Walls
Issues to ConsiderIssues to Consider - Masonry
Partial Fill Cavity Wall Insulation
Insulated Dry-Lining Plasterboard
Insulated Dry-Lining Plasterboard
Issues to Consider - Timber Frame
Timber Frame Insulation
  Walls - Insulated Dry-Lining Plasterboard

Plaster Dab Bonding to Brick, Block and Concrete Masonry Cavity Walls

INTRODUCTION
For internal dry–lining applications, we recommend the use of Kingspan Kooltherm K17 Insulated Dry-lining Board, an insulated plasterboard laminate ideal for use in plaster dab bonded dry–lining applications. It is suitable for use with some solid walls and all cavity masonry wall constructions as well as timber frame walls. The boards are as easy to handle as standard plasterboard and are fixed using similar methods.

This method of wall insulation combines insulation, dry–lining and vapour control in one board.

Figure 1
Insulated Dry-Lining Plasterboard
Premium Performance
PRODUCT DATA
 ACHIEVING U–VALUES
Product Data
U-Values
1 U–values calculated assuming a Brick/Block or concrete masonry cavity wall. For the purposes of these calculations the standard of workmanship has been assumed good and therefore the correction factor for air gaps ignored.

2 U–values calculated assuming a render finished dense block, cavity, dense block wall. For the purposes of these calculations the standard of workmanship has been assumed good and therefore the correction factor for air gaps ignored.

3 Product thickness = insulant thickness + 12.5 mm plasterboard.

4 l–value quoted is based on the procedures for the determination of the aged values of thermal resistance and thermal conductivity, laid down by the harmonised European standard BS EN 13165, using so called 90/90 principles. Comparison with alternative products may not be appropriate unless the same procedures have been followed.
FIXING DETAILS
  • A continuous fillet of Gypsum adhesive is applied at skirting and ceiling level, as well as at openings to provide a continuous seal.


  • Apply further dabs of Gypsum adhesive in accordance with adhesive manufacturers’ specification.


  • Cut the boards to the height of the room, and place against the adhesive dabs and tap back into correct position.


  • Once plaster dabs have set, Gyproc nailable plugs are recommended to be fixed at a rate of 3 per board. Two near the top of the board and one centrally.


  • At window, door reveals and soffits, narrow widths of board should be cut to allow a plasterboard/plasterboard joint at an angle to prevent cold bridging. These should be fixed in the same way as for wall areas (see figure 2).


  • Suitable mechanical fixings should be used for internal fittings such as kitchen units, shelving etc… so that the load is applied direct to the supporting wall and not the Kingspan Kooltherm K17 Insulated Dry-lining Board.


  • When refurbishing it is important to ensure all existing decoration is removed on existing walls so that the plaster dab can form a permanent bond.


  • Cutting should be carried out using a fine toothed saw.


    • Boards may also be fixed using, adhesive bonding pads, please consult the Kingspan Insulation Technical Services Department for details.

Figure 2  
Insulated Reveal Detail  
Insulated reveal detail