PROBLEM

So, I'm having trouble trying to find a way to measure the heat absorbency of steel. I've had a look around and I'm heading out today to hopefully get some steel samples and other equipment for the experiment. Anyway I'll keep you posted and let you know how its going.

Here is my climate graph. It includes minimum and maximum temperatures for Sydney and average rainfall for a year.

The idea of the graph was to help us understand which information is neccessary and which is not.

Hopefully it will help me better acknowledge what is neccessary information in my own project.

Here is the method for my experiment:

Method: Part A

1. Lay five different colour of steel out in sun.
2. Leave for 1 hour.
3. Record temperature of steel.

Method: Part B

1. Collect steel samples and cardboard.
2. Set-up steel sample at different roof pitches
3. Leave in sun for 4-6 hours
4. Record Observations and temperature
5. Repeat steps 3 and 4, 3 times, each time facing a new direction (i.e North, South, East and West)

hey there,

so here's a fun fact for you -

roof pitch is the degree of the slope of the roof

roof pitch is found by rise over run, kind of like gradient in maths. The higher the number the steeper the slope. e.g 4/12 is steeper than 2/12.

there's a picture above to help understand

anyway that's all for today

bye

hi there,

my last blog was over a month ago! sorry. ive been travelling. i have to admit though I've come across some pretty amazing roofs - the sistine Chapel, for example :D

seriously though, I have found a website that has a selection of colours used for residential steel roofing. A lot of the information is about the asthetics, but there are small bits of information relating to energy. This site will hopefully help in choosing the colours of steel Iwill use for my experiement.

http://www.colorbondcolours.com/home/residential/information/selecting-colours/tips-for-colour-selection

anyway that's all from me tonight. I just got back! about three hours ago.

be back soon.