🧱 NSAI Agrément External Wall Insulation (EWI)

External Wall Wrap & U-Value Simulator

Simulate thermal envelope improvements on Irish solid mass, hollow block, and cavity walls. Calculate your U-value progression from 2.10 down to 0.18 W/m²K and unlock up to €8,000 in SEAI wrap grants.

Visual Transformation Preview

Slide to inspect the visual contrast between a 1980s pebbledash finish and a modern NSAI Agrément external wall insulation wrap.

BEFORE: D2 Pebble-Dash
AFTER: A2 Retrofit Wrap
A2-Rated Irish House After Retrofit
1980s Irish House Before Retrofit
↔

1. Select Existing Wall Build

50mm (Retrofit Base) 120mm (Optimal) 200mm (Passive Standard)
✔ NSAI Agrément Certificate & SR54 Certified
Includes silicone breather render, mechanical fixings, and sub-sill thermal bridge details.

2. Real-Time Thermal Physics

WALL CROSS-SECTION (HEAT TRANSMISSION)
Plaster
Blockwork
120mm EPS
Render
Inside (21°C) Heat Loss Slashed by 88% Outside (0°C)
TARGET U-VALUE
0.18 W/m²K
Exceeds Part L Regs
SEAI GRANT
€6,000
0% VAT Applicable
Estimated Annual Fuel Cut: €1,450 / year
⭐ Book Survey to Audit Wall U-Values with Joe →