Pitched Roofing Underlays

Areas of Application & Ventilation Requirements

Find the right pitched roofing underlay for your project. 

A number of design considerations need to be taken into account when constructing new pitched roofs or in refurbishment of existing roofs. The area of application will determine the minimum product choice from the Icopal range in terms of ventilation required or mechanical performance.

For further more detailed information regarding the selection and installation of pitched roof underlay, please consult our Design Guide.

 

Areas Of Application

Product Weight Insulation
between
rafters

Insulation
at ceiling
level

Boarded
Insulation
at ceiling
level

Wind
up-lift
resistance
Energy
efficient
 
MonarTile Protect

130g/m2

  Ventilate Eaves Ventilate Eaves Low  
MonarTile Supa-R

150g/m2

  Ventilate Eaves Ventilate Eaves High  
MonarTile 1F

1500g/m2

  Ventilate Eaves Ventilate Eaves High   
             
Monarperm 400

90g/m2

No Ventilation Ventilate Ridge   Low  
Monarperm 500

100g/m2

No Ventilation Ventilate Ridge   Low  
Monarperm 600

115g/m2

No Ventilation Ventilate Ridge   Medium  
Monarperm 700

132g/m2

No Ventilation Ventilate Ridge   Medium  
Monarperm Plus

140g/m2

No Ventilation Ventilate Ridge Ventilate Ridge Medium  
Monarperm Top

190g/m2

No Ventilation Ventilate Ridge Ventilate Ridge High   
Monarperm Top+

190g/m2

No Ventilation Ventilate Ridge Ventilate Ridge   High

Integrated
tape

High = Wind resistance up to 2.5kPa at 343mm batten spacing
Medium = Wind resistance between 1.0 – 1.5kPa at 343mm batten spacing
Low = Wind resistance between 0.5 – 1.0kPa at 343mm batten spacing

    Contact Icopal 0161 8654444

    Find Local Support

    To discuss your project in more detail please contact
    Your Local Area Manager

     

    Technical Support

    Telephone:

    0330 123 4585

    Email: technical.uk@bmigroup.com

     

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    Telephone:

    0843 224 7400

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    0843 224 7401

    Email: sales.admin@bmigroup.com

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