Documentation in the Process of Preserving and Improving the Historic Value ... 
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rooms. We use them as ordinary drawings. They show the whole walls, ceilings and floors or, if it is a long room, sections that can be 
assembled. Our reason to use the orto-photo in combination with CAD was that it gave the best result and saved money. The method 
means that you agree about fix points marked on a photo and the photos are processed digitally to get the picture or call it an exact 
drawing. By using a computer to process this information you can also get the exact measures. 
We found that three-dimensional carved or relief decorations in regular shape had better to be manually measured and drawn by hand 
and if they are more complicated, pictured by normal photo from different angels. Something has to be left for future skilled 
carpenters to create. 
The ortho-photo cannot replace normal photo in showing pictures and pattern and structure. Nor can it give a good enough 
description of the more complicated carvings. As you see we work very pragmatically mixing technics after the needs. 
My second example is technical documentation of the attics of the royal palace in Stockholm 
Attics are very exposed to fire their constructions are normally interesting and we have found that parts are not at all documented. 
The new palace from 1697 is built to replace the old Three Crowns after a fire. Our work today is simple to explain. We do carry the 
documentation through with manual drawings scale 1:50 we work on site in the room. And with simple drawings of details. We are 
of course interested to find more effective methods if there are any. 
My third and last example is documentation of wear and tear in the Court Theatre of Drottningholm Royal Palace 
The theatre is inaugurated in 1766. It is still used as opera house during the summer period. All surfaces in the saloon are origin. 
Most of it is built in a very fragile material papier-mache. The old machinery and scenery is intact and still used as the rest of the 
rooms. That means that today we feel the same paint as the Queen Lovisa Ulrika who built the theatre and her son King Gustav III. It 
means that also the wear and tear is of historic value. For this building we therefor have added a useful investigation and 
documentation of wear and tear as complement to the care-programme with its documentation 
The wear and tear investigation is especially useful to use to convince the tenant or the user to change the use of a building just to 
save it. It will show what happens if we just go on. 
The main work was repeated in 10 years intervals: 
Observations of behaviour of employers, public, tourist groups, school classes 
Observations of TV-productions 
Interviews 
Measurements of clima, dust and dirt 
Documentation of damage by photo and measuring 
Notice of vermins or insects 
Facts has to be collected by observations and interviews and measurements: 
Documentation has to be carried out by photographing and measurements of damaged parts in intervals of ten years. The 
investigation of the court theatre of the Royal Palace in Drottningholm is to regard as a pioneer work of the architect Gosta Edberg. 
The result of the investigations of 1991 was: 
Fewer performances a year. 
Fewer number of groups visiting the theatre to avoid crowding in small passages. 
Fewer number of people in each group for the guide to get control. 
Fewer amount of television productions. 
Electrical lights of the footsteps in dark theatres. 
Information 
The result from the investigation of 1980 was: 
Fewer demonstrations for group a year. 
Reduced visiting-groups and reduced time for each group 
Higher fees 
Only guides employed by the theatre museum 
Information about the vulnerability of the theatre. 
No purchase of souvenirs in the building 
etc. 
It had not been possible to carry the necessary changes through to save the building without that investigation. Today it is ten years 
since the investigation and about seven years since the changes were carried through. We can’t see more damage. But it is necessary 
to be aware of that the human eye too often sees what it wants to see. And that it is necessary to follow what is happening in a 
systematic way if we want to have any real authenticity left.