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Don & Low RoofTX Optima - Roofing Underlay

Verified by manufacturer 12 days ago

Don & Low Ltd (Nonwovens) Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • EPD

    EPD

    Certificate type

Low resistance vapour permeable air barrier roofing underlay.

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BOS
+44 (0)1307 452200 Website

Application

Pitched roofing underlay applications.

Description

Daltex® RoofTX® Optima is a low resistance vapour permeable air barrier roofing underlay. It is durable, flexible and lightweight allowing for easy installation, and offers temporary protection against wind driven rain, snow and dust. 


Features and benefits:

  • Conforms to the Construction Products Regulation (EU Regulation No. 305/2011), Underlay for discontinuous roofing (Annex ZA of EN 13859-1) and is manufactured under control of an ISO 9001 quality management system. 
  • BBA certified.


Rolls should be stored flat on a clean, level surface and kept under cover. Once the underlay is applied to the roof, the primary roof covering should be installed within one month. 


Method of installation:

The membrane should be installed as detailed in national building regulations and relevant agreement certification for this product. The membrane should be unrolled across the roof colour side up and draped a minimum of 150 mm onto the proprietary eaves carrier. The membrane should be fixed to the rafters or boarded sarking, subsequent rows should be lapped by 150 mm to shed water out and down the slope. Adjacent rolls should be lapped by 100 mm.

General information

Color

Beige

Black

Blue

Brown

Cream

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Material

Polypropylene

Length

50000 mm

Width

1500 mm

Warranty description

Other

Uniclass

Pr_25_57_10_94 Vapour-permeable sheetsPrimary

CAWS

H60/105 Clay roof tiling

H60/120 Concrete roof tiling

H61/105 Roof slating

H62/125 Roof slating

H62/105 Roof slating

H62/145 Roof slating

H64/110 Wood shingle/ shake roofing

H65/125 Reconstituted slate roof tiling

H65/115 Concrete roof tiling

H65/135 Ceramic slate roof tiling

H65/105 Clay roof tiling

H67/110 Metal roof tiling

H60/3 Roof tiling

H61/5 Roof slating

H62/3 Roof slating

H67/5 Metal roof tiling

H65/5 Roof tiling

H64/10 Wood shingle/ shake roofing

Specification data - Vapour-permeable sheets

Standard

To EN 13859-1.

Class (minimum)

W1.

Guidance for specification option:

To EN 1928.

Third-party certification

British Board of Agrément (BBA) certificate, UKCA approved.

Elongation

To EN 12311-1, (MD/CD): 65/70% (before aging); 35/40% (after aging).

Flexibility at low temperature

To EN 1109, No cracking at -40ºC.

Mass per unit area

To EN 1849-2, 92 g/m² (+/- 10).

Reaction to fire

To EN 11925-2, Class E, d2.

Tear resistance

To EN 12310-1, 75 N (MD); 80 N (CD).

TensileStrength

To EN 12311-1, (MD/CD): 230/125 N/50mm (before aging); 190/100 N/50mm (after aging).

Water vapour resistance

To EN ISO 12572, 0.029 m (Sd) (+/- 0.01).

Sustainability data

Contains Red List materials

No

Country of product manufacture

United Kingdom

Material

Polypropylene

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

20 %

Third party certifications

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Revit
-

1

IFC
-

1

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

Don & Low RoofTX

EPD

EPD

Air Barrier Vapour Permeable Roofing Underlays

Literature

Don & Low RoofTX Optima

Don & Low RoofTX Optima

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