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Photo of Space Combi-Roll being installed

SPACE COMBI-ROLL

Space Combi Roll is a natural glass mineral wool product with pre-cut perforations, enabling use between either 400mm or 600mm horizontal ceiling joists. It is ‘compression packed’ to minimize handling and will expand out to the required thickness when unwrapped. The 100mm Space Combi-Roll should be used between ceiling joists, while the 170mm Space Combi-Roll is for use above ceiling joists.
  • Versatile because of perforations, one product with a range of applications.
  • Pre-cut perforations, so easy to divide.
  • Correctly installed will greatly improve the thermal efficiency of your home.
  • Compression packed for easier handling.
Thickness (mm) Width x Length(mm) Area per roll (m2) R-Value (m2K/W) Thermal Conductivity (W/mK)
100 mm 1140 x 12180 13.89 2.25 0.044
170 mm 1140 x 7039 8.01 3.85 0.044

Installation Instructions

For safety, work from suitable 'crawling boards' spanning four joists. You should wear a face mask, eye protection and gloves to prevent any irritation.

STEP 1- Start from the eaves ensuring the wall plate is covered and work towards the center of the loft, placing 100mm between the joists (on top of any existing insulation in place). Butt joint where necessary.

Step 1 - illustration

STEP 2- When space along the joists is filled, the end of the roll can be turned back to start an extra layer of insulation or may be cut to size.

Step 2 - illustration

STEP 3- Layer insulation to the required thickness ensuring the ceiling beneath is completely covered except directly under the water tank.

Step 3 - illustration

STEP 4- Where the depth of previously installed insulation has reached the tops of the joists, extra heat saving is gained by 'cross layering' (at right angles to joists) with 170mm Space Combi-Roll (or 200mm for even higher energy savings).

Step 4 - illustration

STEP 5- Insulate the loft hatch, install a retaining bolt and draft seal the hatch.

VideoInstallation Video

Tanks & Pipes

Fasten loft insulation all around and on top of your cold water tank to protect from freezing. DO NOT insulate directly underneath the water tank. Wrap all water pipes to protect from frost.

Electricals

Insulation must not be laid over electric cables. Carefully, lift electrical cables above the insulation so that they do not overheat. Ensure there are no loose or disconnected wires and re-route them if necessary. Insulation should be kept at least 75mm away from recessed light fittings and hot flues to prevent them overheating.

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PDFSpace Combi-Roll Product Datasheet

PDFSpace Combi-Roll CoSSH Datasheet

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