HEAT, AIR & MOISTURE
Author Responses to
Frequently Asked Questions
When I load the software the first screen appears too large for
my screen. Why does this occur? How do I fix it?
The H.A.M. Toolbox is designed to fit five
screen resolutions. These include 640X480, 800X600, 1024X768,
1280X1024 and 1600X1200. On occasion a Windows System may be
set to an odd resolution that will cause the enlarged screen.
To correct this property you may change the font settings to
normal or use the Alt F7 and Alt F8 keys to reduce or enlarge
the H.A.M. Toolbox screens. These keys may only be used
on the opening screen. It will not function on any of the other
screens but it will adjust all screens at the same time.
3. When I loaded the H.A.M.
Toolbox I noticed that the screen was in a strange colour
combination. Are there other colour combinations that may be
used on the H.A.M. Toolbox?
Generally, the colour schemes used with the H.A.M.
Toolbox will appear in the intended format. However, with
Windows XP in particular, several formats may be available. To
see the original intended colour presentation, select the normal
and/or standard colour properties. To do so click “Control
Panel” to reveal the control panel icons. Select display and
choose the appearance tabs on the display properties. In the
windows and buttons combo box below select “Windows Classic
Style”. In the colour scheme combo box below select “Windows
standard”. This will return your computer to traditional
Windows presentation and colour format.
4. I loaded the
software but the analysis values seam incorrect?
The software uses the period as the decimal
point. If you are using the French Windows Operating System it
may be using the comma as the decimal point. The software is
not yet designed for International use. To correct, change your
operating system parameter use the period (.) as the decimal
5. Why can't I input a
new generic material?
The H.A.M Toolbox allows the user to modify the
material properties or to associate a manufacturer’s data with
any of the materials listed. However, it does not allow the
input of a new generic material because each new generic
material must have a drawing symbol associated with it for
display on the graph. We apologize for this limitation. But if
you forward your suggestions for new materials to our Email
site, we will make sure to include it in one of our next H.A.M.
Toolbox revisions which are free.
database does the program use for weather data? Is it ASHRAE and
current is it?
The HAM Program used
weather data from both the most current National
Building Code of
Canada and the ASHRAE Fundamentals Handbook 1997. The
weather data is
generally a summary of about thirty (30) years of records for
each location used to
derive various design values. We use the 1.0% design data
for both summer and
winter design temperatures. The relative humidity data is
obtained from air
conditioning loads for the summer and from mean dewpoint
temperatures in winter
where available. If a winter design temperature is
below -10oC, we assume
80% outdoor RH for those locations. This is most
reasonable as winter
outdoor air is almost always near saturation.
7. When using
insulation between metal studs for exterior walls, does the
the insulation due to bridging?
The program does not
de-rate insulation. To de-rate an assembly you must
undertake a parallel
heat flow (PHFA) analysis. This is quite simple. 1st, you
determine the "R"
value for a wall through the cavity. 2nd, you determine the
"R" value of the wall
through the stud (replace cavity insulation with wood or
steel stud). Then you
add the "R" values in proportion to their respective wall
For example, a wall
system "R" value at the wall cavity measures RSI-5. The
cavity areas occupy
92% of the wall. The wall system "R" value measures RSI-2
at the steel stud
section. It occupies 8% of the wall. The de-rated "R" value is
then computed as
follows: 5 x 0.92 + 2 x 0.8 = RSI-4.76. This is a most
reasonable way of
de-rating a wall system for the inherent thermal bridges
8. Is the cost of
the software for one seat or is it a network version?
The software is $840
Canadian or US Dollars and for up to two computers.
Additional copies are
priced at $185 Canadian or US Dollars.
9. Is there a
demo version available?
There is no demo
version, but the product is offered with an unconditional 30-