Stain Block Primer or technical and aesthetic equivalent.

Prime all sound bare areas and areas exposed by removal of coatings with: 1 coat of trade quality matt paint of appropriate shade, thinned as appropriate.

Making Good

Make good cracks, holes and other imperfections with a trade quality interior filler – for example Polycell Trade East Sand Interior Filler or technical and aesthetic equivalent. Allow such making good to dry out thoroughly. Rub down smooth to match surrounding area and *dust off.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Bring Forward

Bring forward all making good with: 1 coat of trade quality matt paint of selected shade, thinned as appropriate.

2 coats of trade quality matt paint of selected shade.

Building Part: All previously painted woodwork to include: windows, window boards, doors & frame, skirting, balustrade, handrails, etc.*

Surface Substrate: Wood – Internal MDF Wood – Internal non resinous Softwood/Hardwood

Previous Coating: Paint (Solvent Based)

Surface Condition: Defective – partial failure / breakdown (<50%)

Durability Performance: Normal

Finish Type: Solvent Based

Sheen: High (Gloss)

Required Finish Coat: Trade quality high gloss

Number of Finish Coats: 2

*Contractor to comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998 Paints and Varnishes ‐ Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).

*Products supplied for the carrying out of this specification to be compliant with Statutory Instrument 2005 No. 2773 (Environmental Protection) ‐ The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.

Preparation

Remove all blistered, poorly adhering or otherwise defective coatings. Open‐up all joints which are not tight fitting and rake out thoroughly. Wash down remaining areas in good condition with soap and water, detergent solution or suitable solvent to remove all dirt, grease and surface contaminants; rinse off and allow to dry. Rub down overall to provide a ‘key’ and ‘feather’ broken edges of existing coatings. *Dust off.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Priming

Spot prime any bare metal, metal fixings, nail heads, etc. with: 1 coat of trade quality metal primer – for example Dulux Trade Metal Primer or technical and aesthetic equivalent.

Prime all bare areas and areas exposed by the removal of coatings with: 1 coat of trade quality wood primer, colour: white – for example Dulux Trade Wood Primer White or technical and aesthetic equivalent.

Make good all nail‐holes, open joints and open grain, etc. with a trade quality filler as appropriate to the surface and according to the manufacturer’s instructions. Allow making good to dry before being rubbed down smooth and *dusted off.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Finishing

1 coat of trade quality undercoat of selected shade – for example Dulux Trade Undercoat or technical and aesthetic equivalent of selected shade.

1 coat of trade quality high gloss paint of selected shade.

Building Part: Previously painted metalwork staircase balustrade, etc.*

Surface Substrate: Metal – Ferrous (Iron & Steel) (Internal)

Surface Condition: Defective – partial failure / breakdown (<50%)

Durability Performance: Normal

Finish Type: Solvent Based

Sheen: High (Gloss)

Required Finish Coat: Trade quality high gloss

Number of Finish Coats: 2

*Contractor to comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998 Paints and Varnishes ‐ Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).

*Products supplied for the carrying out of this specification to be compliant with Statutory Instrument 2005 No. 2773 (Environmental Protection) ‐ The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.

Thoroughly clean down to remove all surface contamination. Carefully scrape back to a firm edge all areas of defective paint coatings and rub down to ‘feather’ the broken edges. Scrape and wire brush corroded steel to produce a clean metal surface. Rub down with a suitable abrasive and *dust off. All manually prepared surfaces should be prepared to a minimum standard of BS EN ISO 8501‐1: 2007 St3 at the time of coating.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Priming

Prime all bare metal with: 1 coat of trade quality metal primer – for example Dulux Trade Metal Primer or technical and aesthetic equivalent, applied to give a minimum wet film thickness of 80 microns, giving a minimum dry film thickness of 40 microns.

Bring Forward

Bring forward all primed areas with: 1 coat of trade quality undercoat – for example Dulux Trade Undercoat or technical and aesthetic equivalent, applied to give a minimum wet film thickness of 45 microns, giving a minimum dry film thickness of 25 microns.

Finishing

1 coat of trade quality undercoat – for example Dulux Trade Undercoat or technical and aesthetic equivalent, applied to give a minimum wet film thickness of 45 microns, giving a minimum dry film thickness of 25 microns.

1 coat of trade quality high gloss applied to give a minimum wet film thickness of 45 microns, giving a minimum dry film thickness of 25 microns.

Building Part: Previously painted heated metalwork to include:

central heating radiators & pipework, etc.*

Surface Substrate: Metal – Copper, Ferrous metalwork

Surface Condition: Defective – partial failure / breakdown (<50%)

Durability Performance: Normal

Finish Type: Solvent Based

Sheen: Mid (Satin/Silk)

Required Finish Coat: Trade Eggshell Finish

Number of Finish Coats: 2

*Contractor to comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998 Paints and Varnishes ‐ Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).

*Products supplied for the carrying out of this specification to be compliant with Statutory Instrument 2005 No. 2773 (Environmental Protection) ‐ The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.

Preparation

Degrease where necessary and wash down the surfaces with a suitable detergent solution to remove dirt, chalking paint and other contaminants. Rinse off with clean water and allow to dry. Carefully scrape back to a firm edge all areas of poorly adhering or defective coatings and rub down to ‘feather’ broken edges. Rub down sound paintwork with a suitable abrasive to remove ‘nibs’ and provide a ‘mechanical’ key. *Dust off. Ensure the surface is clean and dry before proceeding.

*When rubbing down dry and/or dusting off wear a suitable face mask to be worn to avoid the inhalation of dust.

Priming

Spot prime any bare ferrous metal, metal fixings, nail heads, etc. with: 1 coat of trade quality metal primer – for example Dulux Trade Metal Primer or technical and aesthetic equivalent.

Finishing

2 coats of trade quality eggshell finish each applied to give a minimum wet film thickness of 58 microns per coat, giving a minimum dry film thickness of 26 microns per coat.

Information on Conditions of Use

Relevant Code of Practice Care and attention must be employed when using the systems and the relevant British Code of Practice must also be complied with. BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998 Paints and Varnishes ‐ Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).

Relevant Information Sheets and Instructions to be Retained on Site A copy of all the documents supplied, Product Information, Health and Safety Information and Site Work Instructions supplied must be retained on site during the contract period for easy reference by site and visiting personnel.

Building Repairs / Prior to Paint work Prior to the start of the painting contract the Client and the Painting Contractor must agree arrangements with regard to repair work. Prior to Painting repairs to substrates which are to be coated must be undertaken by the Clients' choice of Contractor in advance of the expected painting start date. The aforementioned substrates must be dry in depth (where applicable) and have been accepted by both parties as in a suitable condition to paint. The notification procedures when, during the painting contract, a painter discovers damaged or missing substrates requiring replacement, must be in place and be clearly understood. The aforementioned replacement of substrate must be identified as not part of the painting contract and must therefore be undertaken by the Clients' choice of Contractor.

Responsibility to Confirm Surface as Specified It is expected of the Painting Contractor that he ensures/confirms that the surface to be painted is ‘as described’ in the System Sheet he is given. If the existing coating is not ‘as described’ (e.g.

the existing coating is Solvent Based and not Water Based or the substrate is Galvanised Metal & not Ferrous Metal) then it is the Painting Contractor’s responsibility to report back to the Client and to then be instructed which alternative System Sheet to use.

Instructions Provided Separately Any instructions provided separately must be used in conjunction with the documents supplied.

Full Extent of Work Contractors must satisfy themselves as to the full extent of the work to be carried out, whether mentioned in the documents or otherwise.

Measurements and Close Inspection Measurements and close inspection must be made to enable accurate preparation of tenders.

Representative Access Contractor Representatives will be allowed free access to the work and any access equipment (ladders etc.) shall be provided by the Contractor immediately on request. The actual percentage of properties or work inspected and recorded will have been agreed with the client prior to commencement of the contract.

COSHH Assessment The contractor must carry out a full assessment of Risk as required under COSHH Regulations 1994, (or as amended) before commencing work.

Preparation of Surfaces / Sequence of Work The contractor must adhere to the detailed preparation of surfaces and sequence of work as laid down in these documents.

Conditions Suitable/Unsuitable for Painting Most coatings are dependent on the evaporation of the solvent or thinner at the initial drying stage. High or Low Temperature and/or High Humidity will affect coating application and can permanently affect the coating’s performance. It is therefore recommended that application is not carried out when the temperature falls below 5 degrees centigrade (Solvent borne) or 8 degrees centigrade (Water borne) or when the relative humidity exceeds 80%. Consideration must also be taken regarding the temperature of the surface to which the coating is to be applied. Refer to BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) for further guidance.

Personal Protection Work in well ventilated areas. Use suitable personal protective equipment (respiratory, eye and skin), as necessary. Treatments for the removal of surface coatings (such as sanding, burning off, use of chemicals) may generate hazardous dust and/or fumes. Manufacturers advice should be followed at all times.

Log of Ambient Conditions Keep a log of ambient conditions during the course of the work in line with BS 6150 and ISO 12944: 1998 Paints and Varnishes ‐ Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended).

Storage Extremes of temperature and humidity during storage must be avoided.

Accurate Logs and Records of Materials and Surfaces Log all batch numbers and deliveries of materials used and the surface to which they are applied.

Materials to be Thoroughly Mixed and Stirred All materials must be thoroughly mixed or stirred before use unless otherwise directed and used in accordance with manufacturer’s instructions.

Inspection of First Coats First coats must not be applied until the surfaces have been inspected by the client and/or his/her agent.

Inspection of Undercoats / Finishing Coats No undercoats or finishing coats must be applied until the previous coat has been similarly inspected and approved by the client and/or his/her agent.

Effects on Foodstuffs / Commencing Food Operations Where coating systems are quoted, the user must ensure that they have no harmful effects on the operatives or foodstuffs. Before re‐starting to use foods or raw food materials, or before commencing any food handling operation, the client or his authorised representative must satisfy himself/herself that the area is thoroughly clean and free from odour and clear of all painting materials.

Volatile Organic Compounds Products supplied for the carrying out of this specification are compliant with Statutory Instrument 2005 No. 2773 (Environmental Protection) ‐ The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.

Walls –Areas of use The systems for Walls and Ceilings are suitable for Internal Plaster, Render, Block, Approved Brick and Concrete, Plasterboards, Paperfaced boards, Cement boards, Calcium Silicate boards and Fibre Insulation type boards and External Render, Pebbledash, Tyrolean, Block, Approved Brick, Concrete, Cement Boards and Calcium Silicate Boards.

Wood – Resin & Knots When encountering knots and resinous areas to be painted, apply two thin coats of a suitable Knotting Solution and allow to harden. For further guidance re: knot content, etc., please refer to BS EN 942.

Wood – Moisture Content The moisture content of the timber should not exceed 18% for exterior use and 14% for interior use.

Metals – Complexity The complexity of Metal as a Substrate is clearly illustrated on the Condition of Previous Coating Table v2.

Painted Finishes / BS Code of Practice The whole of the painted surfaces shall be finished in accordance with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and additional requirements quoted.

The surfaces coated should exhibit a fair and even surface of constant colour, substantially free of brushmarks, fatty edges, etc. Each coat shall be allowed to harden and rubbed down before the next coat is applied.

Dampness No materials should beapplied to surfaces that are structurally or superficially damp. All surfaces must be free from condensation, dirt, etc. before and during treatment. To prevent the re‐ occurrence of condensation, ensure that there is suitable ventilation.

Efflorescence Where efflorescence is present, remove fluffy efflorescence deposits by rubbing with dry Hessian sacking at frequent intervals. Check salts do not return within 48 hours, before proceeding.

Remove hard shiny efflorescence by careful *manual abrasion taking care not to damage the surface finish of the substrate. On new buildings it is advisable not to use solvent based paints for at least 12 months as this will allow the surface time to dry out thoroughly.

*When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation of dust.

Internal Mould Growth Mould growth on internal surfaces must be treated prior to the application of any subsequent paint coating. Surfaces which are contaminated with mould should be scraped to remove all heavy deposits before being treated with a commercial fungicidal product – for example 'Dulux' Weathershield Multi‐Surface Fungicidal Wash or technical equivalent (by brush only). Follow manufacturer’s instructions and retreat after the appropriate time has elapsed, if necessary.

Ensure all surfaces are fully dry before proceeding.

Caution Use fungicides safely. Fungicidal products should not be allowed to come into contact with foodstuffs.

Rubbing Down & Dusting Off When rubbing down use a wet flatting process. Where it is not possible or practical to use a wet process, wear a suitable face mask when rubbing down dry and/or dusting off to avoid the inhalation of dust. When it is known or suspected that coatings contain lead refer to the COR for further information. When preparing wood, wire wool and metallic brushes must not be used.

Friable / Powdery Surfaces Friable or powdery surfaces must be treated with the primer most suited to the substrate prior to the application of any subsequent compatible coating.

Opening edges / Undersides of Sills Ensure that doors and opening windows, etc., are 'eased' as necessary before coating. All opening edges of doors and windows and undersides of sills are included in the painting work.

Glazing – Repair & Replace Where Necessary All glazing compounds and glazing repairs must comply with BS 8000: Part 7: 1990 (Code of practice for glazing). Hack out all cracked or defective glazing putties. Remove all defective or loose beading. Clean the rebates and apply the appropriate priming product to all bare areas.

Similarly, treat beading and any new wood which is to be spliced‐in on all faces and edges, i.e.

rub down and prime.

REPLACEMENT OF GLAZING COMPOUNDS WHERE NECESSARY: When dry, re‐glaze with appropriate glazing compound and allow to harden before further treatment. The compound manufacturer's recommendations must be adhered to, even if at variance with this system.

REPLACEMENT OF BEADING WHERE NECESSARY: Bed in suitable external quality mastic in accordance with the manufacturer's instructions and screw down tightly using non‐ferrous fixings.

Putty Glazing/Silicon Products Allow Putty to set for at least 7 days and, before a further 14 days, seal the putty with an oil based primer. Fully coat and protect the putty with a coating system as soon as it is sufficiently hard.

Silicone ‐ Based products should only be applied upon completion of the finishing coats.

Stoppers / Fillers Be sure to use fillers specifically designed for the Substrate. Apply oil based stoppers/fillers after priming. Apply water based stoppers/fillers before priming unless recommended otherwise by the manufacturer. Translucent finishes for Timber are not designed to obscure the substrate, therefore filling and stopping should be avoided wherever possible and should be done with great care. When using translucent coatings for Wood, there is little point to filling fascia board joints and glazing bead joints as the change in grain from one section to the other is often obvious, drawing attention to the filler.

Trade Fillers For precise application, completion and storage guidance please refer to the product packaging or product data sheet.

Off Site Preparation All off site preparation and coating to be carried out under cover in a suitable environment with adequate lighting.

Proper Storage Store all items, both before and after coating, in a clean, dry area protected from the weather and mechanical damage, properly stacked with spaces to permit air circulation and prevent sticking of surfaces.

Application Suitability of Primers All primers must be appropriate for the surface and for subsequent coats.

Application of Finishing Coat No coatings shall be left in an exposed or unsuitable situation for an undue period before applying the finishing coat.

Application Methods Refer to BS 6150: 2006 Code of Practice for Painting of Buildings Section 9.3 Application Methods Page 103. All methods of application are comprehensively dealt with in this Section.

Colour

Good Working Practice When Using Colour Before application, ensure that all materials are from the same batch. If mixed batch tins are purchased they should be 'boxed' to avoid potential colour variation. 'Boxing' requires the mixing together of the different batches in a larger container to ensure consistency of colour.

Colour variation can occur when purchasing a colour for a project from a variety of sources rather than from one source and/or location. The risk of colour variation, can be reduced by taking the following action:

(a) Avoid using a mixture of ready mixed colour and in store tinted colour

(b) Avoid using a variety of batch numbers whether ready mixed or in store tinted. For the purpose of in store tinted colour a batch is considered to be materials tinted on one machine at the same time.

(c) Purchase sufficient material for the project at one time from the same source of supply tinted on the same tinting machine. Where this is not appropriate due to storage restrictions, the supplying merchant may be able to store sufficient quantities in store for call off when required.

It is good working practice to hold back sufficient original material to 'touch up' any areas of damage to the paint film prior to completion. With some paints and / or colours, especially products with mid or high sheen and / or deep colours, it may be necessary to recoat the whole area to avoid noticeable differences in film appearance for example under acute lighting conditions.

Selection of Colours and Finishes/Trial Areas/Additional Coats All colours and finishes to be selected and approved by the client or client’s agent. Provision must be made for the execution of patterns or trial areas on site if required. In general, the quantity of finishing coats specified are based on ‘as existing’ colours and finish types.

Allowance must be made for any deviation from the standard specification, in which case additional coats may need to be applied. Contractor will be informed of the colour schedule prior to origination of the project documentation.

Specified ‐ “As Existing” Colour Many specifications are written on the basis of the finish colour being 'As Existing'. Provision must be made by the successful Contactor, with the Client, to confirm and agree the ‘actual’ colours to be applied before application. Should a change of colour be instructed, then agreement must be reached by all parties as to the possible need for additional coats and the cost significance of such action.

Special Processes Colours When any colour is to be used on rough surfaces, or where a marked change of colour is to be made, an amended process may be required and the finishing system for that surface amended to include the additional coats necessary. The finishing system for a surface that is to be significantly lighter than the previous colour (e.g. from Black to White) may also need to be amended to include the application of further coats of finish or the use of different colours or products as undercoats prior to finishing. Some strong colours, such as Poppy and Monarch in the revised BS4800 range, NCS colours with a colour intensity of 60 or more and also some Colour Palette colours as detailed below, cannot be made with the same hiding power as ordinary colours if they are to have satisfactory durability and purity of colour and therefore may require extra coats to be applied to achieve full opacity. Some strong colours, as listed below, cannot be made with the same hiding power as other colours if they are to have satisfactory durability and purity of colour.

When these colours are to be used on rough surfaces, or where a marked difference in colour is to be made, additional coats or special processes may be necessary.

Refer to BS 6150: 2006 Code of Practice for Painting of Buildings Appendix B: Paint Colours (or as amended). See relevant colour card for further guidance.

Colour Guidance NCS: All colours with a colour intensity of 60 or more; e.g., (1060‐Y10R).

Colour Palette: BB, RB, BG colours with chroma value >350.

Colour Palette: YY, YR, GY colours with chroma value >450.

Colour Palette: RR, GG colours with chroma value >400; e.g., (45YY 71/664).

Operation and Maintenance

Yellowing/Discolouration of Solvent‐borne Finishes Solvent‐borne finishes tend to yellow in situations where direct daylight is excluded. This is more obvious with white and light – coloured finishes. If freedom from yellowing is important, contact the manufacturer for further guidance.

Cleaning Specified Surfaces / Removal of Paint Splashes Where instructions are given not to paint, and to wash or dust clean, this work must be undertaken prior to painting surrounding areas and should be left clean and free from paint splashes.

Cleaning Maintenance for Internal Walls Finished in Conventional Water Based Paints Where possible the surface should be lightly brushed or dusted to remove dust etc. When more intense cleaning is required, gently wash down the surface using a soft sponge and mild detergent solution to remove dirt and light marking. Heavy pressure should be avoided to reduce the level of polishing or burnishing of the painted surface. Gently clean down with clean water and remove any excess water to avoid staring or streaking. Abrasive Cleaners and coarse cloths should not be used.

Cleaning Maintenance for Internal Walls Finished in Water Based Paints Common stains can be removed by cleaning promptly with a soft cloth and clean soapy water.

Allow to dry. Vigorous scrubbing and the use of abrasive cleaners or scourers may impair the finish. Only apply enough pressure to remove marks. Oil based stains and marks from some pens/felt tips/permanent markers may not be completely removed. Full durability develops 7 days after initial application. For further information about removing specific stains, please contact the manufacturer.

Table 1 – Condition of Surfaces to be Coated Walls/Wood/Floors/Plastics

Stage Surface to be Coated Description

1 New New surface requiring cleaning and minimal preparation to receive surface coating application.

2 Uncoated (not applicable to all Substrates)

Existing uncoated surface having had some degree of exposure to natural conditions but requiring minimal preparation.

3 Factory Coated/Primed (not applicable to all Substrates)

New or existing surface with factory applied coating of factory applied primer, requiring some cleaning and preparation.

4 No Breakdown Coated surface in excellent condition showing no coating failure, minimal cleaning and preparation required.

5 Light Failure (<20%) Coatings show some breakdown. (<20%) not only in high wear areas; surfaces will require cleaning down, scraping back of failed coatings and some minor surface repairs.

6 Partial Removal (20‐50% Failure)

Medium breakdown of existing coatings (20‐50%), failed coatings should be removed and substrate repairs carried out where necessary.

7 Heavy Failure/Incompatible Coatings

All coatings must be completely removed prior to substrate repairs being carried out where necessary.

Table 2 – Condition of Surfaces to be Coated Metals

Surface to be Coated Description

1 New Hot Rolled Steel (Heavy Gauge Structural Steel; e.g., RSJ’s)

Grade A, B, C, D as described in BS7079 Part A1 1989 (Specialised Factory Coatings Used)

2 Hot Rolled Steel Weathered (Uncoated)

1‐2 Cold Rolled Steel (Light Gauge;

e.g., Sheeting) & Cast/Wrought Iron

New or Weathered (Uncoated)

1‐2 Hot Dipped Galvanised & Zinc New or Weathered (Uncoated)

1‐2 Cast Aluminium New or Weathered (Uncoated)

1‐2 Polished Extrded Aluminium New or Weathered (Uncoated)

1 Copper, Lead and Brass New

4 Metal – No Breakdown Previously factory primed or fully decorative coated metal.

In excellent condition showing no coating failure and no signs of rusting. Minimal Cleaning and preparation required.

5 Light Failure (<20%) Previously factory primed or full decorative coated metal

Showing some breakdown (< 20%) not only in high wear areas. Corrosion may be evident (0.05%‐ 1.00% failure). Surfaces will require cleaning‐down and scraping back of failed coatings, etc.

6 Partial Removal (20‐50% Failure) Previously factory primed or full decorative coated metal

Medium breakdown of existing coatings (20‐50%).

Corrosion may be evident (1%‐8%). Surfaces will require cleaning‐down and all failed coatings should be removed.

7 Heavy Failure *Significant Rusting/Incompatible Coatings Previously factory primed or fully decorative coated metal

Significant coating failure (> 50%) and/or *significant corrosion (>15%) All coatings must be completely removed.

*Important Note Irrespective of the coatings condition, where significant corrosion is evident all previous coatings must be removed.