Why Breathable
Prevents moisture buildup in aged walls
Lime Render
Optimal permeability for older brick facades
Moisture Control
Allows vapor escape, prevents dampness damage
Thermal Comfort
Enhances insulation while maintaining wall breathability
Preservation Tips
Gentle maintenance protects render integrity and heritage
Application Guide
Prepare surfaces, apply in thin breathable coats

breathable render for older properties: 5 Pro Tips

Preparing Surfaces for Breathable Render Application

Proper substrate preparation is vital for achieving durable and aesthetic results when applying breathable render for older properties. Begin by conducting a thorough site assessment to evaluate surface integrity, moisture levels, and historical coatings. Schedule work during dry weather with ambient temperatures between 5°C and 25°C, avoiding direct sunlight and strong winds for optimal curing conditions.

  • Defective Coating Removal: Carefully strip away cement-based renders, pebbledash, or layers of paint to expose a clean, sound substrate. Utilise professional tools such as the Blue Dolphin Stainless-Steel Stripping Knife, supplemented by powered needle guns or angle grinders with dust extraction, to eliminate all loose material and biological growth. Adhere to health and safety protocols for dust control and disposal.
  • Masonry Repairs: Address cracks, spalls, and eroded mortar joints through repointing with compatible lime mortars. Engage trusted repointing experts to replace damaged bricks or stones. For deeper defects, apply hydraulic lime repair mortars and stabilise with stainless-steel helical bars.
  • Substrate Priming: Balance suction and seal dust by applying a key coat. Options include the Ceresit CT16 Primer for highly absorbent surfaces or a sacrificial limewash for conservation projects. Use a low-pressure sprayer to achieve uniform coverage and prevent pooling.
  • Pre-Wetting and Moisture Equilibrium: Pre-soak the substrate with clean water to ensure consistent absorption rates. Monitor drying using electronic hygrometers, aiming for moisture readings below 10% before rendering. Implement scaffolding covers or temporary drying systems if needed in damp conditions.
  • Mesh Reinforcement: Embed alkali-resistant fibreglass mesh within the base coat and around openings. Overlap seams by 100 mm and secure with stainless-steel anchors to resist shrinkage and thermal movement.

By following these preparatory steps and using professional equipment such as mixing drills for render buckets, Simple Solutions 4 U’s skilled teams guarantee strong bonding, maintained vapour permeability, and a flawless, long-lasting finish.

Share the Post:

Related Posts

This Headline Grabs Visitors’ Attention

A short description introducing your business and the services to visitors.