Gary Saunders 应用
Roofing Ready Reckoner 2.0
This version does not work on Android Lollipopbut will on all Versions up to Kitkat. NEW VERSION CAN BE FOUNDHEREhttps://play.google.com/store/apps/details?id=appinventor.ai_garysaunders158.rooferI can only apologize to all users of the original Roofer App butdue to circumstances beyond my capabilities i am only able tocreate a new version rather than upgrade the old version..THIS NEWVERSION 3 CAN BE DOWNLOADED FROM PLAYSTORE .Metric VersionEnter the Building Span, Roof pitch and Rafter spacingand this Reckoner, will return the TRUE LENGTHS of Hip, Valley andCommon Rafters to Three decimal points.It also give you the Jack Rafter diminish and all the Plumb Cuts,Seat Cuts and Jack Rafter Edge Cut angles in degrees for the Roofmembers.Newly added Purlin Edge Cut and Purlin Side Cut Angle,Hip Backing Angle, Hip Edge Angle,Plan Angle and SheathingAngle.There is some diagrams on using True lengths on my web sitehttp://roofersreadyreckoner.co.uk just followthe link lower on the pageSave time,money and less wasted timber when pricing by workingout Roof timber lengths using this easy to use Roofing ReadyReckoner as Reviewed in Home Building and Renovating magazine.Thereview can be read on my website as listed below.Timber thicknesses for Hip/Valley and Ridge need to besubtracted from the returned true Rafter Lengths and the roofplates must be level, paralleled to each other and square.Remember this app returns the True Lengths of the rafters..Disclaimer:This is a aide to Roofing and a basic understanding of roof framingis necessary, always double check measurements..(measuretwice...Cut once).I have checked the return values rigorously but i cannot checkevery possible combination of returned values.As roof projects/building construction are out of my control, icannot not accept any responsibility regardingmaterials,workmanships or costs relating to the use of this RoofingReady Reckoner..always check your measurements.(measure twice...Cut once).
