Restoring Old Brickwork: Tips, Tools, and Techniques

The Complete Guide to Choosing the Right Brick for Your Project

Overview

This guide helps you select the right brick by covering types, appearance, performance, cost, and installation considerations so your finished project matches style, budget, and durability needs.

Types of brick

• Clay brick: Traditional, wide color range, durable, good for load-bearing walls.
• Concrete brick: Cost-effective, uniform size, often used for facing and paving.
• Sand-lime brick: Smooth finish, pale colors, good for decorative work.
• Engineering brick: Very high strength and low water absorption, for foundations and damp-prone areas.
• Reclaimed/antique brick: Aged look, eco-friendly reuse; may need sorting for structural use.

Key selection criteria

• Purpose: Load-bearing vs. veneer vs. paving — choose structural-grade bricks for load-bearing, lighter/cheaper facing bricks for veneers.
• Strength & durability: Check compressive strength and frost resistance for exterior or foundation use.
• Water absorption: Lower absorption (≤6%) for freeze-thaw climates; higher absorption acceptable for dry areas.
• Size & modularity: Standard modular sizes simplify bonding patterns; specialty sizes affect mortar use and labor.
• Color & texture: Brick color comes from clay and firing; consider batch consistency and sample matching.
• Finish & surface: Smooth, wire-cut, tumbled, or glazed—pick based on aesthetic and maintenance needs.
• Thermal & acoustic properties: Mass provides thermal storage and sound dampening; consider cavity walls or insulation needs.
• Local climate & exposure: Choose frost-resistant and low-absorption bricks for cold/wet climates; engineered bricks for high-moisture sites.
• Sustainability: Reclaimed bricks, locally made clay bricks, and low-energy manufacturing options reduce carbon footprint.
• Budget: Factor material cost, delivery, waste allowance (typically 5–10%), and labor for cutting/special bonds.

Practical steps to choose

1. Define function: Structural, veneer, paving, or decorative.
2. Set aesthetic: Pick color range, texture, and joint style you want.
3. Check specs: Request compressive strength, water absorption, frost rating, and dimensions from suppliers.
4. Order samples: Inspect several from the same production batch and view on-site in different light.
5. Calculate quantities: Include 5–10% waste; account for special cuts and bond pattern.
6. Confirm compatibility: Ensure mortar, lintels, and flashings match brick type and exposure conditions.
7. Consult a mason/engineer: For structural walls, foundations, or unusual loads.
8. Plan maintenance: Choose sealed or glazed bricks for low upkeep if needed.

Common mistakes to avoid

• Relying only on photos for color match.
• Skipping strength/frost specs for exterior use.
• Underestimating waste for cutting and breakage.
• Using reclaimed bricks structurally without verification.
• Ignoring mortar compatibility and tie-in details for veneers.

Estimated costs (very approximate)

• Basic concrete facing brick: low cost per unit.
• Standard clay brick: mid-range.
• Engineering or specialty clay bricks: higher.
  Costs vary by region, supplier, and finish—get local quotes.

Maintenance tips

• Repoint mortar joints every few decades as needed.
• Clean with appropriate products; avoid harsh acids on soft bricks.
• Repair cracked or spalled bricks promptly to prevent moisture ingress.
• Use breathable sealers only when necessary.

If you want, I can:

• Provide a short checklist for an on-site brick selection visit,
• Generate a material quantity calculator for a specific wall size (give dimensions), or
• Recommend mortar types based on the brick you plan to use.