Making of Parquetry - Course: Timberwork techniques. Instruction examples for practical vocational training (Institut für Berufliche Entwicklung, 24 p.): Instruction Example 7.2.: Laying of Mosaic Parquetry

Making of Parquetry - Course: Timberwork techniques. Instruction examples for practical vocational training (Institut für Berufliche Entwicklung, 24 p.)

		(introduction...)
		Preliminary Remarks
		Instruction Example 7.1.: Determining the Material Requirement of Single Parts of Parquetry for a Given Room
		Instruction Example 7.2.: Laying of Mosaic Parquetry
		Instruction Example 7.3.: Laying of Parquetry - Technique: pasted on solid ceiling, belt or ship’s bottom pattern, parquetry-fillet with fixed tongue
		Instruction Example 7.4.: Laying of Parquetry - Technique: nailed on planed boarded floor, belt or ship’s bottom pattern, parquetry-fillets with movable tongues
		Instruction Example 7.5.: Finishing and Sealing of Parquetry

Instruction Example 7.2.: Laying of Mosaic Parquetry

Technique: pasted on solid ceiling

Practising of mosaic parquetry laying

Material

Mosaic parquetry-fillets, parquetry adhesive, adhesive thinner

Figure

Tools

Hand saw, hammer, plane, broom, pushing and drawing scrapers

Measuring and testing means

Try square, flat square, folding rule, pencil, water-level, pipe-level

Auxiliary accessories

Bucket, string, steel bolts, knee pad

Required basic knowledge

Scribing, sawing, adhesive processing, laying of building components along a string, jointing

Explanations to the working drawing

1 subfloor, 2 adhesive bed, 3 mosaic parquetry, 4 string, 5 distance to the wall, 6 steel bolt, 7 1st laying direction, 8 2nd laying direction

Sequence of operations	Comments
1. Checking the subfloor for strength, moisture content and horizontal surface.	Subfloor must be free of cracks, firm, retain a constant volume and be dry. The horizontal surface has to be checked with the help of a pipe-level, straight-edge or water-level.
2. Taking small parquetry-fillets, as many as required (vis. instruction example 1), and transporting them to the place of use,	Faulty fillets are sorted out, processing losses have to be considered.
3. Drawing off adhesive and thinner and transporting them to the place of use.	Attention! Pay attention to the instructions of the manufacturer - often toxical or injurious to health.
4. Preparing tools and auxiliary accessories and arranging the working place.	Make sure that the equipment is complete.
5. Cleaning the subfloor with broom, if necessary with pushing scraper; removing the dirt.
6. Preparing primary coat and spreading it.	Primary coat is made from thinned adhesive and is applied by sectors, evenly and over the entire surface of each sector by a drawing scraper. Observe regulations on health protection: Knee-pad, risk of splashing in the eyes, of acid skin bum, of poisonous and sometimes inflammable vapours.
7. Distributing the small parquetry-fillets and putting up a string for alignment. (Vis. working drawing)	Pay attention to the angles and to parallelism.
8. Spreading the adhesive with the drawing scraper and putting the small parquetry-fillets on the adhesive coat by sectors. Pressing the fillets on firmly and accurately along the string and fixing them by slight hammer blows.	When laying the fillets, observe the intended pattern. Be absolutely accurate along the alignment string. Replace faulty fillets, consider colour and grain deviations.
9. Cleaning the working place.	Remove replaced fillets etc., clean the tools, close vessels and take all this out of the room. Let the parquetry set for at least 2 days.

Mosaic parquetry-fillets