SFTV – Thermal Vapour & Air Tightness Barrier

Tough foil membrane suitable for roofs, walls and floors

  • Roof

    R 0.95*

  • Wall

    R 1.42*

  • Floor

    R 2.8*

  • Waterproof
  • Vapour proof
  • Air tight
  • Radiant barrier
  • Helps to prevent mould & damp 
  • Includes Air Gap*
  • Enhances thermal resistance
 

SFTV – High tech foil insulation

SuperFOIL SFTV the ultimate all-round building membrane for roofs, walls and floors. Water & vapour proof SFTV is also a foil radiant barrier that will reduce solar gain in summer and improve insulation in winter. SFTV’s reflective properties add to the overall U-value of the building fabric. To achieve the maximum energy performance in new build and retrofit projects, SFTV makes an ideal ‘airtight’ layer suitable for the entire building envelope.

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Key Features

  • SuperFOIL SFTV is waterproof resists the passage of moisture through walls, floors and ceilings.
  • SuperFOIL SFTV improves the general airtightness of the building.
  • SuperFOIL SFTV is a radiant barrier and can be used to enhance U-values
    in both new build and renovation projects.
  • SuperFOIL SFTV is vapour proof and restricts the passage of warm moist air from within the building from permeating into the structure or the roof.
  • SuperFOIL SFTV is suitable for roof and wall applications.
  • SuperFOIL SFTV has a vapour resistance greater than 200 MNSG.
  • SuperFOIL SFTV has a permeability rating less than 1.0.
  • SuperFOIL SFTV helps to prevent mold and damp staining.

European Technical Approval (ETA)

The EU has proposed under ECPD 1989 OJ L106/1 a new technical standard is to be developed that will incorporate the full performance of multi layer foils under real conditions including radiant reflective properties and air seal properties. This will ultimately result in a new CE or ETA classification.

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Technical Information

SFTV

PERFORMANCE

DATA

Tensile Strength
N/50mm Lat:515 Med: 600
Tear Strength
ISO – 13972-2:1995
Reaction to fire
BS EN 13501-1:2007 Class ‘E’
Emissivity ASTM C1371-04A
0.03
Resistance to water penetration
BS 4016 Result: Pass
Resistance to water penetration
Hydrostatic Head:
 
BS En 20811:1992 (1996)
 
Result: >1000@ 60cm/m

DIMENSIONS & WEIGHTS

DATA

Width
1.5m
Length
25m / 50m
Thickness
Less than 1mm
Weight per roll
4.3kg / 8.6kg
Colour
Silver
 

SFTV 1L

PERFORMANCE

DATA

Resistance to water penetration
BS 4016 – Pass
Hydrostatic head
EN 20811 > 200cm
Water Vapour Performance
BS EN ISO 12572
Emmisivity ASTM C1371-04A
0.04
Tensile Strength
EN 12311-1 L:705 W:355
Tear resistance
EN 12310-1 L:212 W:111

DIMENSIONS & WEIGHTS

DATA

Width
1.2m
Length
20m / 40m
Total Coverage
24 / 47sqm
Weight per roll
4kg / 8kg
Colour
Reflective Silver Foil
Packing
142 Poly Tube
Dimensions packed
1.2m x 100mm
 

SFTV 1L FR

PERFORMANCE

DATA

Resistance to water penetration
BS 4016 – Pass
Hydrostatic head
EN 20811 > 200cm
Water Vapour Performance
BS EN ISO 12572
Emmisivity ASTM C1371-04A
0.04
Tensile Strength
EN 12311-1 L:705 W:355
Tear resistance
EN 12310-1 L:212 W:111

DIMENSIONS & WEIGHTS

DATA

Width
1.2m
Length
20m / 40m
Total Coverage
24 / 47sqm
Weight per roll
4kg / 8kg
Colour
Reflective Silver Foil
Packing
142 Poly Tube
Dimensions packed
1.2m x 100mm
Fire resistance
BS EN 13501-1:2007 
A1 2009 “Class E”
 

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Installation Guide

SFTV is a quick and easy way to improve airtightness in new builds, extensions and property renovations.

Installing SFUF

SFTV should be installed on the “warm” side of the insulated structure, with special care being taken to ensure that all seams and holes are sealed effectively to render the whole structure moisture vapour proof, and to improve the thermal performance.

It is important that SFTV is installed as a continuous barrier in order to prevent vapour entering the wall or the roof.
 

Fixing & Jointing

All laps should be a minimum of 150mm and be sealed using SF Jointing Tape. Particular care is required when sealing around penetrations. Where the Barrier is breached by construction elements, the aperture should be sealed with sided SuperFOIL tape.


 

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