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Glidevale Protect A1® - Impermeable Roofing Underlay
Glidevale Protect A1® - Impermeable Roofing Underlay

Verified 6 days ago

BPD Building Product Design Ltd

1500 mm-wide rolls

Verified 6 days ago

BPD Building Product Design Ltd

1000 mm-wide rolls

Summary
Heavy-duty type HR impermeable roofing underlay, designed for all cold and warm pitched roofs.
Heavy-duty type HR impermeable roofing underlay, designed for all cold and warm pitched roofs.
Application

The product can be used for all pitched roof constructions (tiled and slated), whether the insulation is at ceiling joist level or at rafter level.


The product can be used for all pitched roof constructions (tiled and slated), whether the insulation is at ceiling joist level or at rafter level.


Description

Protect A1® is a heavy-duty type HR roofing underlay, designed for all cold and warm pitched roofs in conjunction with the provision of ventilation at eaves and ridge. The product can be used with a well-sealed ceiling and a separate air and vapour control layer on the warm side of the insulation or where the ceiling is not well-sealed as in a re-roofing application.


Features and benefits:

  • Completely water and airtight.
  • Third generation pitched roofing underlay developed to overcome the disadvantages of traditional Type 1F felts and second generation plastic sheet materials.
  • Excellent nail tear strength and tensile strength.
  • Has ‘unrestricted’ use for wind uplift in all exposure conditions in the UK and Ireland at 345 mm batten gauge (1732 Pa) without the need for additional sealing tapes.
  • UV and heat resistant.
  • Absorbent under surface prevents condensate drip-off.
  • Embossed dark grey upper surface reduces glare and takes a chalk line marking.
  • Does not generate noise under wind loading.
  • Easy to cut, clean, light to handle and unaffected by temperature changes.
  • CE marked and BM TRADA certified. 

Protect A1® is a heavy-duty type HR roofing underlay, designed for all cold and warm pitched roofs in conjunction with the provision of ventilation at eaves and ridge. The product can be used with a well-sealed ceiling and a separate air and vapour control layer on the warm side of the insulation or where the ceiling is not well-sealed as in a re-roofing application.


Features and benefits:

  • Completely water and airtight.
  • Third generation pitched roofing underlay developed to overcome the disadvantages of traditional Type 1F felts and second generation plastic sheet materials.
  • Excellent nail tear strength and tensile strength.
  • Has ‘unrestricted’ use for wind uplift in all exposure conditions in the UK and Ireland at 345 mm batten gauge (1732 Pa) without the need for additional sealing tapes.
  • UV and heat resistant.
  • Absorbent under surface prevents condensate drip-off.
  • Embossed dark grey upper surface reduces glare and takes a chalk line marking.
  • Does not generate noise under wind loading.
  • Easy to cut, clean, light to handle and unaffected by temperature changes.
  • CE marked and BM TRADA certified. 
Product certifications
Digital objects
Color
Grey
Grey
Finish
Embossed
Embossed
Material
Polypropylene
Polypropylene
Shape
Rectangle
Rectangle
Length
30000 mm, 45000 mm
30000 mm, 45000 mm
Width
1000 mm, 1500 mm
1000 mm, 1500 mm
SKU Code
GVPROTECTA1
GVPROTECTA1

Specification

Classification data
Material
Polypropylene.
Polypropylene.
Purpose
Roofing underlay (impermeable).
Roofing underlay (impermeable).
Standard
BS EN 13859-1, BS 5250, BS 5534; NHBC STANDARDS.
BS EN 13859-1, BS 5250, BS 5534; NHBC STANDARDS.
Performance characteristics
-
-
Tensile strength (minimum)
Manufacturer's standard.
Manufacturer's standard.
Tear resistance
Manufacturer's standard.
Manufacturer's standard.
Water vapour resistance (minimum)
112 MNs/g.
112 MNs/g.
UV stabilization
Manufacturer's standard.
Manufacturer's standard.
Third-party certification
BM TRADA Certified.
BM TRADA Certified.
Form
Non-woven, spunbonded.
Non-woven, spunbonded.
Physical properties
-
-
Colour
Dark grey.
Dark grey.
Weight (minimum)
145 g/m².
145 g/m².
Dimensions
-
-
Thickness (minimum)
0.6 mm.
0.6 mm.
Width (minimum)
1500 mm.
1000 mm.
Roll length (minimum)
30 m.
45 m.

Additional properties

Class (minimum)
W1.
W1.
Wind resistance
Zones 1–5.
Zones 1–5.

Sustainability data

Contains Red List materials
No
No
Country of product manufacture
United Kingdom
United Kingdom
Material
Polypropylene
Polypropylene