Elevated etfe cushion is simplified as a rectangular opening on the roof in the calculation model.
Using cushion on roof.
Class c is the lowest class of non fragile assembly and particularly if engineered to pass the test criteria may be close to the boundary between fragile and non fragile.
Of course cushion and cable net systems remain your best choice for large clear span and more fluid shapes but for traditional roof shapes using traditional support systems texo gives you all the advantages of etfe but without the risks associated with fabric welds and inflation systems and for a much lower cost.
The spaces inbetween are inflated with air.
They can also be used as cushion seals for polycarbonate roofing panels.
This system could generate electricity for system use and provide a way of collecting thermal energy as air inside etfe cushion roof could be heated.
Class c is the lowest class of non fragile assembly and particularly if engineered to pass the test criteria may be close to the boundary between fragile and non fragile.
The cushion roof system requires a constant supply of pressurised air that is distributed by an inflation unit.
In this roofing video bob schmidt shows you how to use the foam padding from a sofa cushion to say secure and not fall while doing roof repairs.
The inflation unit is connected to a through a large plenum pipe that is secured around the perimeter edge of the cushion roof.
Clever environmental design use of recyclable materials and the use of renewable energy was very important to marwell zoo and to the team at architen landrell.
An innovative product from buitink technology is the air cushion roof made of etfe foil.
Limited by the roof structure and visual requirements only some specific cushions with fixed shape and area around the competition hall can be elevated the yellow hexagons in fig.
Etfe foil cushion systems are certified as class c non fragile roof assembly in accordance with acr m 001 200 test for fragility of roofing assemblies.
Foam closure strips for metal roofing are specially formulated with unique wave designs for premium sealing of metal roofing panels.
These roofs are produced in two three or four separate layers of foil.
The area of each opening is 20 m2.
However pv high temperature could have serious effects on structural etfe foil as mechanical properties of etfe foil decrease noticeably with temperature increase 21 22 23.
This provides both insulation k values from 2 94 to 1 47 and strength.
Made of cushioning durable and water resistant foam materials metal roof foam closure strips can be easily fabricated to any custom.