8.5 Painting and decorating
MATERIALS STANDARDS
| 8.5 - M1 | Material standard |
| 8.5 - M2 | Preservatives, stains and paints |
| 8.5 - M3 | Prefabricated joinery |
(a) meet the Technical Requirements
(b) take account of the design
Materials that comply with the design and the guidance below will be acceptable for painting and decorating.
Materials for painting and decorating should comply with all relevant standards, including those listed below. Where no standard exists, Technical Requirement R3 applies (see Chapter 1.1 'Introduction to the Standards and Technical Requirements').
References to British Standards and Codes of Practice include those made under the Construction Products Directive (89/106/EEC) and, in particular, appropriate European Technical Specifications approved by a European Committee for Standardisation (CEN).
PRESERVATIVES, STAINS AND PAINTS
Items to be taken into account include:
(a) preservatives
Timber preservatives should be selected in accordance with Chapter 2.3 'Timber preservation (natural solid timber)' (Materials).
(b) knotting
| BS 1336 | | Specification for knotting. |
However, knotting may not be effective against heavy exudation of resin which may disrupt finishes.
(c) stains
| BS 6952 | | Exterior wood coating systems. |
(d) primers
| BS 4756 | | Specification for ready-mixed aluminium priming paints for woodwork |
| BS 5082 | Specification for water-borne priming paints for woodwork | |
| BS 5358 | Specification for solvent-borne priming paints for woodwork. |
(e) proprietary paint systems
Paint systems should be suitable in all respects for their intended use and situation. Selection should be in accordance with manufacturers' recommendations.
PREFABRICATED JOINERY
Protection in accordance with Clause M2 may be required.
Prefabricated joinery to be painted or stained should have been primed or given a first coat of stain or sealer before fixing.
Where primer is damaged, surfaces should be re-primed.
