Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Looking for a smarter way to manage your heating this winter? We’ve been testing the new Aqara Radiator Thermostat W600 to see how quiet, accurate and easy it is to use around the home. Click here read our review.
If you want to work out the stresses etc then
Dr Beam and Dr truss are quite good and available as demo http://www.drsoftware-home.com/
If you have a mac try and get hold of 'vectorworks' by nemetschek.
it is a cad program that will automatically design any type of roof down to the last purlin and will even generate a cutting list and quantity prices. It does almost anything you could ever need for a building job including terain surveys, staircases, spiral too, hvac, plumbing, steels, the works.
not sure if it has a demo but well worth a look - I'd be lost without it. http://www.nemetschek.net/products/index.php