FIDIA

The FlDlA membranes are made up of distilled bitumen, selected for industrial use, with elastomeric and plastomeric polymers added to obtain a phase inversion compound whose continuous phase is formed by polymers in which the bitumen is dis- persed, where the characteristics are
determined by the polymeric matrix and not by the bitumen even though this is the most consistent ingredient. The performance of the bitumen is therefore increased along with the durability and the resistance to high and low temperatures while the already optimum adhesive and impermeable qualities of the bitumen remain unchanged.
FlDlA POLYESTER and MINERAL FlDlA POLYESTER are reinforced with a rot-proof “non wo- ven” polyester fabric composite, stabilized
with fibreglass mat which is very strong and elastic with optimal dimensional stability in hot conditions which reduces the problems of the banana effect and the retraction of head lap joints as it is 2 to 3 times more stable than normal reinforcements in “non woven” polyester
fabric.
FlDlA/V is reinforced with rot-proof fibreglass mat which is strengthened longitudinally and has
high dimensional stabiliy properties.
The FlDlA POLYESTER and FlDlA/V membranes, produced in various thicknesses, have the upper face of the membrane coated with a uniformly distributed, fine serigraphed talc, a patented treatment which makes it possible to quickly unroll the rolls and install the membranes with the reliable and fast welding of the joints. The MINERAL versions, produced in various weights, have the upper face self-protected with hot bonded and pressed slate granules, with the exception of an overlapping side strip, protected by a strip of Flamina film which is torched to weld the joints. The underside of the membranes is coated with Flamina, a plastic film that melts when torched and which is embossed both to obtain the pre-tension and therefore the optimal retraction of the film and also to offer the torch a greater surface area for faster and more reliable installation. When the membrane is dry laid or spot bonded, the embossing diffuses the vapour.