Indoor Air Quality
Airborne fibres from some insulation are considered carcinogenic and can seriously damage health.
Low-E® Insulation has no fibres and is In-Door Air Quality Approved.
Does your insulation absorb heat and moisture?
Low-E® Insulation works differently to traditional insulation.
Local Authority Building Control Accepted
EN 16012 Tested and Compliant. 25 years of experience, testing and approvals have kept Low-E® Insulation at the forefront of the industry.
Fire Lab Tested
Low-E® Insulation is Class A/Class 1 Fire Rated and is suitable where other reflective insulation is not.
How to install
No multiple layers, no frayed edges, no dragging on screws, Low-E® will save you 50% on your install time. There is no safety equipment or protective clothing required to handle or install Low-E® Insulation. A staple gun, utility knife and a roll of Low-E® Seam Tape are the only items required for general installation.
Low-E® can be installed with either side facing out and can be nailed or screwed through to fix in place and can be installed with either side facing out. Low-E® will not drag on screws and will self-seal around any fixings that puncture it during installation.
Airspaces form an important part of the system U-value, when using Low-E® Insulation. As Low-E® Insulation is only 5.5mm thick, installing Low-E® with a 2” x 1” counter batten is an easy way to maintain an airspace. There are numerous other ways of creating airspaces when installing Low-E® Insulation. If you have an application for Low-E® Insulation and want to find a suitable way of fitting, please contact us for details.
Minimum recommended airspaces
– 13mm – Roof Application
– 16mm – Wall Application
– 18mm – Floor Application
Aluminium is an electrical conductor. Please use caution when working around electrical sources, including overhead power lines. Low-E® should be stored on a flat dry surface in its bag, out of direct sunlight, until it is ready for installation. Never interfere with the designed ventilation of the building when installing Low-E® Insulation. Although Low-E® Insulation products have an excellent fire rating, it is recommended that they should not be exposed to open flames or ignition sources of sufficient intensity during shipment, storage or installation. 50mm of clearance should be left around heat producing flues or light fittings. Install any additional insulation in accordance with the manufacturers’ guidelines. Always build in accordance with applicable standards. When using Low-E® outdoors be aware of glare from the sun; protect your eyes and skin. Aluminium surfaces should not be installed in direct contact with uncured concrete or any uncoated raw metals. Do not walk on Low-E® when it is cut before installation. If you have any concerns about condensation risk, please contact your local building control officer for advice.
4. Joining Rolls
Ensure that the area is clean and dry. Place the two pieces of Low-E® you wish to join on a clean, flat surface and butt them together. Seal the join using Low-E® Seam Tape. Turn the insulation over and repeat on the other side.
Overlap the new run of Low-E® with the run which is already in place (over the closest support batten) and start fitting the new run. Once the new run is secured, cut along the centre of the support batten where the two runs overlap and remove the waste.
Place double-sided tape on both of support battens and remove the paper backing from the double-sided tape. Put the replacement piece into place. Apply Low-E® Seam Tape to the face of the seams by firmly pressing it down on the tape while running the length of the join. Once complete, the Low-E® Seam Tape will blend in perfectly with the insulation.
Simply overlap the adjoining rolls by 50mm-100mm and seal using Low-E® Seam Tape. When you are overlapping rolls, it is important to ensure the overlap does not allow water to get into the structural space. Low-E EZ Seal: The adhesive strip that runs along one side of the roll will be used to bond to the next length. Ensure the rolls are running level with each other. Fold back the insulated tab on the edge of the of Low-E® EZ and butt it together with the tab on the next roll. Peel off the release paper and press the two insulated tabs tightly together. For best appearance and easiest installation, it is advisable to complete this approximately one at a time. Staple the seam every 200-300mm. If the EZ strip is not sticking because of moisture in the air, staple every 100 200mm and seal using Low-E® Seam Tape. To maintain Class A/ Class 1 Fire Rating, all seams that are left exposed to conditioned spaces MUST be sealed using Low-E® Seam Tape.
Low-E Seam Tape: Always tape Low-E® when surfaces are clean and dry. Low-E should be taped at junctions with walls, windows and doors. When joining or replacing sections of Low-E®, Low-E® Seam Tape should always be used. All seams that are exposed to conditioned spaces must be taped with Low-E® Seam Tape. Use a utility knife or a pair of scissors to cut the Low-E® Seam Tape. Tearing the tape may stretch it.
If it happens (and occasionally it does) that material gets damaged on site after it has been installed. Don’t worry, just cut a replacement piece of Low-E® slightly wider than the spacing between the nearest support battens. Place the replacement piece over the damaged area and cut along the centre of the two nearest support battens. Remove the excess material and the damaged piece of Low-E®. Place double-sided tape on both of support battens and remove the paper backing from the double-sided tape. Put the replacement piece into place. Apply Low-E® Seam Tape to the face of the seams by firmly pressing it down on the tape while running the length of the join. Once complete, the Low-E® Seam Tape will blend in perfectly with the insulation.
7. Roofing Installation
Low-E® Insulation can be installed above and or below rafters. It is always recommended to use Low-E® EZ (Vapour Control Layer) on the internal side of a structure and Low-E® PERF (breathable) on the external side.
Unrolling & fixing:
Roll out Low-E® either parallel or perpendicular to the rafters. Alternatively you can cut Low-E® to length and then place it on the roof. Staple Low-E® in place on the roof as you go. Always cut Low-E® 50-100mm longer than required to ensure all exposed ends of Low-E® can be folded back to stop air ingress. Make sure the material is running square with the roof. You can use double sided tape on the rafters to help hold Low-E® in place when you are starting the run. OR secure the start of the run in place using a C-clamp and a block of wood. Once the run is complete, start the next run and join the runs together as described in the ‘Joining’ section. Follow the sections for ‘Above Rafter’ and ‘Below Rafter’ on the following pages.
8. Roofing – Installation (Above Rafter)
The rafters should be counter battened, the roof membrane installed, and the roof finished to requirements and applicable standards. If a roofing deck or sarking board is being installed, you can allow Low-E® to sag between the rafters to create an airspace between Low-E® and the board. If you decide to install Low-E® on the external side of the roof and it is required by your local regulations to install a vapour barrier below the rafters (internally), you can use:
1) A second layer of Low-E®
2) A foil-backed plaster board with the joints between the boards well sealed
3) A 500-gauge polythene sheet
9. Roofing Installation (Below Rafter)
Finish Low-E® up to the ridge and join rolls using Low-E® Seam Tape.
Finish Low-E® down to the wall plate and staple securely in place.
Always ensure care is taken to stop air ingress around the edges of the roof.
Once installed, the rafters should be counter battened to create a service void and the ceiling finished as per requirements.
11. Roofing Ceiling
There are a number of ways of installing Low-E® in an attic or on a ceiling, to upgrade your insulation, stop draughting, air leakage and provide moisture protection. When installed above a secondary insulation, it is always recommended that you use Low-E® PERF, our breathable foil Insulation. This allows vapour transmission to pass through Low-E® and stops the vapour from being left behind and absorbed by a fibrous insulation.
12. Walls Installation
Low-E® can be installed internally or externally on a timber frame. It is always recommended that you use Low-E® EZ (Vapour Control Layer) on the internal side and Low-E® PERF (breathable) on the external side.
Unrolling and Fixing
Low-E® should be rolled out across the face of the wall. It can be rolled out either parallel with the floor or vertically. Alternatively you can cut Low-E® to length and then place it against the wall for fixing. Staple Low-E® in place as you move along the frame. Always cut Low-E® 50-100mm longer than required at all ends, to ensure all exposed ends of Low-E® can be folded to stop air ingress.
Make sure the material is running square with the wall. You can use double sided tape on the frame to hold Low-E® in place when you are starting the run. Or secure the start of the run in place using a C-clamp and a block of wood. Once the run is complete go back to start and roll the out the next length as before. Join runs or rolls together as described in the ‘Joining’ section.
13. Walls Installation (Junctions & Openings)
Junctions: Finish Low-E® tight up to the ceiling and down to the floor.
Inspect finished work to ensure it has been installed as airtight as possible.
Openings: Cut out carefully around doors, windows and other openings, so that it neatly abuts to the frame.
Doors and Windows: Openings can be cut out in place or the run can be stopped before the opening and started again on the other side. Ensure you leave enough material to wrap around openings and junctions to stop any air ingress. Once you have finished, inspect the finished work to ensure it has been installed as airtight as possible.