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External wall insulation boards

Apartment building facade before external wall insulation, exposed brickwork and concrete balconies visible

External wall insulation boards are the thermal core of any EWI system. This guide explains how they work, compares EPS, mineral wool, phenolic and PIR/PUR options, and shows how to choose the right external insulation boards for your wall type, finish and regulations.

Silicone Render: The Complete Guide

Builder applying wall render around a window, evenly spreading the mortar.

Discover how silicone render works, when to use it, how it compares to other render systems, typical costs, application steps, and expert FAQs. This SEO‑optimised guide is written for homeowners, contractors and specifiers who want a durable, breathable and water‑repellent façade finish.

External Wall Insulation in London – 2025 Costs, Materials and Benefits

Worker installing graphite EPS insulation panels on exterior wall using fixings

What Is External Wall Insulation External Wall Insulation (EWI) is a system used to improve the thermal efficiency of buildings by adding insulation boards, mesh, primer, and render to the outer walls.In cities like London and Wembley, where many properties were built before modern insulation standards, EWI is one of the most effective ways to save energy […]

External wall insulation fixings: Complete guide

Construction worker in orange safety clothing installing yellow polystyrene insulation boards on an exterior foundation wall with visible mechanical fixings

Want to ensure your external insulation system stands the test of time? The secret lies in proper fixings! In this comprehensive guide, Penguins BM experts explain everything you need to know about external wall insulation fixings – from selecting the right types to professional installation techniques.