Installation Guide

Perimeter edge strip

• Ensure the perimeter walls are dry and dust free.

• Remove the protective backing from the self-adhesive strip on the reverse of the Fine E-Strip and install around the perimeter of the room with the bottom 60mm flange sitting on the floor. 

See image 001

• For your convenience, the direction of installation is printed on the E-Strip, please ensure that this is installed with the arrow pointing upwards.

• In the corners of the room, mitre the bottom and top flange to allow them to fold in at an angle to suit the corner of the room, this will mean that the edge strip does not overlap each other.  

See image 002

Doorways

Ensure E-Strip goes under all door frames to eliminate the risk of acoustic flanking.

See image 003

Thresholds

At the threshold between apartments and communal areas or stairwells, fix a timber batten across the door opening to act as a “stop” and stick the E-Strip to it. Trim off excess strip with a sharp knife. See image 004

 Internal Partitions

Should partitions be built off the sub-floor, install the E-Strip to the partition, overlap the HD10+ and seal all joints and gaps with J-Strip.

See image 005

Installation of HD10+ for sand & cement screed

Ensuring a 40mm (min) overlap, install the HD10+ over the bottom flange of the perimeter edge strip with writing and diagrams facing upwards and seal the joint with the J-Strip provided.

See image 006 & 007 & below

Continue to roll out the HD10+ across the floor cutting where required with a utility knife. Where two joints of the HD10+ meet, overlap the resilient layer by 150mm (min) and seal with J-Strip to alleviate the risk of screed migration. See image 008 & below

Installation of HD10+ for flow screed

If installing a proprietary free flowing screed, HD10+ rolls can be tightly butted together and the joint sealed with J-Strip. Care should be taken to ensure there are no gaps in the resilient layer. In this scenario it is strongly advised that you cover the HD10+ with a minimum 500-gauge polythene sheet, taping all joints and lapping around the perimeter by 150mm. See Image 005

Soil Pipes and Services

Soil pipes and services that penetrate through the HD10+ must be isolated from the screed. Carefully wrap the penetration in E-Strip and seal the joint using the J-Strip provided.

See image 009

Services running across the floor should be secured to the slab with straps and covered with HD10+. Alternatively, they can be laid over the HD10+ and held in place using J-Strip until the screed is installed. It is imperative that any services installed on the HD10+ are not fixed through to the slab.

See image 010

• All services that penetrate the HD10+ must be isolated following the instructions above for Soil Pipes.

 Thermal Void Former

• Should a layer of thermal insulation be required to meet the thermal requirements of Part L or to act as a void former, Cellecta recommends that this is installed directly on the slab, with HD10+ installed above the thermal board. This will ensure that the E-Strip detail around the perimeter can be followed and minimise the risk of flanking transmission.

Lay screed

Once the HD10+ installation is complete and all walls, services and thresholds are isolated to ensure no flanking path for sound, install the screed in accordance with the manufacturers instructions and allow to cure

Maintain floor treatment isolation.

• The top of the E-Strip can now be folded down and taped to the screed so that dry lining can take place. Ensure that all wall treatments, including plasterboard, trowel applied plaster, drywall adhesive and skirting boards are sat on the E-Strip and not in contact with the screed.

• Once the wall treatment is fully installed, trim back any excess E-Strip to allow for the floor finish to be installed.

 Underfloor Heating Systems

• If utilising a wet underfloor heating system embedded in the screed, then the HD10+ can be tightly butt jointed and taped using J-Strip . In this scenario it is strongly advised that you cover the HD10+ with a minimum 500-gauge polythene sheet, taping all joints and lapping around the perimeter by 150mm. Then  install the thermal insulation such as HEXATHERM XFLOOR to secure the underfloor heating pipes to.

• Care must be taken to ensure the clips holding the underfloor heating system DO NOT penetrate the HD10+.

• If installing an electric underfloor heating mat, or you have any questions regarding any aspect of the installation methods please contact our technical department.

TOP TIP

The adhesive grab of the J-Strip can be affected   by temperatures below 5°C, keep the J-Strip somewhere warmer before use.