StoTherm Masonry

New requirements for better energy efficiency

In August 2007 the Department of Building and Housing announced major changes to Clause H1 of the Building Code, which deals with energy efficiency, thermal storage and insulation. The changes include, amongst other things, increased insulation requirements and the increased recognition of the appropriate use of thermal mass. The changes affect all houses, and other buildings that have a floor area less than 300m2.

 

 

Zone 1     Zone 2     Zone 3

New R-Values for Different Zones   R-Values Timber R-Values Solid Masonry Roof  2.9  2.9  3.3  3.5  3.5  3.5 Wall  1.9  1.9  2.0  0.8  1.0  1.2 Floor  1.3  1.3  1.3  1.5  1.5  1.5 Vertical Glazing  0.26  0.26  0.26  0.26  0.26  0.26 Skylights  0.26  0.26  0.31  0.26  0.26  0.31

Internal Insulation (must meet timber R-V) StoTherm-Masonry Insulation R-V 1.9 R-V 1.9 R-V 2.0 Masonry Insulation 60mm panel (meets all R-Values) R-V 1.5 80mm panel (meets all R-Values) R-V 2.0 100mm panel (meets all R-Values) R-V 2.5 (standard 100x50 framing)

 

Different insulation options have different effects on the physical properties of a building.

Sto's External insulation offers significant advantages; it offers a favourable temperature curve and shields the substrate from thermal shocks. There are no cold bridges and the existing heat retention capabilities of solid masonry walls are fully utilised, interstitial condensation can be eliminated irrespective of climate conditions. The internal wall temperature increases which reduces the risk of condensation, damp and mould.

 

While internal insulation allows a room to be heated quickly, that's about its only plus point. Its temperature curve is poor, and the external wall remains vulnerable to the elements. The heat retention capability of the existing wall is not utilised in winter, and it is susceptible to an internal dew point resulting in condensation, damp and mould. In summer the process is reversed with the masonry wall heating the interior environment. Note: When insulating internally only, masonry walls need to meet the timber insulation requirements.

 

StoTherm Masonry System

StoTherm Classic Masonry has now been the international benchmark in the field of facade insulation for over 40 years.

Its shock proof and impact resistance is up to 6 times higher than that of mineral cement based systems offering the utmost in fracture prevention. It consists of a co-ordinated systematic approach providing the optimum insulation requirements for concrete block construction. For a component break-down of the StoTherm Insulation System, please refer to the StoArmat Miral StoTherm Insulation System brochure.

 

Click on each of the layers below to see the components of the StoTherm Masonry System.

 

 

 

Stolit: Coloured Finishing Renders

Stolit organic finishing renders are manufactured in Europe and certified around the world. They have been in successful use for over 50 years on a variety of different substrates. During this time they have undergone a continual process of optimisation.

 

The perfect combination of properties:Durable, strong, hardwearing, impact resistant, malleable, weather resistant, colour stable and highly resistant to micro-organism. They are designed with good vapour permeability to allow the building to breathe while still repelling liquid water. All renders are easy to apply and can be tinted from the StoColor System or matched to the colour of your choice, using the Sto spectrometer.

 

Coloured Self-Gauging Float Finish Renders:
StolitK 1.0mm TDS / TDS Quick Setting	StolitK 1.5mm TDS / TDS Quick Setting	StolitK 2.0mm TDS	StolitK 3.0mm TDS
StoTherm Classic System:

Stolit MP TDS / TDS Quick Setting	Stolit MP Natural TDS

 

The Perfect Finish: Competence in Colour