Architectural paint research is the investigation of the successive colours and finishes a building or interior has had over time. The aim is to establish how a facade, window, door or room looked in a particular period, so that a restoration decision is based on evidence rather than on taste. The Dutch term is kleuronderzoek.
How it works
- Reconnaissance — establishing which components are original and where old paint layers can still be expected (behind beads, in rebates, behind later additions)
- Paint scrapes — at selected points, small windows are cut back with a scalpel so that all layers appear side by side
- Recording — for each layer the colour, gloss level and condition are described and coded against a colour fan
- Samples and analysis — small samples are embedded and examined in cross-section under the microscope, which also reveals primers, varnishes and pigments
- Report — findings per component, with a proposal for the colour scheme
Where it is used
- Restoration planning — evidence for the colour choice on facade, joinery and interiors
- Consent applications — for listed buildings, authorities often ask for research before approving a colour
- Building archaeology — the layer sequence reveals alterations, replacements and added components
- Interiors — wall paintings, stencilled decoration and marbling frequently come to light
Points to watch
- Plan the research before the decorating — once burning off or sanding has started, the evidence is gone
- Allow for discolouration — oil paint yellows and dirt accumulates; the colour you see in a scrape is almost never the original one
- Not every old layer is the “right” one — choosing a restoration period is a policy decision; the research supplies the facts, not the verdict
- Cost — an exploratory study with a few scrapes stays modest; extensive research with sampling and laboratory analysis rises with the number of components. Always get a quotation based on a clear research question
Related terms
- Paint scrape
- Building archaeology
- Listed building
- Restoration
- Pigment
- Types of wall paint
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