Cromar Protectif Non Breathable Membrane – Pack of 56


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  • Suitable For: tiled and slated pitched roofs
  • Area of use: EXT
  • Volume: 15m
  • Type: membrane
  • Colour: anthracite
  • Brand: Cromar
  • Manufactuer: Cromar
  • Box Size: 56

Protectif is a non breathable under slating for tiled and slated pitched roofs.

Protectif is a high performance underlay for pitched roofs, which must be ventilated in accordance with BS 5534 2003. Install in the same manner as conventional tile and slate underlays. Protectif prevents the ingress of dust, rain and snow into the roof void. The membrane is completely waterproof and correctly installed will provide temporary protection of 4 months until application of the main roof is finished. The high performance lightweight material is clean and easy to handle, and the 45m x 1m roll size allows for easy handling. Protectif is made up of three layer construction, comprising two UV stabilised, high tensile polypropylene fabric layers fused together around an impervious film and is coloured anthracite.

ADVANTAGES

– Clean and easy to use
– Temporary cover for up to 4 months
– Lightweight
– Anthracite surface prohibits glare
– Excellent tensile strength
– UV and heat stable
– No mess
– No gusting wind noise
– 1 metre wide for easy handling
– Timesaving over bitumen based 1F
– Excellent nail tear resistance
– Completely waterproof

APPLICATION

Protectif underslating should be installed in accordance with the recommendations laid out in BS5534:2003 and B8000 Part6. Installation can be carried out in all conditions normal to roofing work. The product should be laid horizontally across the rafters, starting at the eaves. Protectif should be laid up the roof slope, draping over the rafters. Do not stretch tight – this will allow for minor temperature movements. Minimum lap size will depend on the pitch of the roof. Information is taken from BS 5534:2003.

 

For more information on Cromer, please visit their website here.

For more items from the Cromer range, please click here. For all other roofing products, please click here.

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Elementlength
up to
1,5 m
up to
2,5 m
up to
3,5 m
up to
4,5 m
up to
2,5 m
up to
3,5 m
up to
4,5 m
Type of window frame material Minimum witdth of joints
for a butled mounting b in mm
Minimum witdth of joints
for a inner mounting b in mm
Hard PVC (white) 10 15 20 25 10 10 15
Hard PVC and PMMA (dark)
(colour extruded)
15 20 25 30 10 15 20
Hard PUR integral foam 10 10 15 20 10 10 15
Wood-aluminium-window 10 10 15 20 10 10 15
Aluminium-plastic sandwich
frame (bright)
10 10 15 20 10 10 15
Aluminium-plastic sandwich
frame (dark)
10 15 20 25 10 10 15
Wooden window frame 10 10 10 10 10 10 10

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