Polycomp Products Limited

PART 1 - INTRODUCTION

ALUBUBBLE is very effective on top of attic trapdoors, around cold water tanks and behind garage doors. The single foil bubble is especially effective under single skin roof panels.

For best results, ALUBUBBLE should be installed with an air space on both sides of the insulation.The foil must not be painted or coated and the reflective surface should be positioned between warm and cold surfaces perpendicular to the heat flow direction.

ALUBUBBLE - Flexible around any shape or surface

PART 2 - USAGE

2.1 Existing Walls

Staple the ALUBUBBLE vertically to the battens, joining on the batten. Seal the joints with foil tape and fix the outer lining.

2.2 Cavity Walls

Fix horizontally to the inner leaf of the wall with plastic retaining clips and ties set at regular spacings. The foil should face towards the cavity and allow the the joins to overlap by 150 - 200mm. Complete the outer wall.

ALUBUBBLE Equivalent to 65mm of Polystyrene with air space.

ALUBUBBLE Equivalent to 30mm of Polystyrene with no air space.

2.3 Roof Spaces

Fit horizontally to the rafters and tape seal the joints. Fit horizontally to the roof trusses beginning at the eaves and working up to the apex, allowing a 150mm overlap.

Equivalent to 55mm of Polystyrene.

2.4 Under Floors

Fit horizontally to the underside of the floor joists and tape seal the joints.

Equivalent to 120mm of Polystyrene under floors.

PART 3 - TECHNICAL CHARACTERISTICS

3.1 Construction

A laminated structure made with aluminium foil coated with an ultra-thin polyethylene to give durability and corrosion resistance without reducing the insulation properties. Coextruded polyethyelene air bubble made from six layers of PE film provides strength, rigidity for ease of use and handling and effective insulation performance.

ALUBUBBLE is CFC free, non-toxic, non-carcinogenic and does not promote the growth of fungi or bacteria.

3.2 Key Properties

Dimensions
Thickness	4mm nominal
Bubble size	4mm high x 10mm diameter
Roll width	1200mm
Roll length	25m - Area 30sq.m

Performance
Emittance	0.03 - 0.04
Reflectivity	0.96 - 0.97
Thermal resistance - air spaces both sides	0.125 m2
Vapour resistance	>20,000 MNs/g
Moisture resistance	Full barrier to liquid water
Fire rating Class	1 - BS476 Part 7
Maximum U-values	0.238 ↑
	0.082 ↓
	0.218 →

PART 4 - HANDLING & STORAGE

The rolls should be kept in the original bag and stored on end in clean dry conditions until ready for use. Keep away from naked flames or other flammable materials. Observe normal safety procedures when cutting the foil with a knife or scissors. No special breathing apparatus is necessary as the foil is clean and free from dust or fibre particles.