Celotex PL4000 is a high performance thermal insulation board where the PIR insulation is bonded to 12.5mm tapered edge plasterboard. PL Boards compare very favourably to Kingspan K17 boards ( see table below)

PL4000 is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global warming potential (GWP).

With Celotex PL4000 you are specifying an insulation board that:
• Offers the user the ability to install both the insulation and plasterboard in one operation thus reducing installation times
• Is suitable for both direct bonding (‘dot and dab’) and mechanically fixed installation techniques
• Offers the installer maximum flexibility and installation speed due to the tapered edge plasterboard
• Provides reliable long-term energy savings for buildings
• Is suitable for both new build and refurbishment projects
• Can be easily used to upgrade to current building regulation standards
• Can be used in pitched roof, flat roof and wall applications

Product Description

Suitable for use with all cavity masonry wall constructions and some solid walls and, as well as timber frame walls. The boards are handled and fixed as with standard plaster board methods.

Product Application

Celotex PL 4000 Drylining Boards, for Plaster Dab / Adhesive Bonding

Celotex PL 4000 Range Performance insulated PIR boards laminated to plasterboard

Internal dry–lining Celotex 4000 insulated plasterboard, is an insulated wallboard laminate ideal for use in plaster dab bonded dry–lining applications.

Benefits

Premium performance rigid phenolic insulation –
thermal conductivity 0.020 - 0.022 W/mK.
Insulation, dry-lining and vapour control in one board.
Negligible smoke obscuration.
Class O / low risk fire rating.
Little encroachment of room space.
Energy saving – allows quick response heating.

Applications

Suitable for use with all cavity masonry wall constructions and some solid walls and, as well as timber frame walls. The boards are handled and fixed as with standard plaster board methods.

Celotex PL boards . Technical spec. Performance ( r value compared with K17)

What is surprising is that Celotex a cheaper board compares very favourably with Kingspan in terms of R value ( thermal resistance)

Note:
R-Value = Thermal Resistance m2.K/w.

Cutting

Cutting should be carried out either by using a fine toothed saw, or by scoring with a sharp knife, snapping the board over a straight edge and then cutting the facing on the other side.
Ensure accurate trimming to achieve close butting joints and continuity of insulation.