Robert Adam Ceilings: How Adam Plasterwork Was Designed and Made

Why Adam ceilings are different

If you want to recognise a Robert Adam ceiling, look for low-relief plaster set out in geometric compartments, picked out in soft colour, and often echoed in the carpet or floor. Our profile, Robert Adam: the architect who made ceilings into works of art, tells his life story, and Pompeii and the origins of Adam-style plasterwork explains where the motifs came from. This article does something different. It looks at the ceilings themselves: how they were designed, who made them, what to look for in the great houses and how to borrow the idea at home.

The V&A, which owns a surviving Adam ceiling, says that Adam's ceilings were the masterpieces of his interiors, combining mythological paintings with classical plasterwork motifs, and that their designs echo those of his floor carpets.^[1] That single sentence is a good field guide, and the rest of this article unpacks it.

From drawing to ceiling: the Adam office

Adam's ceilings began as drawings. Sir John Soane's Museum holds about 9,000 Adam drawings, which it says make up 80% of the surviving Adam Office drawings worldwide. Soane bought the collection in 1833 for £200.^[2] The collection includes 166 drawings by Giuseppe Manocchi, a Roman draughtsman who joined the office in 1765.^[2]

The museum's catalogue entry for Syon House shows what a commission looked like on paper. The Syon scheme for the 1st Duke of Northumberland, dated 1761 to 1769, includes designs for the hall, ante room, dining room, drawing room and gallery, with ceilings, pavements, chimneypieces, sideboards, mirror frames and carpets. Some were executed, some altered, some never built; the planned central circular saloon was never built.^[3] The point for ceilings is that they were designed as one piece with everything around them.

Others in the firm drew too. George Richardson worked in the Adam firm and published A Collection of Ceilings, Decorated in the Style of the Antique Grotesque. The V&A's hand-coloured plate for a library ceiling is, it says, typical of the style of the firm, drawing on antiquity while remaining decorative yet light.^[4] Historic England records that the stucco of the Marble Hall's frieze and coved ceiling at Kedleston is by Joseph Rose to a design by Richardson.^[5]

Who made them: Joseph Rose and the plasterers

A designer drew; a plasterer made. Joseph Rose is the name linked to many Adam ceilings. Historic England credits him with the stucco at Kedleston and with the plasterwork at Home House, built in 1773 to 1776.^[5][6] The Worshipful Company of Plaisterers adds that Joseph Rose Snr and his brother Jonathan did the plasterwork in the Van Dyck Room at Wentworth House, that Joseph was appointed Master of the Company in 1775 and that he also worked at Chatsworth, Harewood House and Kedleston.^[7]

The record is thinner than one would like on the technique itself. Our understanding, which is general knowledge of lime and gypsum plastering and not something we can attribute to a specific source here, is that a plasterer would work from the drawing, run or cast the repeating ornament and fix it to a prepared ceiling. Our article on how a plaster piece is cast describes the modern version of that casting.

Not every ceiling credited to Adam was made as one piece of plaster. The V&A's Adelphi ceiling, about 1771, is plaster with oil paint on canvas-backed paper. Robert Adam is its designer, and its mythological figures are painted rather than modelled.^[1] It shows how plasterers, painters and decorators combined.

Anatomy of an Adam ceiling

The descriptions in the listings and museum records agree on a vocabulary. At Saltram, Historic England describes a coved ceiling with three panels, with ovals, concave diamonds and pastel-painted anthemion, set on a carved entablature, and says the rooms show Adam's move from Rococo detail to low-relief Neo-Classical decoration.^[8] At Kedleston the Music Room has what it calls a delicate plaster ceiling designed by Adam.^[5] The V&A's Adelphi ceiling has griffins, scrolls and festoons, the Four Seasons in rectangular plaques and a central roundel of Apollo with horses.^[1]

Put together, the main parts are these:

• A central roundel or patera, which may hold a painting.
• Compartments around it: ovals, circles, semicircles and concave diamonds.
• A border of small repeating motifs.
• Festoons, griffins and scrolls that link the parts.
• Pastel colour, with stronger colour in painted panels.

Room by room: what to look for

The following houses are all named in the sources above. Check opening times before you go.

The first three appear in our profile article; the others show how far the style travelled.

A matter of taste

Not everyone loved the style. The V&A records that Horace Walpole dismissed Adam's ceilings as "Gingerbread and snippets of embroidery".^[1] The same record says the ceiling's treatment was based on ancient Roman ceilings.^[1] That is the thread to follow back to Pompeii and Rome.

Ceilings and the rest of the room

An Adam ceiling was rarely a stand-alone feature. The Soane Museum's Syon scheme lists ceilings alongside pavements, chimneypieces, sideboards, mirror frames and carpets, all designed together.^[3] The V&A says the ceiling designs echo those of the carpets.^[1] That is why Adam rooms feel so resolved: the pattern overhead is answered underfoot, and the wall decoration sits between the two.

It also explains why a single surviving ceiling can mislead. If the carpet, the colours and the furniture have gone, the plaster is only part of the picture. At Syon, Adam could not alter the plan he had been given, so he used columns, screens and colour to shape the rooms instead.^[9] Standing in the room, ask what the ceiling is doing for the proportions, not only what it looks like.

Our rule of thumb for judging a room is to look for three repeats: a shape in the ceiling, the same shape in the floor or rug, and a third echo in a mirror, door or wall light. If you find all three, the designer was thinking about the room as a whole.

Caring for an old ceiling

If you own a house with period plaster, treat it gently. Old paint may contain lead, so do not dry-sand or scrape ornament. Textured coatings from the twentieth century, including some Artex, may contain asbestos, so do not disturb a ceiling you suspect without having it tested first. Both are matters for a qualified specialist.

Cracks, sagging or damp stains are signs to call a conservation plasterer or an architect with listed-building experience before you repaint. If the building is listed, alterations may need consent; our guide to finding out if your house is listed explains how to check. Our guide to caring for plaster decor covers dusting and gentle cleaning of ornament.

The most useful first step is simply to look at what is already there. Photograph the ceiling in raking light, note which areas are crisp and which are clogged with layers of paint, and compare it with the features above before you decide what to restore.

Colour: do not repaint it white

An Adam ceiling is as much about colour as shape. English Heritage's account of Kenwood says the library has been redecorated in its original colour scheme, following paint research carried out in 2012.^[11] Syon Park says the Great Hall has been painted using the original Robert Adam colours.^[9] Historic England describes delicate colour schemes at Home House.^[6]

The lesson for a home is plain: if you have a ceiling with Adam-style plaster, do not assume white is right. Look at the colours the room might once have had, and repaint in a soft shade with the relief picked out. Our guide to choosing the best paint for plaster details covers the practical side.

Borrowing the idea at home

You do not need a country house to use Adam's lessons.

1. Choose a classical rose. A Windsor Ceiling Rose has the fluted rosette feel of a patera, while the oval Carlton Ceiling Rose suits a longer room. Our guide to ceiling rose size helps with proportion.
2. Echo it. Repeat the rose's shape in a rug, a mirror or a pair of Fluted Wall Lights.
3. Keep the relief low. A few crisp shapes beat a heavy one.
4. Use soft colour. One pastel, with the relief in a lighter tone.
5. Add a door detail. A Laureate Overdoor Pediment brings a laurel motif above a door.

Fitting a rose is a job many people do themselves, and our guide to fitting a plaster ceiling rose explains how. Anything involving electrical wiring needs a qualified electrician.

Common mistakes

• Calling every Georgian ceiling an Adam. Many plasterers and designers worked in the style; the Adam firm included James as well as Robert.
• Forgetting the restoration. The V&A notes that half of the Adelphi ceiling retains its original painting and missing areas on the other half were repainted in the 1970s.^[1]
• Going heavy. The point is shallow relief.
• Ignoring colour. White may not be the original.^[11]
• Hanging weight from old plaster. See our guide to how much weight a ceiling rose can hold.

What to do next

1. Read the profile of Robert Adam if you have not already.
2. Visit one of the houses above and spend ten minutes looking up.
3. Pick a rose and a colour, and sketch the room.
4. Learn the wider period in our guide to Georgian interiors.

Keep reading

• Robert Adam: the architect who made ceilings into works of art
• Pompeii and the origins of Adam-style plasterwork
• A guide to Georgian interiors
• How a plaster piece is cast
• What size ceiling rose do I need?

Shop the look

Windsor Ceiling RoseCarlton Ceiling RoseFluted Wall LightLaureate Overdoor Pediment

Frequently asked questions

How do I recognise an Adam ceiling?

Look for low-relief plaster in geometric compartments such as ovals, circles and concave diamonds, with motifs like anthemion and festoons, soft colour and painted panels. The V&A notes that the ceiling designs echo the floor carpets.

Who made Adam’s plasterwork?

Master plasterers working to Adam office drawings. Joseph Rose is credited with the stucco at Kedleston and the plasterwork at Home House, and became Master of the Plaisterers’ Company in 1775.

What is a patera?

A round, flower-like disc used as an ornament at the centre or along a frieze. It is one of the classical motifs found in Adam-style schemes.

Where can I see Adam interiors?

Syon House, Osterley Park, Kenwood, Kedleston Hall, Saltram and Home House all have Adam interiors named by Historic England, English Heritage, the National Trust or the houses themselves. Check opening times.

Where are Adam’s drawings?

Sir John Soane’s Museum holds about 9,000, which it says is 80% of the surviving Adam office drawings. Soane bought them in 1833 for £200.

Were Adam ceilings always white?

No. Historic England describes delicate colour schemes, the V&A notes strong colours in painted panels, and English Heritage restored Kenwood’s library to its original colours after paint research.

What is the difference between Rococo and Adam plaster?

Historic England describes Adam’s move from Rococo detail to low-relief Neo-Classical decoration. Adam ceilings are geometric and shallow rather than curling and deep.

Can I get the look at home?

Yes: choose a classical rose, keep colour soft and echo the shape elsewhere in the room. Wiring a light fitting must be done by a qualified electrician.