DRYLINING PHENOLIC BOARD

Drylining phenolic board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It provides a level of performance that is unrivalled in the world of rigid thermoset insulation materials with a thermal conductivity of just 0.018 W/mK across all thicknesses. Manufactured with a blowing agent that has zero ODP and low GWP, it is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining. It can be plastered with either Thistle Board Finish or Thistle MultiFinish plaster. All boards are easily applicable measuring 2400mm x 1200mm. It is easy to handle and install, ideal for new build, retrofit and refurbishment. Provides internal dry lining and insulation in just one fixing operation, giving faster completion times. 

PHENOLIC PLASTERBOARD MANUFACTURERS

Depending on the design, you can choose from various brands. All of the brands offer a variety of thicknesses. Kingspan Kooltherm K118 and its alternative Unilin Safe-R SR/TB insulated boards are the most effective type of rigid phenolic insulation boards currently available in the UK.

PRODUCTS 

Kingspan Kooltherm K118 Insulated Plasterboard  

Unilin Safe-R SR/TB Thermal Liner 

Unilin Safe-R SR/TB-MF Thermal Liner 

FOAM BACKED PLASTERBOARD BUILDING REGULATIONS

Building Regulations are law and must be met when applied to any project over a certain size. Where 50 percent or more of the internal wall is being renovated building regulations would normally apply, and the thermal insulation of the wall would have to meet the standards required by building regulations approved documents. The regulation that refers to the thermal efficiency requirements when carrying out renovation or replacement work on an existing dwelling is explained in Approved Document L1B (ADL1B). For instance, to meet Part L when constructing an extension you need to meet a U-value of 0.28W/m2K. When new layers are added to a thermal element through being dry lined internally the U-value of 0.30W/m2K is required. If at least 50% of the element is being renovated then it should be upgraded to achieve the U-values as follow:

• Pitched roof - insulation at ceiling level 0.16W/m2K.
• Flat roof or roof with integral insulation 0.18W/m2K.
• Pitched roof - insulation between rafters 0.18W/m2K.

KINGSPAN K118 INSTALLATION

Installing Kingspan Kooltherm® K118 Insulated Plasterboard on Knauf Plasterboard Adhesive Dabs should only be used on dry, clean and relatively flat brick, block or concrete substrates. The guidance below should be followed when installing Kingspan Kooltherm® K118 Insulated Plasterboard with Knauf Plasterboard Adhesive Dabs.

• Services may be contained within the depth of the dab provided (10 – 25mm) however, where there is inadequate space to incorporate these services behind the Insulated Dry–Lining, minimum chasing of the background may be required. Alternatively services should be relocated onto an internal wall or onto the new wall lining surface of Kingspan Kooltherm® K118 Insulated Plasterboard.
• Drywall adhesive should only be used when the substrate does not exceed 15mm in either vertical or horizontal direction. Use a straight edge to determine the gap.
• If the wall tolerances exceed this, a framing system solution should be used instead i.e. metal wall liner, timber battens or independent metal or timber framework.
• Projecting window boards, dado rails, mouldings etc. will need to be removed along with wallpaper and gloss paint in order to provide a key for the adhesive.
• Substrate key or suction can be improved or controlled by the application of a bonding agent such as PVAC conforming to BS 5270-1: 1989. Where required this should be applied in bands corresponding to the adhesive layout onto the substrate.
• When setting out, use a 10mm thick packer or shim and a small offcut of Kingspan Kooltherm® K118 Insulated Plasterboard, place both onto the highest point of the wall, then use a straight edge and spirit level. Once plumb, draw a short line across the floor and ceiling.
• Extend the lines on the floor and ceiling to the corners of the room by either, snapping a chalk line from one end of the wall to the other or alternatively using a laser level.
• The chalk line or laser line will indicate where the front edge of the board will follow.
• These lines are used as a guide when pressing Kingspan Kooltherm® K118 Insulated Plasterboard into place.
• Set out vertical lines at 1200mm centres onto the masonry to indicate board positioning, marking out any doorway or window openings.
• When ready, apply a continuous band of drywall adhesive around the perimeter of the wall, around openings and around all services. This is to provide support for the board edges.
• Each drywall adhesive dab should be 50 – 75mm wide and approximately 250mm long, positioned vertically at 300 mm centres and horizontally at 600mm centres (the adhesive should cover 20 % (min.) of the board area).
• Kingspan Kooltherm® K118 Insulated Plasterboard should be cut approximately 15mm short of the floor to ceiling height when adhering the board into position.
• Working from the bottom up, the boards should be positioned on plasterboard packing strips or shims, tapped into position and gently lifted using a foot lifter until the board is tight against the ceiling. Additional packing strips may be inserted at the base to wedge the board in place.
• All adhesive types should be applied approximately 25mm in from the edge of the boards to avoid bridging the joint.
• Once the adhesive has set (consult manufacturers guidance, this generally takes between 1.5 and 3.5 hours), add a minimum of two appropriate fixings per board (when using Knauf plasterboard adhesive).
• Fixings should be added 15mm in from the tapered edge so that they are covered when the boards are jointed or skimmed.
• Select fixings of a sufficient length to give a 25mm (min.) penetration into the masonry (unless otherwise stated by the fixing manufacturer).
• Drive each plug in until the head is slightly below the plasterboard without fracturing it.
• Further boards should be installed and lightly butted together to complete the lining.
• Upon completion of the Kingspan Kooltherm® K118 Insulated Plasterboard installation, seal the perimeter of the board and fill the 15mm clearance gap at the bottom of the wall to provide an airtight seal.

KINGSPAN KOOLTHERM K118 PRICE

Because Kingspan Plasterboard can be used in so many different situations, it is important to know you’re getting the best price, particularly if you’re working within a tight budget. If you are looking for the plaster-boarding cost per m2 or single sheet K118 just call 02081910776 or use the live chat in the bottom right-hand corner. Here at  InsulationGo  we offer Top Brands such as Kingspan. We usually keep in stock our most favourite Kingspan K118 in 50mm thickness. If you require a K118 thickness that is not on the website please call our sales team who will be happy to help.

Video credit:https://www.youtube.com/watch?v=MFavk3yvQ_0&t=55s