Motivation, adaptability, integrity and trustworthiness combined with nearly 50 years of
construction experience is the description of an innovative service by Self Build Heroes,
intended to support self-builders in achieving their dream of building their own home with
military veterans. In their latest project in Marlborough, Wiltshire, consisting of a series of 5
new starter homes and detached 5-bed property, the roofs and the building envelope has
been fitted with high-performing protective membranes from the A. Proctor Group.
The block of 5 terraced starter homes has been given an extra layer of protection in the
form of Roofshield®, which has long been recognised as one of the highest performing
roofing membrane solutions, providing a pitched roof underlay, which is both air and vapour
permeable.
Matthew Burrows, Founder of Self Build Heroes explains. “ We chose Roofshield because
of its superior air permeability and breathability. Roofshield has been used successfully on
several of our projects and provides excellent robustness, versatility and protection. The ease
of use and excellent protection makes it an ideal all-in-one solution. I have always believed
that to scrimp on materials is a false economy which often results in ending up paying twice
to achieve the desired result. I confidently recommend Roofshield to my clients.”
The incorporation of Roofshield into a project can lead to savings in both labour and
material costs, due to no ventilation or vapour control layer being required. The high-performance
air permeability of Roofshield means that the roof space will have similar air
changes to that of a roof using traditional eaves/ridge ventilation.
For the detached self-build property, a key objective was airtightness and enhanced thermal
performance and so Wraptite® air-barrier from the A. Proctor Group has been used in
combination with Isotex woodcrete insulated concrete formwork blocks provided by our
joint venture partner InsulHub (UK) Ltd.
Regarding the selection of Wraptite, Matthew Burrows commented. “ We worked with the
technical team at the A. Proctor Group to create a high-performance specification across
all of the properties. Our philosophy of dependable, reliable and motivated is key to our
business and our clients. We have always been completely satisfied with the performance of
the Roofshield membrane. Having researched the qualities and properties of the Wraptite
airtight membrane we were assured of its high-performance capabilities. We expect that
the use of Wraptite in combination with the Isotex blocks will further enhance the thermal
performance and the potential energy savings for the property.”
The self-adhesive nature of Wraptite removes the additional time, cost, and equipment
which would otherwise be required in a traditional installation of an airtight membrane and
speeds up the installation.
Wraptite is the only self-adhering vapour permeable air barrier certified by the BBA.
Applied externally on the outside of the structural frame, Wraptite simplifies the process
of maintaining the envelope’s integrity, as there are fewer building services and structural
penetrations to be sealed.
The high vapour permeability of Wraptite allows the substrate beneath to dry quickly and
moisture vapour to escape, and reduces the likelihood of mould, mildew, condensation,
timber distortion and metal corrosion.

Wraptite/Roofshield - Self Build Heroes

Wraptite/Roofshield - Self Build Heroes
Brochures

Datasheets

Installation Guides

Material Properties

BIM Objects

UK Availability

Certification

Global Availability

Material Properties
Wraptite-SA
Property | Test Method | Result |
---|---|---|
Roll Size | 1.5 x 50 m | |
Thickness | Calibrated Deadweight Micrometer | 0.65 mm |
Weight | Electronic Weigh Scale | 292 g/m2 |
Application Temperature - Air & Surface Minimum | -10 C | |
Service Temperature | -40 to 80 C | |
Water Penetration - Before Ageing | EN 1928:2000 Method A | W1 Class |
Water Penetration - After Ageing | EN 1928:2000 Method A | W1 Class |
Air Permeance | EN 12114 | 0.01 m3/m2/hr @50Pa |
Water Vapour Resistance Sd | EN ISO 12572(C) | 0.039 m |
Water Vapour Transmission | BS 3177:1959 | 893 g/m2/24hr |
Peel Adhesion | EN 1939 | 5.01 N/10mm |
Tensile Strength - MD | EN 12311-1 | 417 N |
Tensile Strength - XD | EN 12311-1 | 252 N |
Tear Resistance - MD | EN 12310-1 | 412 N |
Tear Resistance - XD | EN 12310-1 | 286 N |
Dimensional Stability - MD | EN 1107-2 | 0.3 % |
Dimensional Stability - XD | EN 1107-2 | +0.1 % |
Reaction to Fire | EN 13501 - 1 | B Class |
Flexibility at Low Temperature | EN 1109 | No cracks at -40C |
BIM Objects
File | Format |
---|---|
Wraptite - BIM Object - Steel Frame | IFC |
Wraptite and Facadeshield UV - BIM Object - Steel Frame | IFC |
Wraptite - BIM Object - Steel Frame With Reflectite Tape Over Board Joints | IFC |
Wraptite - BIM Object - Steel Frame Wraptite Tape Over Board Joints | IFC |
Wraptite - BIM Object - Wraptite Tape Over Board Joints | IFC |
Wraptite - BIM Object - Ventilated Timber Frame With External Airtight Membrane Wraptite | IFC |
Wraptite - BIM Object - Ventilated Timber Frame With External Airtight Membrane And Wraptite Tape Over Board Joints | IFC |
Wraptite - BIM Object - Warm Roof Slate With Softwood Sarking | RVT |
Wraptite - BIM Object - Warm Roof Tile With Plywood Sarking | RVT |
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