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Spray Foam Insulation


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AGRISPRAY OS
DURATHERM OS
Bridge Infill Case Study
PIRTHANE ‘‘O’’
Soffit Insulation Case
   Study
TECHNITHERM
Wall Tie Replacement -
   Insulation Case Study
THERMADEK 40 LK
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   Study

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Winter Application
   Case Study 1
Winter Application
   Case Study 2

Technitherm

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The Client: Liverpool Housing Trust.

The Problem: When gale force winds ripped the brick cladding from a 1960s                      tower block, immediate action was called for. Several more blocks                      were surveyed and it was revealed that up to 70% of the wall ties                      were missing.

The Solution: To minimise disruption to the tenants, Technitherm structural                      polyurethane foam was specified, to glue the inner and outer walls                      together. The foam is mixed and injected with a hand-held gun,                      through holes drilled into the mortar joints, on the outside of the                      building. Starting off as a liquid the foam then expands and sets in                      the cavity, to form a continuous structural connection between the                      inner and outer leaves. It has been used successfully in the past to                      treat properties with weak mortar joints, corroded wall ties, poorly                      fitted cavity insulation and hollow block inner leaves, where previous                      attempts at stabilisation with mechanical fixings had failed.

The Outcome: Polyurethane foams happen to be the most efficient insulating                      systems, thickness for thickness, on the market. This means the                      walls were brought up to current Building Regulation standard and                      in so doing, will save up to 25% in energy bills. Because                      Technitherm foams “in situ” it fills cracks and gaps to add to the                      draught proofing and its closed cell nature prevents penetration                      from the driving rain. Recent developments in the foam formulation                      now means Technitherm is CFC and HCFC free, with a zero ODP
                     ( Ozone Depletion Potential ) rating.