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Weber - Saint-Gobain

Upgrading the thermal insulation of a building

Initially a choice needs to be made regarding where to position additional insulation in the structure.

Problem

1. Internally

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Insulation here encroaches on the usable space and causes major disruption to tenants in refurbishment situations.

It does not address cold bridging where floors are supported on the external walls. There is a high risk of condensation at these locations as a result.

The main external envelope ends up considerably colder than before and as a consequence is vulnerable to freeze thaw degradation.

2. In the cavity

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Popular over the years, cavity insulation is limited due to available space.

The external leaf ends up considerably colder than before and therefore vulnerable to freeze thaw degradation.

It does not address cold bridging where floors are supported on the external walls. There is a high risk of condensation at these locations as a result.

Fully filled cavities may provide a bridge that carries moisture between the wet external and dry internal leaves that wets the insulation and turns it, contrary to purpose, into a very effective cold bridge.

Solution

Use External Wall Insulation (EWI) System

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External wall insulation arguably provides the technically best option for upgrading thermal insulation in existing construction and for simplifying new construction.

Solution with the following Weber products

Solution 1

webertherm FT - FrameTec System

An extruded aluminium spanning rail to provide a cavity when using External Wall Insulation with single skin or frame construction

webertherm XB - Brick Slip System

Our External Wall Insulation system featuring real brick slips for an authentic brick finish

webertherm XM - Multi Layer System

Our traditional multi-layer render system which incorporates an extensive range of versatile and attractive finishes.

webertherm XP - XPress System

Our unique XPress system incorporating a through-coloured render which can be applied by pump for speed and simplicity.

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