DANOSA IMPERAN FP 3mm AP - 10m x 1m

• Manufactured from APP plastomeric modified bitumen for durability
• Non-woven polyester felt reinforcement provides stability and strength
• Sanded upper surface for ease of handling and bonding
• Torch-applied installation ensures strong adhesion
• Effective Air and Vapour Control Layer (AVCL) for roofs and building envelopes
• Tested to EN standards for performance reliability

• Air and Vapour Control Layer (AVCL): Ideal for regulating moisture and air movement within flat or pitched roof systems.
• Roof Build-Ups: Suitable for use beneath waterproofing membranes where a robust vapour barrier is required.
• Cold Storage Facilities: Helps maintain controlled environments by preventing vapour ingress.

Important Recommendations:

• Not suitable for use as a single-layer waterproofing system or exposed top sheet.
• Always install with a separating/protective layer (e.g. DANOFELT or DANODREN) before applying heavy protection such as paving, gravel, or soil.
• This product is part of wider waterproofing and AVCL systems. Always consult the Danosa Solutions Manual and comply with relevant regulations and standards.
• APP plastomeric bitumen membranes require higher torch input compared with SBS membranes during installation – ensure correct application methods are followed
• Apply a bituminous primer (e.g. IMPRIDAN 100) when fixing to metallic or slightly porous substrates.
• Avoid direct application of polyurethane foam; always use a separating layer such as geotextile, mortar, or polyethylene film.
• Check for potential chemical incompatibilities with existing waterproofing layers during refurbishment projects.

What is IMPERDAN FP 3MM AP used for?

It is used as an Air and Vapour Control Layer (AVCL) in roof systems, preventing vapour ingress and protecting insulation and structural elements.

Can IMPERDAN FP 3MM AP be used as a standalone waterproofing membrane?

No, it is not suitable as a single-layer waterproofing solution. It must be used as part of a multi-layer system.

Does the membrane require priming before installation?

Yes, when fixing to metallic or porous substrates, a bituminous primer such as IMPRIDAN 100 should be applied before installation.