Single Bubble - Single Foil, Single Bubble - Double Foil, and Double Bubble - Double Foil

Ufoil BDA insulation is a high performance insulation material that is manufactured from recognised high performance components, comprising polyethylene bubble which has aluminium to either one face or two faces.

The bubble is manufactured from 90 grade polyethylene for the single bubble and from 180 grade polyethylene for the double bubble.

The aluminium foil used in all instances is 12 microns and this has a protective NC coating applied to it which gives the product durability and resistance to corrosion."

General Specifications	Ufoil 1bd/a; 1/bd/a-1 & 2bd/a
Fire Properties to BS476 part 7 Standard Material	Class '1'
Fire Properties to BS476 part 8 to BS476 part 7 Fire Rated	Class '0'
Water & Vapour Resistance	Water & Vapour Resistant
Dimensions Ufoil 1bd/a; 1/bd/a-1; and 2bd/a	1200mm x 25 metres
Product Specific Specifications
Single Bubble - Single Foil 4mm - Ufoil 1bd/a-1
Thermal Resistance - 0.79 (m2KW-1) Includes 25mm airspace to each face
Single Bubble - Double Foil 4mm - Ufoil 1bd/a
Thermal Resistance - 1.50 (m2KW-1) Includes 25mm airspace to each face
Double Bubble - Double Foil 8mm - Ufoil 2bd/a
Thermal Resistance - 1.58 (m2KW-1) Includes 25mm airspace to each face

Example U-Value Calculation using Ufoil 1bd/a
Material	Thickness (mm)	Thermal Conductivity (W/mK)	Thermal Reistance (m2K/W)	Pitch & Bridge
Outside surface resistance	-	-	0.040
Brick, medium wt external	102.5	0.752	0.136	Bridged by 17.2% Mortar, 102.5mm
Airspace	50	-	-
Ufoil, 1BD/A-1	4	0.005	0.790
Plywood	12	0.143	0.084
Glasswool	110	0.040	2.500	Bridged by 7.0%
Polythene, 1000 guage	-	-	-	Timber
Plasterboard	12.5	0.160	0.080
Plaster Finish	2	0.000	0.010
Inside Surface Resistance	-	-	0.130
U-Value
U-Value, Proportional Area Method: Q30 W/m2K

 

Technical References

A full list of technical references and statements of compliance with Building Regulations is published within the two British Board of Agrement Certificates issued to Ufoil BDA range of insulation materials for use within cavity wall and dry lining applications.

Ufoil products increase the thermal capacity within the given application thus reducing the U-Value (thermal transmittance). Ufoil not only offers a higher thermal resistance with its vapour resistance in excess of 500MNsg-1 this would then be considered as a vapour control layer as defined in section 1 of BS2520:1989 (1995).

Walls Installation Guide

Ufoil products increase the thermal capacity within the given application thus reducing the U-Value (thermal transmittance).

Ufoil not only offers a higher thermal resistance with its vapour resistance in excess of 500MNsg-1 this would then be considered as a vapour control layer as defined in section 1 of BS2520:1989 (1995).

Cavity Wall Installation of U-Foil

It is generally recommended that the inner leaf is to be constructed ahead of the outer leaf as this will ensure the laps are weathered to the outside. When constructing the cavity the leading leaf should be constructed to a height of approximately 1.2metre or 4 / 5 blocks above dpc level.

The secondary leaf is built up to the top-most line of wall ties. Once the leading leaf has attained adequate strength, the initial run of 1BD/A or 2BD/A is positioned over the wall ties which should be installed in accordance with BS5628-3: 1985, the wall ties assessed in accordance with DD 140-1: 1986.

The next run to be installed ensuring a minimum overlap of 75mm, this to be repeated at all horizontal joints. All vertical joints in the product should always be on line of the wall ties, ensuring a 100mm overlap i.e., 50mm either side of the wall tie, all vertical joints are to be tapped using are special foil tape.

The tape should be between 30 and 40 microns. When arriving at door and window openings our U-Foil products can be brought through the closed reveal to act as an insulating DPC.

Drylining Installation Guide & Example

The depth of the timber battens and metal furrings should comply with BS 8212 : 1995. The depth of the timber battens or metal furrings will determine the air space achieved on either side of the product.

Eg.1 Battens tanalised in accordance with BS 5268-5: 1989 (1997) are fixed either vertically or horizontally at 400mm.

Battens must always be placed at the top and bottom of the wall and around the perimeter of doors and windows.

The product is applied directly from the roll either vertically or horizontally depending on the wall height, pulled tight and stapled onto the battens at minimum 300mm centres.

The foil side of material should face the cavity.

The product to be butt-jointed onto the battens and sealed using the recommended foil faced to tape, this then enables the product to become a vapour barrier.

The plasterboard is fixed over the product and onto the battens in the usual manor.

Eg.2 Alternatively the product (foil face facing the cavity) can be retained directly against the wall by the battens at minimum 300mm centres.

The plasterboard is placed on top of the battens.

Following the above procedure as described above it is possible to fix counter battens in the usual manner.

The foil sides of the material will be facing the cavities formed by the use of the battens.

Timber / Modular

Ufoil 2BD/A-1 has been specially adapted for Timber/Modular Frame structures and will significantly improve thermal insulation reducing the U-Value (thermal transmittance) of new structures.

2BD/A-1 Timber/Modular Frame application has been specially adapted to release moisture, which may build up between the sheathing board and polyethylene bubble.

The polyethylene structure has been modified to allow any unexpected moisture to flow between the bubbles and disperse accordingly. 2BD/A-1 is applied horizontally ensuring minimum overlaps of 75mm up against the sheathing board and with the aluminium foil facing the cavity this then maximises the thermal performance of the product.

Insulation to Roof Structures - Non Vented

Ufoil BDA Insulation can be used not only for cavity walls and for dry lining applications, but can also be used in a variety of situations to give high insulation performances. Combining vapour control, *tile underlay and thermal insulation all in one product.

Key Points:

Available in Class ‘O’
Water and Vapour Resistant
Environmentally Friendly CFC & HFC Free
Ideally suited for existing Roofs, Lofts and Barns
Clean & Easy to Handle Robust, Durable & Lightweight
Rot Proof Tile Underlay

Check with NHBC/Building control for approval before purchase.

Warm Roof Installation Guide

U-Foil insulation creates a warm roof situation.

The system combines two layers of U-Foil. The inner layer acts as not only an insulation but with the combination of U-Foil having a vapour resistance in excess of 500 MNsg-1.

A vapour control layer is completed when the joints are taped.

To install correctly the bottom layer is to be fixed in position using spacer clips thus creating a 25mm air gap between the two layers of U-Foil. Form a 50mmm lap and tape the joints using 75mm foil tape.

The top layer to be pulled taught and fixed with 150mm weathered laps and secured in position with tiling battens.

The outer layer combines the insulation purposes plus a *tile underlay.

To increase the thermal capacity within the structure you can increase the 25mm air gap between the two layers of U-Foil to 50mm and introduce a separating membrane such as single layer aluminium to create two airspaces rather than one, this then enables the layers of U-Foil to achieve the maximum thermal performance.

Always check with NHBC/Building control for approval before purchase.

 

Manufacturer

Euroform Products Ltd, The Heliport, Lyncastle Road, Appleton, Warrington WA4 4SN
Tel: +44 (0) 1925 860999 Fax: +44 (0) 1925 860066 Email: sales@euroform.co.uk

Page last updated Tuesday, June 1, 2010