1 / 69

Dry lining

Dry lining. Dry lining. The Dot and Dab Method The application of plasterboard has dramatically changed over the last 10 years in the construction industry. Traditional methods of two-coat work on walls are gradually being overtaken by the system of dabbing plasterboards to walls. Dry lining.

aaralyn
Download Presentation

Dry lining

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Dry lining

  2. Dry lining • The Dot and Dab Method • The application of plasterboard has dramatically changed over the last 10 years in the construction industry. • Traditional methods of two-coat work on walls are gradually being overtaken by the system of dabbing plasterboards to walls

  3. Dry lining • The problem with the traditional methods of two-coat work has been the setting time for the wet materials that has led to a delay in the completion of the buildings. • So to speed up, construction, manufacturers designed various dry lining systems that can be installed quickly and covered with plasterboard.

  4. Dry lining • Gyproc dry liner basic system • Most widely used method to dry line masonry walls. • Main application is new-build housing sector. • Suitable for most Gyproc plasterboards and thermal laminates.

  5. Dry lining • Advantages of dabbing plasterboards to walls • Suitable to be applied to most backgrounds. • Quick to install. • Fire protection. • Speeds up drying time. • Reduces amount of mixing required. • Suitable for both new and refurbishment work.

  6. Dry lining • To meet the requirements of the industry, plastering manufactures have produced a number of specialist systems: • Thermal qualities. • Moisture resistant. • Fire. • Insulation. • Sound. .

  7. Dry lining • The most important activity when dabbing boards is setting out the vertical centre lines for application of the bonding compound

  8. Dry lining Tools and equipment required • Measuring tape. • Level. • Straight-edge. • Gauge rod. • Plumb line. • Foot lift

  9. Question • Dabs of bonding adhesive for fixing plasterboard should be no thicker than: • a 10 mm • b 15 mm • c 20 mm • d 25 mm • Answer • d 25 mm

  10. Find the high spot of wall. Transfer high spot to ceiling.

  11. Dry lining • Fixing the boards in place • Plasterboards are then tamped back to setting out lines at floor and ceiling with a straightedge ensuring a good strong bond between board and background.

  12. Add 10 mm on high spot for thickness of dab. Snap chalk lines. Transfer lines down to floor. Set out boards from internal angle Set out end of boards and centre of boards

  13. Dry lining • Previously fixed plasterboard • fit next board close tight and level • Apply continuous dabs of bonding compound to the perimeters

  14. Dry lining • Use a foot lift to place the board in position. Using a straight edge tamp the board back to the setting out lines at the floor and ceiling. • The total area of contact between bonding adhesive and the plasterboard should not be less than 20% of the plasterboard area.

  15. Dry lining • Total area of contact between bonding compound/adhesive and plasterboards should not be less than 20% of plasterboard area.

  16. Dry lining • Checking for alignment and full bonding • Tap the boards firmly using a straight-edge until it lines in with the ceiling and floor lines.

  17. Question • Name the tools and equipment for dry lining • Answer • Tools and equipment required • Measuring tape. • Level. • Straight-edge. • Gauge rod. • Plumb line. • Foot lift

  18. Question • What should be the Total area of contact between bonding compound/adhesive and plasterboards • Answer • should not be less than 20% of plasterboard area.

  19. Task 1 • 1Name three tools used for fixing plasterboard for direct bond. • 2 List two thicknesses and widths of plasterboard used in direct bond. • 3 What type of plasterboard is best for direct bond?

  20. Answers • 1 Name three tools used for fixing plasterboard for direct bond. • Any three of the following hawk, trowel, straight edge, spirit level, foot lifter, chalk line • 2 List two thicknesses and widths of plasterboard used in direct bond. • thickness: 9.5 mm and 12.5 mm, width: 900 mm and 1200 mm • 3 What type of plasterboard is best for direct bond? • The best type of plasterboard for direct bond is tapered-edged plasterboard.

  21. Dry lining • Apply dabs for the next board and continue along the wall. • At internal angles cut the board to size and place the cut edge to the angle. • At external angles apply adhesive dabs close to the angle on each side. • At windows apply a continuous line of dabs.

  22. Dry lining • Points to remember when fixing boards to walls. • Always ensure you have applied sufficient dabs in a regular pattern. • When working round services ensure a continuous fillet of adhesive is applied around the whole area.

  23. Dry lining • Ensure the background clean dry and dust free. • Always ensure a band of adhesives applied at skirting level to provide good fixing for skirting boards. • Remember the boards used may be tapered edge boards which means they will not be plastered – keep the finished surface free from adhesive.

  24. Dry lining • Knauf Joint Tape • Perforated white tape for reinforcing joints by hand or machine application

  25. Dry lining • Knauf corner tape • • Paper tape strengthened with two metallic strips, used on external angles. • • Easy to apply corner protection.

  26. Dry lining • Knauf Fibre Tape • Multi-purpose self-adhesive tape for reinforcing joints and patch repairs to plasterboard.

  27. Dry lining • Name two different types of jointing material. • setting material, air-dry material

  28. Dry lining • Knauf Joint Cement Easy Sand • A lightweight air-drying compound for bedding tapes and finishing joints by hand or machine application

  29. Dry lining • Knauf Ready Mix Lite Easy Sand • A pre-mixed light joint cement for bedding tapes and finishing joints with superior sanding characteristics for hand or machine application

  30. Task 2 • 4 Name two different types of jointing material. • 5 To produce the best results with jointing material what should you avoid within the material? • 6 Name two types of reinforcement used on plasterboard joints in direct bond. • 7 Name two types of reinforcement used on external angles in direct bond. • 8 The background for direct bond should be of what quality and why? • 9 Dabs of bonding adhesive for fixing plasterboard should be no thicker than: • a 10 mm • b 15 mm • c 20 mm • d 25 mm

  31. Answers • 4 Name two different types of jointing material. • setting material, air-dry material • 5 To produce the best results with jointing material what should you avoid within the material? • Jointing material should be mixed to a smooth paste with no lumps or set hard pieces of jointing material. • 6 Name two types of reinforcement used on plasterboard joints in direct bond. • two types of joint tape: paper tape and self-adhesive glass fibre mesh

  32. Answers • 7 Name two types of reinforcement used on external angles in direct bond. • reinforced paper corner tape, drywall metal beads • 8 The background for direct bond should be of what quality and why? • The background for direct bond should be of good quality and level, because if the adhesive used to fix the boards is too thick it will not hold the boards securely back to the background.

  33. Answers • 9 Dabs of bonding adhesive for fixing plasterboard should be no thicker than: • a 10 mm • b 15 mm • c 20 mm • d 25 mm

  34. Soundproofing Solutions to Meet New Part E Building RegulationsCustom Audio Designs now offers Sound Testing!! Call for Details.INTERNAL WALLS / PARTITIONS UNDER PART E:- • The internal wall requirement for the new Part E Regulations is 40 RwdB. • An internal wall is defined as a wall between a bedroom or room containing a W.C. and other rooms. • There is no Part E requirement for an internal wall that contains a door. • Internal walls are not subject to pre-completion testing. • With internal wall applications there is no Ctr adjusting factor required under Part

  35. Dry lining • Knauf joint tape • Pre-creased tape used to increase the resistance to cracking of flat joints and internal angles. • Knauf fibre tape • Self-adhesive glass fibre mesh tape used as an alternative to joint tape. • Knauf corner tape • Paper tape strengthened with two metallic strips, used on external angles. • Easy to apply corner protection.

  36. Dry lining • Taping and Jointing • Procedure for taping boards • Mix joint cement to correct consistency

  37. Question • What should the total area of contact between the bonding adhesive and the plasterboard be ? • Answer • The total area of contact between bonding adhesive and the plasterboard should not be less than 20% of the plasterboard area

  38. Question • Which tool is used to lift the plasterboard into position on the wall • Answer • A foot lifter is used to lift the board into position

  39. Dry lining • Apply jointing tape and cover with first coat of joint cement using broad knife or trowel feathering out each application

  40. Dry lining • Apply second coat of joint cement , when dry apply final coat and leave to dry

  41. Dry lining • Using internal trowel apply second coat to internal angles

  42. Dry lining • When the jointing material has set sanding can begin

  43. Dry lining • A pole sander being used on joints

  44. Dry lining • A example of a pole sander

  45. Dry lining • An example of a hand sander

  46. Dry lining • An example of a broad knife

  47. Task 3 • On page 232 answer question 11 • In your own word describe how to dry line a wall, and what materials you would use • Read page 185 and in your own word describe the setting out procedure • Name three types of dry lining tape • Answer • Knauf joint tape • Knauf fibre tape • Knauf corner tape

More Related