Flat roof ventilation should be accomplished when you have equal amounts of air exhaust with air intake.
Flat roof breather vent installation.
Today the majority of flat roof con structions are carried out as unven tilated flat roof without a ventilation level for thermal insulation.
It has been common practice in recent years to install breather vents in an attempt to remove moisture from wet insulation.
Having both will enable the cavity to breathe with cross ventilation.
The installation of breather vents in the waterproofing layers of the roof allows this trapped moisture to escape thus alleviating the problems caused by 1 blisters in the asphalt or felt roof covering.
Ventilated flat roof ventilated flat roofs two part cold roofs provide a functional roof.
In order to avoid a steam bubble with mois ture trapped inside breather vents are used.
They work with multi layer and three layer roofing systems helping to reduce the build up of moisture.
A simple identification feature distinguishes the one way vent from the two way breather allowing for roof inspections to be completed quickly and thoroughly.
They operate with a billow that opens and closes according to the moisture content within the attic area.
The breather vent allows for this moisture to escape while eliminating any moisture from entering.
The conical shape and wide base opening allows for greater performance than standard cylindrical designed vents allows for easier installation and a better performing flashing detail.
They are suitable for use with almost all single ply and multi layer flat roof systems and provide essential airflow between the flat roof structure to reduce the build up of condensation and other forms of moisture which can occur in unventilated flat roofs.
Such vents usually consist of vertical pipes or stacks open to the outside air shielded from the rain by a cover and penetrating the roofing membrane to provide a path for moisture to reach the outside.
Our flat roof breather vents are specifically designed as a means of ventilating insulated cold deck roof designs.
2 expansion and contraction stress on the weathering membrane.
Klober breather vents can be installed in both cold and warm flat roofs if needed and their design enables them to ventilate between the layers.
Another common flat roof vent is the mushroom vent.
3 mushroom roof vent.