Further technical information such as composition and manufacture, size and weight, performance and sitework...
Composition and manufacture
Monarperm 700 is British Board of Agrément certified, no. 02/3932 and no. 03/4062.
Monarperm 700 breather membrane is manufactured for use under slates or tiles on open-rafter (unsupported) or fully-supported, pitched roofs. The underlay may be used in the following roof systems: conventional cold roof system; non-ventilated in a cold roof system; ventilated in a warm roof system; and non-ventilated in a warm roof system.
The installation of these roof systems using Monarperm 700 breather membrane provides a barrier which prevents the ingress of wind-blown rain, dust, and snow and minimises the wind load generated under wind gusts acting on slates and tiles when installed in accordance with this certificate. In addition, it offers adequate resistance to tearing during installation; remains flexible at low ambient temperatures and facilitates the control of harmful surface and interstitial condensation in the roof by allowing the safe dispersal of water vapour, when installed in accordance with this certificate.
View Sarking and breathers Product Entry