The Ruberoid
   Underslating Range
   Breather Membrane
   Warm Roof
   Cold Roof
   Installation Notes
   Rubershield-Pro

   Grafton plc
  www.buildbase.co.uk

  Builders Merchant of the Year 2006 Builders Merchant of the Year 2005
  Best Customer Service Award Winner 2004 Builders Merchant of the Year 2003

 

Buildbase Limited,
Head Office:
Gemini One, 5520 Oxford Business Park South, Cowley, Oxford, OX4 2LL

Reg. in England No. 4725313 Member of Grafton Group plc. VAT Reg. No. GB 663 3617 30 Registered Office:
Aquis Court, 31 Fishpool Street,
St Albans AL3 4RF
Meeting Your Standards

Typical uses of Rubershield-Pro Breather Membrane
Rubershield-Pro breather membrane is ideal for all types of warm and cold roof constructions. It can be used as:

  1. Roofing underlay positioned immediately above the insulation layer in a warm pitched roof below the roof finish,
    or in a cold pitched roof (ventilated or unventilated).
  2. Roofing underlay for use under tiles and sheeted roofs, over open rafters or onto fully boarded substrates.
  3. Breather membrane for timber frame wall construction or behind hanging tiles, timber boarding or cladding systems.

Other Rubershield-Pro applications

Hanging tiles

Masonry cladding

Low slope metal roofs

 
Ruberoid pitched roof protection range

RoofGuard-SB
Spun-bonded polypropylene, high performance nonbituminous underslating.

Starex
Polyester based, high performance bituminous underslating.

Zylex
Hessian reinforced, traditional bitumen underslating to BS 747 Type 1F.

Ruberoid Eaves Protection Strip

In conjunction with the underslating membrane, an eaves protection strip should be used to give lasting protection where the underslating dresses into external gutters. It can be used with any underslating material (including breather membranes), any tile or
slate finish and in cold or warm roof configurations.

Main uses

  • Used where dressing any roof underlay into an external gutter.

Rubershield Jointing Tape

When using breather membranes, Rubershield Jointing Tape is also helpful to allow the individual sheets of membrane to be sealed to each other and at detail work, improving waterproofing performance and the airtightness of the installation. A high performance double-sided self-adhesive tape, protected by a silicon release film on both sides. It is applied between the overlap and at perimeter details/roof penetration points in Rubershield-Pro and other polypropylene membranes to effectively seal the joints. Rubershield Jointing Tape can make a considerable contribution to a roof complying with Part L of Building Regulations by effectively limiting unwanted air movement and improving thermal performance.

Main uses

  • Sealing all lap joints in Rubershield-Pro breather membranes.
  • Attaching Rubershield-Pro to other surfaces (e.g. brickwork).
  • Sealing the membrane at penetration points (e.g. soil vent pipes).

 

Rubershield-Pro

RoofGuard-SB

Starex

Zylex

Ruberoid Eaves
Protection Strip

Length and width (m)

50 x 1.5
50 x 1.0

45 x 1.0
30 x 1.5

50 x 1.0

15 x 1.0

16.5 x 0.5
16 x 0.33

Warm pitched roof

-

-

-

-

Cold pitched roof
(unventilated void)

-

-

-

-

Cold pitched roof
(ventilated void)

-

Eaves protection
(dressing into
external gutter)

-

-

-

Approval/standard


BBA Cert. No. 05/4228

-

BS 747 1F

BS 747 5U

*Conforms to NHBC Technical Standards

 

 

Environmental considerations
Rubershield-Pro is manufactured from 100% polypropylene, bonded together without the use of adhesives. This allows Rubershield-Pro to be completely recyclable.

Health and Safety
A Health and Safety data sheet relating to Ruberoid underslating membranes can be downloaded from the Ruberoid web site www.ruberoid.co.uk or alternatively obtained from the Technical Services Department.

Compliance with standards
Rubershield-Pro conforms to the following requirements:

  • BS 5534: 2003 (Code of Practice for slating and tiling)
  • BS 5250: 2002 (Code of Practice for control of condensation in buildings)
  • Complies with NHBC technical requirements
  • Fully covered for all applications by a current BBA certificate.

BS 5250: 2002 defines a vapour permeable pitched roof underlay as complying with the requirements BS 5534: 2003 and being vapour permeable with a vapour resistance less
than 0.25MNs/g. Rubershield-Pro complies fully with this requirement, and is classified as an “LR” (low resistance) underlay in accordance with BS 5250: 2002, with a vapour
resistance of 0.13MNs/g.

Pitched roof build-ups usually fall into 3 primary categories: warm roofs, cold roofs (ventilated void), cold roofs (unventilated void), as detailed in British Standards BS 5534 and BS 5250.

Durability & guarantee
Rubershield-Pro is covered by BBA certificate 05/4228 which identifies that the product will be virtually unaffected by the normal conditions found in a roof space. Correctly installed, Rubershield-Pro will effectively last the design life of the slate or tiled roof into which it is incorporated. Under these circumstances the effective product guarantee will be the same as for the main tile or slate roof covering utilised.

Composition and appearance
A triple layer highly breathable weatherproof membrane, made from high tensile spun-bonded polypropylene layers around a microporous polypropylene film, bonded together by ultrasonic lamination. The outer layer forms the functional weatherproof surface, the middle layer is the breathable waterproof membrane, and the inner layer protects the membrane from abrasion and damage, also giving additional strength. This enables the fabric to allow moisture vapour to pass through, whilst providing high levels of water protection.

Rubershield-Pro has a green upper surface, printed with the trade name, “easy cut” grid pattern and head lap lines. The underside is white.

Roll width (m)

1.5

1.0

Roll length (m)

5.0

5.0

Roll area (m2)

75

50

Roll weight (kg)

12.0

8.0

Weight (g/m2)

160

160

Performance

Tensile strength
(N/50mm) to BS EN 12311: 2000

MD
TD

288
275

Elongation (%) to BS EN 12311: 2000

MD
TD

78
83

Nail tear strength (N) to BS EN 12311: 2000

MD
TD

168
185

Water vapour transmission
(g/m2/24 hrs) to BS 3177

  

>1500

Resistance to water pressure to moat 25 5.1.4 (6m/24 hours)

  

Pass

Mullen burst (kPa)

  

790

Fire rating to DIN 4102, B2

  

Pass

UV Resistance

  

4 months

Wind uplift (at 343mm batten spacing to Appendix G – Standard 90/13286

  

2.25kPa