KPJ. The Difference that Makes a Difference

KPJ. The Difference that Makes a Difference Wood makes a difference because in the Whole Life Analysis timber windows have the lowest cost over a 60 year life.in comparison with other types. Here are the advantages of choosing KPJ as your supplier: 1. KPJ uses advanced technology in the manufacture of its energy efficient wooden windows, doors and mouldings. 2. KPJ products have been tested independently to meet NBR standards and now we have our very own, scientifically designed, testing equipment to ensure our rigorous standards, way beyond those required by the NBR, are maintained in-house. 3. All KPJ products have simulated performance values - see attached specimen frame+glass certificate 4. KPJ cares for the environment. KPJ uses hardwood, sourced from sustainable forests, that is carbon negative according to the Wood Window Alliance Global Warming Potential Study June 2013, partly due to its ability to absorb large amounts of carbon dioxide. 5. The Institut for Climate Change has graphed evidence that CO² level in the atmosphere has been, and still is, increasing exponentially and the oxygen level is falling. They are calling for a change in the way we treat the environment for the sake of generations to come.

Are You Converted?

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 us 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.

The Benefits of Laminated Glass

K Parker Joinery The GREEN Movement has drawn the attention of Developers, Architects and Builders to the energy saving benefits of laminated safety glass K.Parker Joinery has been supplying wooden windows and doors with safety glass to clients who are now designing and building houses for energy efficiency. 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: It saves money on the energy bill It helps preserve the environment It is good for your health It gives better indoor comfort Suppliers of energy efficient glass have worked out U values for their products and several choices are available to clients. We have looked at the advantages of two ranges, Low E and SOLARVUE™ SOLARVUE™ Neutral glass has a U value of 5.8 It limits the sun’s energy entering a room This means it is better if your interest is to keep rooms cool in summer The Low E (emissivity) Range Clear glass has a U value of 3.4 It limits the amount of heat leaving a room Therefore it is better for keeping rooms warm in winter If you have any questions regarding energy efficient glass please contact me and I am only too happy to give you answers. Using energy efficient glass includes adding rubber seals to all window openers to ensure a better fit and adding rubber seals to all external door frames. Windows lose and gain heat in four ways, by conduction, convection, radiation and air leakage

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

More on LowE Glass

I find that interest in energy efficient windows is increasing especially in regard to LowE glass and more explanation of its benefits has been requested. I also want to emphasize the insulation value of wooden frames. New Building Regulations relating to energy efficiency (SANS 10400 XA&SANS 204) include new and replacement windows and doors and it came into force on 10th November 2011. LowE (Emissivity) refers to the ability of glass to suppress direct heat radiation and absorb indirect heat radiation. The glass is coated with a very thin layer of silver on the inside of the first of the two sheets of glass. We install glass in all the windows and doors we supply so you have the confidence in knowing it will be installed properly. It is worth pointing out that heat radiation remains on the side of the glass it originated, the heat sources remain inside the home during winter months and it will keep the inside of the home warmer. In summer some of the heat is reflected away so it will keep the inside of the home cooler. How does LowE glass work? The effect of LowE glass is based on the angle of direct solar radiation Due to the sun’s differing angles during summer and winter the LowE glass works well in all seasons. In summer, when the angle is direct, some heat is reflected back outside. In winter, when the sun’s angle is less direct, indirect heat is absorbed and reflected back into room. Being cool in the summer and warm in winter is a good thing. Glass is a very good conductor of heat. It has a higher U value than most other building components. All building components need to be insulated for it to be energy efficient so windows and glass doors should not be left out of the equation because the end benefits are lower energy bills and a much more comfortable home to live in. Please try this yourselves; In regard to the frames used for the glass, touch the inside and the outside of aluminium frames now that it is winter, you will find they are equally cold, yet when you touch the inside of wooden frames it is quite warm compared to the outside. I am sure you will agree the wooden frame is so much better insulated. We are offering an economic way of installing energy efficient windows and doors in the Highveld

What is Your Visibility Rating?

I still feel a need to expand on our prime goal and focus on our manufacture of Quality Energy Efficient Wooden Windows, Doors and Mouldings. My question above relates to the role that windows play in a building's use of energy. Windows are not like Walls and Insulation Materials used for walls, roofs, ceilings and floors are insulated to resist the conduction of heat and are measured in R values. High values are more energy efficient. Windows are very different from walls and ceilings. Windows: 1. Let in light and allow people to see out. The visible transmittance rating for clear LowE glass is 82, so 82% of light comes through the glass 2. They interact with their environment in ways that insulation does not. 3. They react to outside air temperatures, sunlight and wind 4. They react to indoor air temperatures and occupant use 5. They are strongly affected by solar radiation and the airflow around them. Therefore, the window industry measures their products in terms of Thermal Transmission or U Value. This takes into account the affect of the airflow around the window and the emissivity of the glass. Low values are more energy efficient. A short term investment in an energy efficient home will bring long term savings in power bills, especially as forecasts indicate a dramatic increase in power costs over the next several years.

Is There a Downside to LowE?

MANUFACTURERS OF ENERGY EFFICIENT WOODEN WINDOWS, DOORS AND MOULDINGS Is There a Downside To LowE? Not according to the many glowing testimonials I have read on the Internet coming from the USA where LowE glass has been on sale for over 20 years. The prime concern with the early products seems to have been if solar heat gain would be limited and therefore not keep the house warm in winter months. Today, the high performance LowE glass products deal with that and other requirements. Another concern is the initial cost but the long term savings in money spent on power in the home outweigh the increased cost over untreated glass and make LowE an economic choice. How Can You Become More Energy Efficient? There are often different needs based on where you live, the orientation, your goals and how the sun's rays shine in your living room/s and other rooms. There could be a change in how you look at the usage of different areas of the house. How lighting might change, or how curtains and widow treatments will change. There are many aspects to consider. Once you have done an assessment of your needs in each room in your home we can advise on how you can best achieve your ideal in regard to light and heat to make your home as bright and comfortable as possible in every season of the year. What can you expect from LowE glass? In summer, temperatures on the Highveld can rise to 30°C on the outside. LowE keeps damaging UV out and will limit the transfer of heat from direct sunlight to about 23°C or less and maintain it, thus reducing or removing the need for A/C 89°F= 30°C. 75°F= 23°C In winter, when the High Pressure returns to the Highveld, inside temperatures can be maintained at about 20°C on sunny days, thus avoiding the need for heating. On overcast cloudy days it will be necessary to use the heater for short periods to make the home comfortable 70°F= 20°C It is not only the infrared (which causes the heat) that is blocked but also the ultra violet (which causes fading) Change to LowE and live in a Brighter and More Comfortable Home