Brick Slip systems

Brick Slip External Wall Insulation Systems

Brick slip external wall insulation systems are widely used across retrofit and new‑build projects, combining high‑performance insulation with the appearance of traditional brickwork. Thin brick slips are applied over EPS or mineral wool insulation boards, creating a lightweight, durable and visually authentic façade that replicates full brick construction while significantly improving thermal performance.

In many areas of Northampton, brick slip EWI is chosen to retain the visual character of older solid‑wall homes while meeting modern energy‑efficiency requirements.

What Are Brick Slip Systems?

Brick slips are thin sections of real or manufactured brick, typically 15–25 mm thick, fixed to an insulated substrate. When installed as part of an EWI system, they are applied over a reinforced basecoat, producing a weather‑resistant façade that is visually indistinguishable from traditional brickwork.

Across Northamptonshire, brick slip finishes are used on both heritage properties and contemporary developments, thanks to their wide range of colours, textures and bond patterns.

Key Advantages of Brick Slip EWI Systems

• Authentic appearance that replicates traditional brickwork

• Lightweight construction suitable for retrofit and solid‑wall homes

• Significant reduction in heat loss when combined with EWI

• High durability against frost, impact and weather exposure

• Minimal maintenance compared to painted or rendered finishes

• Wide choice of colours, textures and bond patterns

• Compliance with UK thermal and fire‑safety requirements when installed as a certified system

Where Brick Slip Systems Are Used

• Residential retrofits, especially older solid‑wall homes in Northampton

• New‑build housing developments across Northamptonshire

• Commercial buildings and public facilities

• Heritage and conservation projects

• Urban areas where planning requirements favour brick façades

System Build‑Up

A typical brick slip EWI system includes:

• EPS or mineral wool insulation boards

• Mechanical fixings

• Reinforced basecoat with embedded mesh

• Adhesive layer

• Brick slips installed in the chosen bond pattern

• Mortar pointing to replicate full brickwork

Correct detailing at openings, corners and junctions is essential for long‑term performance.

Compatible Insulation Types

EPS — lightweight, cost‑effective and suitable for most domestic properties
Mineral Wool — non‑combustible and breathable, often specified for higher‑risk or older buildings

Insulation type is selected based on substrate condition, fire‑performance requirements and moisture behaviour.

Installed Using Certified Systems

Brick slip finishes are installed as part of complete, certified external wall insulation systems from recognised UK manufacturers. Full system installation ensures component compatibility, correct detailing and reliable long‑term performance.

Installation and Compliance

All brick slip EWI installations are carried out by trained installers and monitored through UKAS‑accredited certification schemes. Work is completed in accordance with PAS 2030 and manufacturer specifications to ensure correct system build‑up, detailing and workmanship.

Suitable Building Types

• Private houses

• Solid‑wall terraces

• Larger residential blocks

• Selected commercial properties

Frequently Asked Questions

How long do brick slip systems last?
When installed as part of a certified system, brick slip finishes are designed to provide long-term durability, typically lasting several decades.

Are brick slips real bricks?
Yes — they are cut from genuine clay bricks or manufactured to replicate them.

Can brick slips be used on older houses?
Yes — they are widely used in retrofit projects to maintain a traditional appearance.

Do brick slip systems require special maintenance?
No — occasional cleaning is usually sufficient.

Are brick slips suitable for the UK climate?
Yes. When installed as part of a certified EWI system, brick slip finishes are resistant to frost, rain and UV exposure