Winter Clean in the Ballroom

Completing the first room of the winter clean is always a good feeling.  It took 8 days and there were a couple of extra challenges this year.  In preparation for the next phase of external building works the window in the Ballroom is to be boarded up to prevent dust ingress from the work to the window and stone work.

In order for this to be built we have had to take down the pelmet and curtains and the big red blind, as well as move some items of furniture up to the other end of the room and take four paintings down off the wall.  This was definitely a job for the scaffold tower, which was already in use in the room for high level ceiling and picture frame cleaning.

A view of the Ballroom ‘put to bed’ for the winter from the scaffold tower.

Until we got up to the top of the scaffold tower we were not exactly sure how the pelmet was secured in place.  We soon discovered it was simply nailed to a bit of wood!  We used the end of a flat head screw driver and pliers to release the nails.  We also discovered that what from the ground looks like a pelmet that is all of one piece, it is actually in four separate sections.  Which was good news as it made it easier to handle and not as heavy as it would have been in one piece.

The pelmet was nailed in to a wooden shelf attached to the wall with brackets.

The first section of the pelmet down and ready for a surface clean.

The pelmet and curtains are scheduled for cleaning every five years.  They were last done (in-situ) in 2009.  So although they were not due a for full clean just yet we took advantage of the fact that they were coming down to remove any surface dust and debris.

Lucy passes the second section of the pelmet down the scaffold tower to Sarah.

Sarah and Lucy laying out a section of pelmet on Tyvek. Each section has been interleaved with Tyvek to keep dust off them while they are down from the window.

Some of the interesting creatures in the frieze around the top of the panelling.

Lucy uses a soft pony hair brush to surface clean a section of the pelmet, by teasing cobwebs, clumps of dust and debris in to the nozzle of the vacuum cleaner.

The bay window after we had finished preparing the area for the dust protection to be installed.

Paintings from the South wall either side the bay window have been taken down and stored at the other end of the Ballroom while the building work takes place.

You can watch our winter clean work in the Ballroom on our timelapse film.

Emily, Sarah, Lucy and Melinda

Focus on the Ballroom – Part One

The Ballroom is one of the most striking and unique showrooms at Knole.

The Ballroom at Knole

The distinctive decoration dates from the time of the 1st Earl of Dorset Thomas Sackville, who upon acquiring the house in 1603, began several years of renovations and remodelling. He wanted to transform the house into a fashionable and imposing country residence which would reflect his position as a leading figure of the Royal court. Contemporary accounts suggest Thomas employed master craftsmen, many of whom had previously worked at Royal palaces.

Between them they created many of the structural features that we still recognise today; the distinctive frieze and panelling, the plaster ceiling depicting the Sackville leopards and the magnificent marble fireplace.

The frieze, decorated with mermaids and mermen and hippocamps (seahorses) & the marble fireplace.

The spectacular marble fireplace.

With so much to consider in the Ballroom, it presents us with a number of conservation challenges.

As we have no environmental control in this part of the house, the Ballroom, like the other showrooms, suffers from fluctuating relative humidity. The constant change from dry to damp and back again can cause the panelling to split, develop staining and threatens the intricate carvings around the frieze.

Splits in the panelling and from the frieze…

…to the ceiling.

The changing humidity and temperature (along with the plentiful food supply) also help to create the perfect home for pest insects, particularly clothes moth and carpet beetle larvae. These have recently caused damage to the Ballroom’s 17th Century carpet.

A sticky, pheromone trap from the Ballroom - complete with captured moths.

In order to reduce this problem, we removed the old, woollen underlay which was providing the pests with plenty of food and replaced it with a synthetic one, which we hope will discourage the pests by reducing their food supply. The carpet was cleaned and the floorboards beneath were treated with insecticide to kill any remaining pests.  (More information about how we are tackling this can be found in an earlier blog entry http://knolenationaltrust.wordpress.com/2011/12/18/how-many-people-does-it-take-to-roll-a-carpet/).

The fantastic marble fireplace is made from black, white and grey marble and alabaster. Over time, cracks had developed which required consolidating to prevent further cracking.  In 2012 Cliveden Conservation repaired the cracks to ensure the safety of the fireplace.

Cracks in the stone were filled and secured by Cliveden Conservation.

A leaky water pipe in the attic above the Ballroom caused water damage and staining to the ceiling. When the stain had fully dried, the Conservation Team scaled the scaffolding tower to remove surface mould that had developed with a smoke sponge. This is a fine, specially treated sponge made from vulcanised rubber which is used to clean dirt or soot from surfaces such as paper or plaster without the use of water.

Water damage to the ceiling.

We hope that as the Inspired by Knole project progresses and we are able to gain a tighter control on the environmental conditions, it will help us to prolong the life of this amazing room and the furniture and art work that can be found here.

Lucy, Emily, Melinda and Sarah.

What’s beneath your feet…?

There are so many things to look at in the show rooms at Knole, Stuart furniture from the Royal Palaces, hundreds of portraits, including some by Reynolds, Van Dyck and Lely, rare carpets and tapestries, all housed in rooms with beautifully detailed wood panelling and fine Jacobean ceilings.  However, the one thing visitors probably never look at are the floors, which have a beauty all of their own, and are in fact as fragile as some of the Knole’s famous textiles.

The floor in the Brown Gallery. The vertical boards are 19th century oak, and the horizontal are pine, also 19th century. The change in direction and wood, shows where the gallery originally stopped and there was another room.
The oak boards are some of few in the show rooms in good condition, despite them receiving double the footfall of anywhere else as visitors walk over them twice along the visitor route.e

The show room floors are a mixture of oak and pine, some were laid much later in the 19th century and others are original 17th century floorboards, such as in the Cartoon Gallery.  They are affected by the agents of deterioration like the rest of the collection.  The uncontrollable levels of relative humidity cause the wood to swell and contract in the changing damp and dry conditions.

Floorboards in the Cartoon Gallery. When you stand at one end and look all the way down the floor you can see (although not very well in this photo) that the floor has been laid in a zigzag. There seems to be no reason for the zigzag effect, as the gallery was originally covered in rush matting, the zigzag would not have been seen. They are 17th century pine boards.

The floors aren’t safe from insect attack either.  Our wood-boring pest insects have had attacked the pine boards in particular, as it is softer than the later oak floors.  You can see the tunnels that the larvae of the Common Furniture Beetle (woodworm) have munched.  They wouldn’t have been visible at first but over the years with tens of thousands of feet walking over the floorboards the top layer of the wood has been worn away to reveal the tunnels.  Not all the damage is historic, we have active infestations too.  Fresh holes and frass were found in the Leicester Gallery just last week.

The tunnelling damage caused by woodworm in the Reynolds Room, 19th century oak boards.

95,000 pairs of feet walked over Knole’s floors last year, and over for 4000 visitors came over the Easter weekend this year.  Some of those feet were particularly wet and muddy thanks to April showers.  We vacuüm the floors every day before we open.  We do this to keep dust levels to a minimum, but also in adverse weather much more mud, grit and stones are brought in by visitor’s shoes.  If we don’t vacuum the mud etc up it will be trodden in to the floorboards causing dents and gauges in the wood, possibly leading to the board edges breaking up where they are already vulnerable.

Damage to the floorboards in the Leicester Gallery, the edge of the board has broken down, pine boards, probably 17th century.

Repairs to the Leicester Gallery floor. Broken edges are taken back and squared off to insert a new piece of wood. Some of the gaps in the floor where the boards have crumbled away are quite big.

Other physical damage is caused by different types of shoes.  Stiletto heels in particular are the worst offenders.  They leave pit marks in the floor, and will break down a weak part of the board, or even get stuck in one of the cracks between the boards.  We wax the floors regularly to give the top surface some protection against the repeated wear and tear.  In the open season we spend most of cleaning time in the mornings before we open caring for the floors.

Pit marks in the China Closet floor caused by stiletto heels.

We could protect the floor with the use of drugget carpets, but then we wouldn’t be presenting the rooms at Knole as they were historically.   However some of floors had some protection in the past.  We have evidence in our archives that show the Cartoon Gallery had rush matting, and a small fragment was found a couple of years ago by our PHD students.  19th Century photographs also show three large Persian carpets in the Gallery, perhaps something we could do again.

Persian carpets in the Cartoon Gallery.

New methods of floor protection are also an possible option.  We are currently trailing an eyemat at the top of the Great Stairs.  A high resolution photograph was taken of the area and printed on to a rubber backed mat.  It holds itself to the floorboards and merges in to the real floor as if it wasn’t there.  It protects the floor from heels and mud, and it a good dust collector too!

The floorboard eyemat at the top of the Great Stairs, protecting 19th century oak boards.

So when you visit Knole, take a moment and look down at floors in each room, you’ll see that every floor is completely different from the next, beautiful in their own right and fragile too!  But before you come in make sure you’ve wiped your feet and please don’t come in your best stiletto heels, you’ll leave a mark on Knole’s floors forever!

Lucy, Melinda, Emily and Sarah

 

 

The ‘eyemats’ have arrived!!!

Monday was a very exciting day for the Conservation Team.  A few posts ago we told you about the Reynolds Room carpet being photographed to produce an eyemat version of the carpet…well on Monday it arrived!

Having a reproduction of the carpet produced will allow us to test how the heatmat we had installed will cope with being walked on by 95,000 pairs of feet each season.  From a trial carried out from winter 2011 to winter 2012 the heatmat was able to control the relative humidity levels in the room for the first time.  It was the first time this heatmat technology had been used in this situation, so now we want to see how much physical stress it can cope with.

The Reynolds Room heatmat

Melinda and Sarah assist Kevin from 'eyemat' lay our new carpet

The eyemat is 5 sections which are taped together on the back

Having the eyemat down instead of the extremely fragile and rare carpet will allow visitors to get closer to the Reynolds portraits in this room for the first time.

The eyemat is a brilliant replica, you can't really tell that it's not the actual carpet.

The detail of the eyemat is fantastic. Even the damage caused by pest insects has been replicated just as it looks on the real carpet

We’ve also had eyemats made for the floor in the China Closet and at the top of the Great Stairs.

We have been working on changing the appearance of the China Closet.  Historic photos show a fragment of tapestry on the floor.  We don’t have the original fragment any more, so instead we photographed a section of one of our other tapestries and had it produced as an eyemat instead.

China Closet floor before the tapestry eyemat goes down

Kevin from eyemat trims the edges of the 'tapestry'

Soon we'll be moving the Imari dish from the top of the Lead Stairs to sit in the China Closet, where our historic photos showed it once lived.

The floorboard eyemat at the top of the stairs is another experiment to see if it will help to protect our floorboards.  Floors in houses aren’t often paid much attention by visitors, but they are the one part of the house that suffer the most wear and tear.  The Conservation Team spend many hours throughout the open season re-waxing the floorboards, having  applied two wax layers (one by hand) during the winter clean.

Melinda and Sarah admire the new floorboard eyemat at the top of the Great Stairs

We’re really pleased with all our new eyemats.  We reckon you won’t be able to tell the difference between the eyemats and the real floorboards and the Reynolds Room carpet.  Come along and walk all over them!

Emily, Sarah, Melinda, and Lucy

Find out more about eyemats on their website:
http://www.conservation-flooring.co.uk/

Deconstruction, protection and replication

The Conservation Team haven’t been the only ones working hard in the cold this week!  Our friendly local builders, Colnets, were working in the Reynolds Room to take down the false walls they built a year ago.  They were put up to insulate the room as part of our environmental control heating trial that took place last year.  Now the trial has finished the room will be reinstated for the 2012 season, with one small difference. 

Colnets removing the last vinyl panel

Colnets begin the deconstruction of the false wall. We are reusing the wood for the protective screening in the show rooms affected during the emergency building works.

This season visitors will be able to walk right in to the room, across the carpet, to test how the heat mat (that was introduced during the trial to control the relative humidity) underneath will cope with 90,000 pairs of feet trampling over it.  Except that it won’t the real carpet you’ll be walking on, but we think you won’t be able to tell the difference.

A birds eye view of the eyemat team at work

The chaps from ‘eyemats’ were here on Thursday to photograph the Reynolds Room carpet.  They will produce a mat with an exact photograph of the carpet on it, showing every detail you would see looking at the authentic carpet.  This will be laid on top of the heat mat in the Reynolds Room in place of the genuine article.  Unlike the real thing the eyemat will withstand all our visitors’ feet walking over it.  To find out more about eyemats please visit their website, http://www.conservation-flooring.co.uk/

Lining up the shot

Jayne and Rosamund, textile conservators from the National Trust’s Textile Studio in Norfolk, were at Knole on Monday and Tuesday to take down and roll three of the tapestries in the Spangled Bedroom. 

The Conservation Team lend a hand to get the tapestry safely off the wall.

They have come down in order to protect them during the building work.  To find out more about the tapestries click on this link: http://www.nationaltrustcollections.org.uk/object/130082.2.

Lisa, Melinda, Lucy, Sarah and Emily

Another busy week…

First thing Monday morning we rolled the Reynolds Room carpet and removed it to the Great Hall ready to be photographed.  We are having a replica ‘eyemat’ of the carpet made so that this season visitors will have more access in to the Reynolds Room, but they will walk on the replica not the orignal carpet, which will go in to store for the year.

Rolling the Reynolds Room carpet, an early 17th century Indian carpet, possibly acquired by the 6th Earl from one of the Royal Palaces. Underneath the carpet you can see the heat mat that we were trialing during last year to see if we could control the relative humidity in the room.

Once we had unrolled the carpet on top of a sheet of Tyvek we cleaned it and covered it with more Tyvek to keep the dust off of it.  Once it has been photographed at the beginning of next month we’ll roll it up again so it can be carried up to the store room.

Melinda, Lucy and Lisa cleaning the carpet

A birds eye view!

Covering the carpet with Tyvek to protect it from dust

The rest of the week has been spent cleaning the Billiard Room, Leicester Gallery and Venetian Ambassador’s Bedroom.  A part of this stage of the winter clean involves dusting the picture frames.  As we clean the frames we thoroughly inspect them and the paintings to update their condition report forms.  We use soft pony hair brushes to remove the dust from the fragile gilded frames and direct the dust into the nozzle of the vacuüm as we go, so we are removing the dust and not just displacing it.  The surface of the paintings are not cleaned but we do remove any cobwebs or clumpy dust particles using and a softer goat hair brush.

A painting from the Leicester Gallery, the canvas is in very poor condition. It has missing areas of paint and is mouldy

Our most challenging task this week was to carry a Lely portrait of Barbara Villiers, Duchess of Cleveland down to the Hall.  She has joined a Van Dyck portrait of the Italian artist Sophonisba Anguisciola.  They have moved to Hall, which is environmentally controlled, to acclimatise before leaving Knole to go on loan for exhibitions.

Moving Barbara Villiers to the Great Hall to acclimatise before going on loan

Van Dyck portriat of the Italian artist Sophonisba Anguisciola also acclimatising in the Hall before going away on loan

Emily, Lucy, Sarah, Melinda and Lisa.

How many people does it take to roll a carpet…?

Well…it depends on the size of the carpet!  If it is a carpet the size of the one we have in the Ballroom, then 6 people to roll it and 7 to unroll it!  It took us a whole day to complete the mammoth task.

One big carpet!

Why did we roll the carpet?

The carpet and woollen underlay have suffered from a pest insect infestation.  The larvae of the Webbing Clothes moth and Case-Bearing Clothes moth, as well as the Varied Carpet Beetle and Brown Carpet Beetle have been feasting on the underlay and the carpet.  We have been monitoring the infestation for a few years now, and this year has been one of the worst for the amount of moths we have caught on monitoring traps.

Before we rolled the carpet we had to carry out its annual clean

Until we can environmentally control the room with heat to bring down and maintain the levels of relative humidity to under 65%, we will not be able to eradicate the infestation.  So in attempt to discourage the moths and beetle larvae and provide them with less food we decided to replace the organic underlay with a synthetic one, that we hope the insects will not want to eat, as it was probably the underlay they were enjoying the most.

Our longest roller (a drain pipe) wasn't quite long enough for the width of this carpet, so we extended it either end with some bubble wrap.

Ready to roll!

Nearly there

We hope that this time next year we will see a decrease in the moth and beetle population.  Keep your fingers crossed!

After the old underlay was cut up and removed we thoroughly vacuumed the floorboards, especially between all the cracks where larvae and adult insects could be living.

Pouring desiccant dust between the floorboard cracks to kill anything living down there

The new underlay

Unrolling the carpet, we needed 2 people to stand on the unrolled end so we didn't pull the underlay along as we unrolled the carpet

Thanks to Jonathan, Marisha, Clare, and volunteers Carol, Tom, Carolyn, and Andra for you help.  We literally couldn’t have done it without you!

Emily