Monday, 26 November 2012

K.PARKER JOINERY
44 12TH Road KEW Sandton
Why Choose WOOD?
We are in a very competitive industry and the benefits of choosing wood for residential buildings is often forgotten so I would like to go over some good–for-wood points in the light of the growing movement for energy efficiency.

Apart from being an aesthetically pleasing material, wood is far easier to work with than is often understood. By knowing the facts you can make a more informed decision about whether wood is the right material for your project.

Our specialty is the manufacture of quality wooden windows, doors and mouldings of all designs.

Let us look at the facts.

  1. Wood has the best thermal insulation properties of any mainstream construction material. Saves money on energy bills.

  1. Wood's cellular structure contains air pockets which limits its ability to conduct heat and gives it this good insulation. Aluminium in comparison has no air pockets and is an excellent conductor of heat which is why it is often used for cooking pots so you can imagine what happens in a house. Aluminium increases energy bills.
  2. Glass is a good conductor of heat (ever felt your steering wheel after your car has been left in the blazing sun) that is why we are now promoting LowE glass which is an energy efficient alternative. It gives you better indoor comfort. LowE glass saves money on energy bills.
  3. Wood has the best long lasting properties. An extreme example: In 2011 Archeologists found 7000 year old timbers buried in the silt below the MI6 HQ on the banks of the river Thames. Wood structures built hundreds of years ago are still standing in Russia. Wood gives long lasting savings on energy bills

Another big advantage for wood is its low embodied energy ( the sum of all the energy required to produce a product)
Wood helps preserve the environment and is good for health too
Now that we are offering LowE glass with our products we have the ideal energy efficient combination for your next building project. It will save money on energy bills
                   Please visit our website   www.kparkerjoinery.co.za  or contact me personally by email  kelly@kparkerjoinery.co.za or phone 011 786-5471

STEEL TO WOOD CONVERSIONS ON RESIDENTIAL PROPERTIES
K. PARKER JOINERY has considerable experience in converting steel windows to wood.
You are not inconvenienced during the conversion.

   There is no better time than NOW to convert
·        No breaking of walls
·        The steel window is removed
·        The steel frame is left in place
·        The wooden window is fitted into the steel frame
·        Wood cladding is placed over the steel frame
·        The wood conversion is complete
·        No fuss.  No bother.

A South African highveld case study shows that there is a 20% saving in heat conductance when steel windows are converted to wood.. This can be increased further by using shading or up to 50% if low E glass is used. Therefore conversion is a move to more energy efficiency in the house.

Contact us with details of the sizes of your windows including the design and we will quote you for the manufacture. If you agree to the cost we will visit the site to confirm the sizes before manufacture.  You will be provided with glazed windows of your choice and installation can be done expertly with qualified installers.
Phone  011 786-5471

Monday, 14 May 2012

Heat Transmittance in buildings

Heat transmittance is brought about by Radiation of electromagnetic waves travelling at the speed of light hitting the building and the heat thus produced being conducted into the house. Radiation (InfraRed) itself does not have a temperature. Heat transmittance in a building can be calculated as follows:

Φ = A × U × (T1 - T2)
where Φ is the heat transfer in watts, U is the thermal transmittance, T1 is the temperature on one side of the structure, T2 is the temperature on the other side of the structure and A is the area in square metres.

energy efficient windows

A key measure for rating the energy efficiency of a product is its U value.
The higher the U value the more heat flows through a building component so a good value is a low one as you want to keep heat inside the building or outside depending on the time of year.
Living in a building that has low U values has a number of advantages:

  1. It saves money on the energy bill
  2. It helps preserve the environment
  3. It is good for your health
  4. It gives better indoor comfort