Added by on 2016-01-11

Review of basic geometry, Pythagoras’ Theorem and Similar Triangles, needed for roof calculations Video Rating: / 5 – Made by roofers for roofers, this is the BEST mobile roof estimating software you can find! Roof Calc for iPhone: Roof Calc for Android: Check out Live demo with FULL functionality, before you buy this app – Related PostsBuild a Garden Shed – Roof FramingRoof Framing 101 Volume 1.0Green Roof Overview by Greensulate CEO, Amy Norquist.Shipping container house – Green roofPrairie Green RoofOptigr

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  • Marios Ioannou 1 year ago

    Hi Michael, I found your lecture very interesting and informative. I think its good to explain fully how it all works. I, personally, will remember this lecture and put it to good use in the future. I just have one question at 18:13 onwards where the small triangle at the top shows a ratio of 1:1.5 re the slope. Is this a mistake or maybe I'm not fully understanding this. Can you please clarify??

  • Jenny Tei 1 year ago

    Hello we dedicated on manufactured stone , clay tiles on wall.
    Welcome contact jennytei(skype) for detailed information.?

  • neil arreola 1 year ago

    Just draw the truss diagram in autocad, right click on any line to show its properties and the length will be given. No need for calculations.?

  • richard edwards 1 year ago

    anybody ever look at a carpenters square.?

  • Angelo Koumondji 1 year ago

    wow, this is a lot of Math. Good knowledge tho, I just cannot keep up, lollll?

  • Ataur Rahman 1 year ago

    Appreciate Video! Excuse me for butting in, I would appreciate your thoughts. Have you heard about – Mahorrla Wooden Paradise Method (search on google)? It is an awesome one off product for building better sheds and woodworking without the headache. Ive heard some decent things about it and my m8 after many years got cool results with it.?

  • Jb oossshhh 1 year ago

    great lecture very informative, what I don't understand is why engineers and framing chippies are watching this and then knocking it,its a tutorial for people !!!!!!!!!?

  • All American Handyman 1 year ago

    Detailed explanation. Worth watching!?

  • Emily Schultz 1 year ago

    Thank You for making this! ?

  • EBRO EVETS 1 year ago

    I think I'm just going to steam bend some long boards into shape…hehehehe

  • Michael David Hiltner 1 year ago

    I'll be building a 12×18 shed to join to my existing 12×12 shed (will remove the sheathing from the joining side), remove my existing roof and tie it in to my new shed, later

  • tammy ghashghaie 1 year ago

    Dear professor
    amazing and informative lecture
    truly Tammy?

  • Horace Smith 1 year ago

    i always wanted this information, thanks for the formula?

  • G MIMO 1 year ago

    i got 25using his above buttons on calculator?

  • Sean Walsh 1 year ago

    Worked are butts off to create this beast. Framers love it. Take a look.

  • 2Phast4Rocket 1 year ago

    I do engineering for a living and this is making a simple problem being made complicated. Why do you want to complicate such a simple job?

  • calvin busch 1 year ago

    I used to cut roof rafters for framing conventional roofs with a calculator also and then built them. I understand how to do this, but after listening to you explain this I see why I hated math in school. Sorry, but while this is an excellent explanation, it is dry enough to put me back to sleep.?

  • More1best Homes 1 year ago

    This is great !!
    If you are looking for how to measure roof?, you've come to the right place. This article will guide you through the five steps.
    – See more at:

  • pieciu73 1 year ago

    Bunch of … one minute maybe if you have all dimensions "on the plate", 19.99 rip off , show me how you do it in one minute either from blue prints or in the field …

  • Paul Axford 1 year ago

    what a great app!! As an inventor of innovative roof guttering in Sydney, I applaud you!!

  • RoofCalculator 1 year ago

    Nate – We are developing a specialized app for commercial single ply roofing application (Rubber / PVC / TPO), which could also be used for modified bitumen with small modification.

    We will release it as stand alone product and combined with this steep slope calculator.

  • lucky 1 year ago

    can that app estimate sbs build up roofing?

  • Yelena G 1 year ago

    this looks like it can be a great time saver when doing a roof estimate at client's home

  • coolflatroof 1 year ago

    Great app!