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EWI-744 Insulating Lime Render

Product Overview

EWI-744 Insulating Lime Render is a dry-mix natural hydraulic lime render designed to improve the thermal performance of solid wall construction while maintaining high vapour permeability.

Formulated with NHL 2 binder, lightweight insulating aggregate and reinforcing fibres, it provides a breathable render solution that helps reduce heat loss without trapping moisture within the wall. Its lightweight structure also helps improve buildability and allows thicker applications than many traditional lime renders.

Intended Uses

EWI-744 Insulating Lime Render is intended for use on suitable internal and external backgrounds where thermal
improvement and moisture movement are both important. It is particularly suited to solid masonry and traditional wall construction, as well as breathable natural building materials such as hemp, straw and rammed earth.

Internally, it can be used as a backing coat or brought through to a finish coat before receiving a suitable fine plaster. Externally, it is used as a backing coat within a breathable render build-up and should be finished with a suitable lime topcoat and mineral-based paint where required.
It may also be applied onto suitable render carrier boards and other host surfaces with suction, although weak or friable backgrounds may need project-specific advice

HAND APPLIED
HIGHLY
BREATHABLE
λ-value:
0.095 W/mK
Approx. 1.5m² at 10mm thickness per 9kg

Data Sheets

Product Data Sheet

Safety Data Sheet

Install Video Guide

VIDEO COMING SOON

Application Conditions

Do not apply EWI-744 Insulated Lime Render when air or substrate temperatures are below 5°C, above 30°C, or where frost or snow is expected. Freshly applied material must be protected from rapid drying, direct sun, strong wind, rain and frost.

During curing, the render should be protected and kept under suitable conditions to support strength gain and reduce shrinkage. Where needed, damp hessian may be used between coats to help control curing.