THE PROCESS Step 1 - PRIMING THE DECK The deck is prepared and primed with a primer that will make the membrane adhere to the concrete Step 2 – CONDITIONING THE DECK Before the membrane can be applied, the deck needs to be heated in order to evacuate all water and humidity. Using huge hot air blowers that condition the surface at 130oC, to improve the adherence of membranes compare to the traditional hand-torching method. Step 3 – HEATING THE MEMBRANE A burner constantly and consistently heats the membrane in order to liquefy the bitumen. The liquid bitumen fills all imperfections in the deck such as holes and cracks Step 4 – APPLYING PRESSURE Once the membrane is applied, flattening rollers guarantee consistent and complete contact with the surface of the deck. This additional step that cannot be taken when using a hand torch enables the membrane to adhere properly everywhere Step 5 – OBTAINING A CONSISTANT BEAD A bitumen bead indicating a watertight seal can be seen after the Macaden has finished processing the membrane. The long 200 m rolls also avoid a lot of unnecessary joints. Step 6 – APPLYING ASPHALT Once the membrane is set, asphalt is ready to be applied to obtain a long lasting protection.