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IKO Permascreed LI
Mastic asphalt screed, designed for all seasons
The Great British weather is notoriously unpredictable, and for contractors installing roof systems it can quickly throw programmes off track. To help keep projects on schedule, specified roof screeds need to deliver reliable performance and predictable curing times in a wide range of conditions.
Designed for multiple applications, IKO Permascreed LI is a fast-setting roof screed that supports programme certainty throughout the year. When installed according to guidance, IKO Permascreed LI systems can typically be accessed within 1-2 hours, allowing follow-on work to take place without delay.
Compare this with the typical 28 days required for cementitious screeds. IKO Permascreed LI also has zero water content, which helps avoid water-related cracking associated with freeze/thaw cycles and rapid summer evaporation.
IKO Permascreed LI can reduce Global Warming Potential by up to 73.44kg per tonne and delivers up to 38% lower upfront embodied carbon. Specifying IKO Permascreed LI can help with project carbon reporting and, where recognised, contribute to post-completion assessments such as BREEAM and LEED.
For specification writing, IKO Permascreed LI is also available via NBS, allowing specifiers to reference up-to-date product information, performance criteria and sustainability credentials directly within project documentation.
IKO Permascreed LI: Key benefits for your project
- IKO Permascreed LI has zero water content, avoiding the drying and curing delays associated with traditional wet screeds.
- Suitable for refurbishment, deck surfacing and new builds.
- Enables accurate falls toward drainage outlets, accommodates complex roof geometries and service penetrations, and creates smooth transitions around upstands, thresholds and interfaces.
IKO Permascreed LI: Product information
SKU: 54200002 (Hot Charge) / 44200002 (Block)
Dimensions: Typically 10mm to 40mm in a single layer. However, it can be installed in multiple layers as necessary to achieve the desired drainage falls or surface level.
The facts, covered: Get to know IKO Permascreed LI
FAQs
What is IKO Permascreed LI?
IKO Permascreed LI is a hot applied mastic asphalt screed that cools quickly and sets faster than cementitious screeds. It delivers up to 38% lower upfront embodied carbon compared to the previous IKO Permascreed formulation. It is designed for use on flat roofs and walkways and can be installed in multiple layers to create drainage falls, level out uneven substrates and provide a stable base for the specified roof waterproofing and deck surfacing systems.
Can IKO Permascreed LI be installed in all seasons?
Yes, IKO Permascreed LI is designed for all-season installation. It can typically be accessed within 1-2 hours allowing follow on work to take place without delay. Compare this with the usual 28-day curing time of concrete screeds. This makes it suitable for projects during colder months where traditional screeds can take longer to cure. Plus, with zero water content, the system helps avoid water related cracking associated with winter freeze/thaw cycles as well as the rapid evaporation that can occur in spring and summer.
What type of roofs is IKO Permascreed LI suitable for?
IKO Permascreed LI is typically used on flat and zero fall roofs, as well as walkways.
What are the benefits of using IKO Permascreed LI compared to traditional screeds?
With zero water content, IKO Permascreed LI helps reduce total project water consumption and also delivers predictable performance without traditional wet-screed drying or curing delays. It is also suitable for a wide range of projects, enabling contractors to achieve accurate falls toward drainage outlets, accommodate complex roof geometries and service penetrations, and create smooth transitions around upstands, thresholds and interfaces.
Is IKO Permascreed LI suitable for refurbishment projects?
Yes, IKO Permascreed LI is commonly used in refurbishment projects.
Who can use IKO Permascreed LI?
IKO Permascreed LI should be installed by operatives experienced in the techniques of laying mastic asphalt or who have attended an IKO Permascreed Product Awareness Session.