2 Flooring – click your mouse to bring up each point Two main types of constructionPlatform flooring &Cut in Floors (typically strip flooring is used)Click mouse again to look at the sketches opposite & review your notes from P20Cut in floorsPlatform Floors
3 Strip Flooring Face fixed or secret nailed Undercut but joints or Laying & Clamping – click mouse to bring in each pointSelect the longest run of flooringString a line through middle of building parallel to outside wallsLay a run of boards along this lineNote: in small rooms you might start from one wall and work towards the otherCut and lay say 4 runs of board on each side of centreCramp & fixContinue laying & cramping boards in sections of 6 to 8 board maximumWhen you get close to the wall you will need to use an alternative to floor clamps, timber or a chiselUndercut but joints orOr use end matched boards
4 Platform floorsTypesStructural Grade particle boardPlywoodCompressed cement sheetSheet sizes vary in thickness which effects joist span 450 or 600 centres
5 Calculations Review your workbook calc’s Look at the sketch below: When working out quantities of floor boards to suit a particular room in a house, we calculate the amount of boards using effective cover per square metre of floor area, see the simple description below.1.0 x 1.0 = 1.0m²= 1.0m = 1000mmFor the purpose of the example, let’s say our floor boards have an effective cover of 86mm, therefore:or =Which means you can lay lineal metres of floor boards per / m² of floor areaReview your workbook calc’s1.0m1.0m
6 Practical Assessment Bearer & Joist exercise in basement Demonstration of flooring clamps & strip flooringExplanation of different set out for sheet flooring & strip.