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The Plana P 4.5mm Plain (Talc) is a high-performance, torch-applied bitumen waterproofing membrane manufactured by Polyglass (a Mapei Group company). It is specifically designed as a versatile "cap sheet" for flat roofing systems, combining durability with cost-effective application
Feature
Details
Material
APP Modified Bitumen (Plastomeric)
Reinforcement
Non-woven polyester fabric
Thickness
4.5 mm
Roll Size
8m x 1m (8 $m^2$ per roll)
Weight
Approximately 4.5 kg/$m^2$ (Total roll weight ~36kg)
Surface Finish (Top)
Plain / Talc / Sand
Surface Finish (Bottom)
Polyflam (Heat-sensitive film)
Low Temp Flexibility
Down to -10°C
Tensile Strength
MD: 700 N/50mm; TD: 500 N/50mm
Plana P is an APP (Atactic Polypropylene) modified plastomeric bitumen membrane.It features a strong non-woven polyester reinforcement that provides excellent dimensional stability and mechanical strength.The "Plain" or "Talc" version is finished with a fine talc or sand on the top surface and a Polyflam polyethylene film on the underside, which melts quickly during torching to ensure a secure, watertight bond.
Key Features & Benefits
High Strength: The polyester core offers high resistance to puncturing and tearing, making it suitable for roofs subject to minor structural movement.
APP Modification: The plastomeric compound provides superior resistance to UV aging and high-temperature stability, ensuring the membrane doesn't flow or soften excessively in summer heat.
Easy Application: Designed for torch-on installation, the Polyflam backing indicates the correct melting point, allowing for fast and reliable bonding to the underlay.
Versatility: Ideal for use as a cap sheet in multi-layer built-up systems or as a refurbishment overlay for existing asphalt or compatible bitumen roofs.
Code:
Primary Applications
Flat & Pitched Roofs: Works as the top layer in a high-quality waterproofing system.
Refurbishment: Excellent for overlaying old, worn-out bituminous surfaces.
Foundations/Tanking: Can be utilized in various damp-proofing and tanking scenarios where a torch-applied membrane is required.
Note: For a complete waterproofing system, it is typically recommended to use this in conjunction with a suitable underlay, such as Plana V2, and a bituminous primer for the substrate
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