Actual Values for Wooden Windows

DOUBLE GLAZING THERMAL VALUES ADDED MAKE USE OF KPJ CERTIFIED SINGLE AND DOUBLE THERMAL VALUES TO MAKE LARGER FENESTRATION OR SAVINGS USING SINGLE CLEAR OR LOWE INSTEAD OF DOUBLE GLAZING HUGE SAVINGS to be made using ACTUAL U Value, Solar Heat Gain Coefficient (SHGC) and Visible Transmittance (VT) The entire range of KPJ Side, Top Hung and Fixtures as well as Custom made products in this range have been: A) Performance tested (SANS 613) Certificate Number—D095 B) Energy Rated (SANS 204) Certificate Number---FS028 C) Double Glazing Simulated using NFRC 100- 2010 Use KPJ ACTUAL values to achieve Conductance and Solar Heat Gain Constants U Value SHGC VT Clear Single Glazing 4.42 .55 .60 Low E Clear Glazing 2.98 .49 .56 Clear Double Glazing 2.49 .34 .42 Clear Double Glazing LowE 1.99 .43 .44 These values have been achieved using the NFRC standards. If you require further values using different types of glazing please send it to us and we will investigate for you. You Can Do More with Wood Your Guarantee of Excellence KPJ windows have been tested and certified by AAAMSA, SAGGA and SAFIERA

SAFIERA Accredited Manufacturer of Energy Efficient Wooden Windows and Doors Visit us at www.kparkerjoinery.co.za www.kparkermouldings.co.za Or email us. kelly@kparkerjoinery.co.za Or phone us. 011 786-5471 Or fax us 086-511-8810 Cell 082 555 2153 K.PARKER JOINERY 44 12th Road KEW MANUFACTURERS OF ENERGY EFFICIENT WOODEN WINDOWS, DOORS AND MOULDINGS What are the Fenestration Regulations In SANS 204? The Municipal Plans Department asks the applicant (the Owner) to nominate a professional from one of the building services to become the Competent Person who will make sure all parts of the Building Regulations are complied with when construction plans are passed and put into effect. Once the person accepts, the responsibility rests with the Competent Person to act on behalf of the Owner. What does SANS 204 say about fenestration? There are two important Regulations 1. Architects must ensure that the manufacturer of the windows and doors has a SANS 613 Performance Certificate issued by AAAMSA on behalf of SAFIERA. This applies to every construction of residential or commercial building. This certificate ensures that the manufacturer has had his products tested independently and passed the minimum requirements for air tightness, water resistance and structural strength. KPJ has the required certificates as our products have been tested and in most cases far exceed the minimum requirement. 2. In order to conserve energy demand fenestration products must not exceed the Constants for Conductance ( U Value) -heat leaving the building and Solar Heat Gain - heat entering the building, on each floor of the building. To help manufacturers who have not thermally tested their products SANS 204 provides a default list of worst case U values and SHGCs that can be used to do the calculations. This lists covers several different glazing options for a) metal frames and b) wooden frames (wood offers the best values.) Thermal testing of products will signifantly reduce these U Values and SHGCs. KPJ has made a very large financial investment in getting products thermally tested and simulated. Several windows have been tested and we can offer clients much lower U values and SHGC than those in the default list. The importance of having products thermally tested is that all sizes of similarly constructed windows and doors can be simulated to give the whole range lower U Values and SHGCs. KPJ simulations make it much easier for architects to meet the Constants. How are Simulations performed? Simulations are done after the data is received from Hot Box thermal testing of windows and doors that include glazing. The model that is thermally tested is 1200mm x 1500mm and when similar structures are used for different sizes the data for each window and door is collected and the model is scaled to simulate U Value, SHGC, and Visual Transmission. It can take into account any type of glazing as well. The formulas used for simulations are taken from the NFRC.

ENERGY MODELLING

MANUFACTURERS OF ENERGY EFFICIENT WOODEN WINDOWS, DOORS AND MOULDINGS K.Parker Joinery SAFIERA Accredited Manufacturer of Energy Efficient Wooden Windows and Doors GREEN BUILDING Here is an interesting article I received from Mike Barker of Building Physics. Mike is helping us to improve the standard of our products through simulations of U value. SHGC and Visual Transmittance. Striking a Balance The energy modelling approach allowed for by SA’s building energy usage regulations provides an attractive alternative to SANS 204 Is it possible to put up a better building at a lower cost and without the limitations of SANS 204? South Africa’s building energy usage regulations are not as restrictive as some may lead you to believe. The energy modelling approach allowed for by the regulations provides an attractive alternative. Project managers often act as client representatives and in doing so they take on the role of optimising the budget rather than just meeting it. In other words, they seek to squeeze the most value out of a project – both in terms of the delivered building and its long-term operating overheads. Avoid the constraints PMs will therefore be most interested in all the compliance routes allowed by SANS 10400 Part XA: “Energy usage in buildings”. Made mandatory on 9 November 2011, the amendments to the act require that buildings are designed and constructed so that they “are capable of using energy efficiently”. SANS 10400 XA, in turn, references the SANS 204 Standard: “Energy efficiency in buildings”. This is where a good deal of confusion arises. SANS 204 has been around for a few years and it’s easy to assume it’s the only game in town. But blindly following the SANS 204 prescriptive route will not necessarily deliver the least costly design or save the most energy. It is also important to bear in mind that 204, while a good starting point, is immature and untested. It does not take much to improve a typical South African building and therefore 204 did not have to do much to appear effective. However, what little it does, is very restrictive. Compared to other international building codes that are now over 30 years old and have had the weaknesses knocked out of them by good architects, wise quantity surveyors and even lawyers, SANS 204 has a long way to go. There will always be better ways to go about the business of designing energy efficient buildings. Two alternative compliance routes are expressly detailed in the act: 1. A rational design approach that demonstrates the energy usage of the building is equal or less than that of a baseline SANS 10400 XA building. 2. The theoretical energy usage, determined using specific software, is less than that of a baseline building as specified in SANS 10400 XA. How exactly is all this done? The answer lies in modelling the energy used by the buildings, using specialist software to simulate the annual operation of the building. This can then be utilised to improve a building’s design and to make informed decisions about the cost trade-offs. Energy modelling is a tried and trusted method widely used by modern integrated project delivery processes that are promoted by architects and engineers (e.g. American Institute of Architects, Royal Institution of Chartered Surveyors, and even PMBOK to a degree). Integrated design requires a detailed understanding of interactions in a building, and modelling should be incorporated early in the design process. To gain extra credits, energy modelling has been used extensively on over 15 000 LEED buildings and by the GBCSA’s Green Star rating tool too. Using a set of detailed equations that factor in every effect – from that of the envelope’s solar gains to HVAC performance – modelling calculates the energy used every hour of the year. A typical weather file and the schedule of the operations of the building are used. Such detailed calculations are precise, repeatable, and a least-risk rational design. Modelling is all about getting the balance right, of ensuring the design uses fenestration, thermal mass, and insulation in the right quantities and in the right circumstance to provide a building that is not only thermally and visually comfortable, but uses energy and materials responsibly. PMs need to be aware that Part XA further requires that an accredited energy modelling software be used. There are two Agrément SAapproved packages available currently. Moving toward net zero buildings Legislation in Europe requires new buildings to be so efficient by 2030 that they will have an annual net energy consumption of zero. This effectively avoids having to build new power stations, which has made our government take notice. Government is expected to follow up SANS 10400 Part XA with legislation requiring buildings to display labels showing their audited energy usage. The results of an energy efficient design will be there for all to see, with the building’s owners and prospective tenants able to pass judgement. Energy modelling as a rational design route is open and transparent and can withstand scrutiny by all parties involved. It assists the whole team to make decisions based on well-established building science. As such it is the least risky design option, and an invaluable tool that is available immediately to optimise building costs. Mike Barker (www.buildingphysics.co.za) A Committee Member of the International Building Simulation Association, and a member of ASHRAE & CIBSE. BuildingPhysics provided modelling for Africa’s first LEED NC 2009 Gold and Silver Buildings. Contact Mike: +27(0)11083 6987 / mike@buildingphysics.co.za

Do You Have SANS 613 Certificates for your Building?

Do You Have SANS 613 Certificates? THE NBR ACT REQUIRES SANS 613 CERTIFICATES FOR WINDOWS AND DOORS IN ALL NEW HOUSES AND RENOVATIONS. KPJ CAN SUPPLY YOU WITH SANS 613 CERTIFICATES Almost daily I get calls asking me for information and advice on the new energy efficiency laws and how they affect their building and renovations.(re: SANS 10400 XA and SANS 204) The NBR Act includes the requirement that home builders must adhere to the National Building Regulations and National Standards Act 103 of 1997 as amended. A Competent Person must be appointed to ensure compliance. The Standards mentioned here refer to SANS 10400 XA and. SANS 204 Fenestration forms a very important part of the regulations and the FIRST REQUIREMENT is that ALL builders of houses must get a SANS 613 certificate from his supplier which means the supplier of windows and doors has had products tested independently for airtightness, water resistance and structural strength and passed a minimum level of A1. KPJ has SANS 613 certificates for its windows and doors and therefore can supply details to the Competent Person. How to calculate your building plans against the Constant U value and SHGC ASK KPJ for simulated U values and SHGC of wooden windows and doors (in most cases, these values are much better than the worst case values in SANS 204) You can use these simulated values to calculate your building plans against the Constant U values and SHGC in SANS 204.

Are SANS 10400XA and SANS 613 linked?

Yes,  they are linked.

 I have had MANY calls on the need FOR SANS 613 CERTIFICATION BELOW 15%  

 

REGULATION XA3 INVOKES SANS 10400 XA WHICH STATES:

4.4.4 FENESTRATION

  4.4.4.3 All fenestration air infiltration shall be in accordance with SANS 613.

 

IN SUMMARY

A)   SANS 613 CERTIFICATION IS REQUIRED FOR FENESTRATION FROM 0-15 % OF NET FLOOR AREA PER STOREY AND FROM GREATER THAN 15% 

 

B)    SANS 204 4.3.4. COMES INTO EFFECT AFTER THE 15% FENESTRATION AREA HAS BEEN EXCEEDED, THEN COMPLIANCE WITH CONSTANTS FOR U VALUES AND SHGC VALUES IS REQUIRED IN ADDITION TO SANS 613

Use Only SANS 613 Compliant Wooden Windows and Doors

KPJ's full range of wooden windows - frame+glass - (Side Hung, Top Hung, Fixed, Sliding Sash and Mock Sash) is now SANS 613 compliant for both single and double glazing (a requirement in SANS 10400 XA)

 

 KPJ has tested complete wooden windows, Side Hung, Top Hung, Fixed and Sliding Sash, in the Rotatable Guarded Hot Box (RGHB) so that the customer can choose the most cost effective GLAZING option. (SANS 204)

 

This means you can use KPJ U values and SHGCs when designing your next project. Enquire for further information.

 

We are soon to be involved in an exciting project testing TRIPLE GLAZING using local glass (economical option) to prove that fenestration will return a better value than bricks and mortar.

No need to design poky windows.

 

We are also SANS 613 compliant with Sliding Doors, Single Hinged Doors and Shopfronts 

 

 

The Essential Ingredient for Every House Plan

Almost hidden in the NBR 10400 XA standard is a requirement that EVERY window placed in a new building or renovation must have passed the SANS 613 test for air tightness.

 

Why is this important?

 

Whatever the plan you have for a new building or renovation, the U value of the frame+glass is meaningless if air leaks through the frame.

 

Every type of KPJ single and double glazed window is certified as having passed the SANS 613 test.

KPJ  has SANS 613 certificates for hinged doors and shopfronts as well.

 

Further, windows cannot be tested for thermal values in the Rotatable Guarded Hot Box (RGHB) unless they have passed the SANS 613 test.

This is your guarantee that the projected in-house temperatures are accurate.