IMPERDAN FP 3 MM AP.

About this product

IMPERDAN FP 3 MM AP is a waterproofing bituminous sheet with sanded finishing, 3 mm thickness. Composed of a non-woven polyester felt reinforcement and covered on both sides with polymer modified bitumen (pliability -5ºC) mastic. Membrane with an upper surface finish of sand and a lower surface finish of polyethylene film. Tested according to standard EN test methods.

Substrate should be dry and clean from grease, dirt, debris or any other contaminants.

Where applicable, prime surface with BITUMEN PRIMER or BITUMEN PRIMER+ in accordance with DANOSA instructions and allow to dry.

For field applications:

Roll the membrane into position, allowing for 80mm side overlaps and100mm head overlaps and cut to length. All overlaps and cross joints should be staggered by a minimum of 300mm.

Using a length of 100mm ø pipe (cut fractionally short of roll width) as an insert tube, roll back the membrane for a portion of the length (approximately 50%).

Heat activate the membrane by torching in a vee area between the roll and substrate.

Roll can be pushed forward by foot or by other suitable equipment. Apply downwards pressure when moving the roll to extrude a molten bead of bitumen from edges.

For detail applications:

Place the membrane into position, allowing for 80mm side overlaps and100mm head overlaps and cut to length ensuring all overlaps and cross joints are staggered by a minimum of 300mm.

Heat activate the membrane by torching between the membrane and substrate.

Apply pressure and consolidate the bond to the substrate, ensuring a molten bead of bitumen is extruded from the edges.

Where falls apply, membrane rolls should be rolled up the slope so that water drains over and not into membrane overlaps