1. Conventional Roof Framing Class Exercise 1 - 30 0 Residential Studies Certificate IV 2182D

2. Using the Floor Plan & Details provided complete the Preliminary Calculations so that the most economical Size, Span and Spacing Of the Ceiling and Roof members can be achieved.

3. Note: Hyspan LVL Strutting Beams to Living/Family & Living/Dining rooms as shown Floor Plan Class Exercise 1

4. Preliminary Calculations Common Rafter True Length of Common RafterPitch 30 0 30 0 Half Span 3.635 Rise 2.099 Half Span = 7.570 – 0.150 2 = 3.635m Rise = 30 Tan x 3.635 = 2.099m TLCR = 4.197 TLCR = 3.635 30cos = 4.197m

5. Calculate Common Rafter Span - RLW 4.197 RLW = 4.197 2 = 2.098m 2.098 RLW = 2.098m Say 2.100m

6. Calculate Eaves Overhang – Eaves RLW 0.1500.450 TL O/Hang = 0.450 + 0.150 COS 30 = 0.693m 0.693m RLW Eaves = 0.693m

7. Calculate Fan Struts 2.098 0.693 Strut = 2.1 Strut = Tan30 x 2.098 = 1.211 1.211 Strut

8. Calculate Fan Strut Length 1.211 Fan Strut =  1.211 2 + 1.211 2 = 1.713m or = 1.211 cos 45 = 1.713m 1.713 Half Spread Fan Strut = 1.211m Fan Strut Length = 1.713m

9. Calculate Distance X. 2.098 0.693 Distance X is the distance From the inside of the plate to the centre of the underpurlin. The Formula is Run of rafter divided by 2 minus the width of the wall plate Run of rafter = 3.635 3.635 / 2 = 1.818 1.818 – 90 = 1728

10. Summary: Rafter Span = 2.098 Say 2.100 RLW Underpurlin = 2.1 Eaves Overhang = 0.693 Distance X = 1.728 Half spread of the fan strut = 1.211 Full spread of the fan strut = 2.422 Length of strut = 1.713

11. Using the information from the Preliminary Calculations & The Job Specification Fill in the Project job sheets to arrive at final design requirements.

12. MemberRule/TableSizeComments Timber Species Timber Grade Supp. No. Roof Mass Type/Construct. Floor to Ceiling height Eaves Width Fill in comments column with information from project specification General Information from Project Details

13. MemberRule/TableSizeComments Timber Species Timber Grade Supp. No. Roof Mass Type/Construct. Floor to Ceiling height Eaves Width Seasoned S/Wood Fill in comments column with information from project specification General Information from Project Details

14. MemberRule/TableSizeComments Timber Species Timber Grade Supp. No. Roof Mass Type/Construct. Floor to Ceiling height Eaves Width Seasoned S/Wood Fill in comments column with information from project specification MGP 15 General Information from Project Details

15. MemberRule/TableSizeComments Timber Species Timber Grade Supp. No. Roof Mass Type/Construct. Floor to Ceiling height Eaves Width Seasoned S/Wood Fill in comments column with information from project specification MGP 15 6 – N3 General Information from Project Details

16. MemberRule/TableSizeComments Timber Species Timber Grade Supp. No. Roof Mass Type/Construct. Floor to Ceiling height Eaves Width Seasoned S/Wood Fill in comments column with information from project specification MGP 15 6 – N3 10Kg/m 2 General Information from Project Details

17. MemberRule/TableSizeComments Timber Species Timber Grade Supp. No. Roof Mass Type/Construct. Floor to Ceiling height Eaves Width Seasoned S/Wood Fill in comments column with information from project specification MGP 15 6 – N3 10Kg/m 2 Conventional General Information from Project Details

18. MemberRule/TableSizeComments Timber Species Timber Grade Supp. No. Roof Mass Type/Construct. Floor to Ceiling height Eaves Width Seasoned S/Wood Fill in comments column with information from project specification MGP 15 6 – N3 10Kg/m 2 Conventional 2.700 General Information from Project Details

19. MemberRule/TableSizeComments Timber Species Timber Grade Supp. No. Roof Mass Type/Construct. Floor to Ceiling height Eaves Width Seasoned S/Wood Fill in comments column with information from project specification MGP 15 6 – N3 10Kg/m 2 Conventional 2.700 0.450 General Information from Project Details

20. Using A.S. 1684.2 (2006) – Section 7 Roof Framing 1. Obtain information for Ceiling Joists to complete job sheet. MemberRule/TableSizeComments Ceiling Joists RTRRTR 90 x 35 Single Span Continuous Span (over more than 1 span) 1.Page 81 – rule 7.2.4 ceiling joists(building practice) 7.2.4 2.Page 98 – rule 7.3.6 ceiling joists (member sizes) 7.3.6 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15)

21. Using A.S. 1684.2 (2006) – Section 7 Roof Framing 1. Obtain information for Ceiling Joists to complete job sheet. MemberRule/TableSizeComments Ceiling Joists RTRRTR 90 x 35 1200c/c Single Span Continuous Span (over more than 1 span) 1.Page 81 – rule 7.2.4 ceiling joists(building practice) 7.2.4 2.Page 98 – rule 7.3.6 ceiling joists (member sizes) 7.3.6 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 21 4. Find allowable spans for 90 x 35 MGP15 ceiling joists from table 21 supp. 6

22. Using A.S. 1684.2 (2006) – Section 7 Roof Framing 1. Obtain information for Ceiling Joists to complete job sheet. MemberRule/TableSizeComments Ceiling Joists RTRRTR 90 x 35 1200c/c Single Span Continuous Span (over more than 1 span) 1.Page 81 – rule 7.2.4 ceiling joists(building practice) 7.2.4 2.Page 98 – rule 7.3.6 ceiling joists (member sizes) 7.3.6 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 21 4. Find allowable spans for 90 x 35 MGP15 ceiling joists from table 21 supp. 6 2.400

23. Using A.S. 1684.2 (2006) – Section 7 Roof Framing 1. Obtain information for Ceiling Joists to complete job sheet. MemberRule/TableSizeComments Ceiling Joists RTRRTR 90 x 35 1200c/c Single Span Continuous Span (over more than 1 span) 1.Page 81 – rule 7.2.4 ceiling joists(building practice) 7.2.4 2.Page 98 – rule 7.3.6 ceiling joists (member sizes) 7.3.6 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 21 4. Find allowable spans for 90 x 35 MGP15 ceiling joists from table 21 supp. 6 2.400 2.800

24. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR Bedroom 1 Bedroom 2 Bedroom 3 Bath / WC Laundry Kitchen Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15)

25. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR Bedroom 1 Bedroom 2 Bedroom 3 Bath / WC Laundry Kitchen Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15

26. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR Bedroom 1 Bedroom 2 Bedroom 3 Bath / WC Laundry Kitchen Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

27. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 Bedroom 1 Bedroom 2 Bedroom 3 Bath / WC Laundry Kitchen Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

28. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 Bath / WC Laundry Kitchen Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

29. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 Bath / WC Laundry Kitchen Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

30. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC Laundry Kitchen Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

31. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC Laundry Kitchen Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

32. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 ________ Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC NA Laundry Kitchen Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

33. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 ________ Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC NA Laundry NA Kitchen Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

34. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 ________ Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC NA Laundry NA Kitchen 3.540 1.750 Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

35. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 ________ 140 x 35 Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC NA Laundry NA Kitchen 3.540 1.750 Dining Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

36. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 ________ 140 x 35 Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC NA Laundry NA Kitchen 3.540 1.750 Dining 3.690 1.750 Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

37. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 ________ 140 x 35 Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC NA Laundry NA Kitchen 3.540 1.750 Dining 3.690 1.750 Family Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

38. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 ________ 140 x 35 Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC NA Laundry NA Kitchen 3.540 1.750 Dining 3.690 1.750 Family 2.740 1.750 Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

39. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 ________ 140 x 35 120 x 35 Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC NA Laundry NA Kitchen 3.540 1.750 Dining 3.690 1.750 Family 2.740 1.750 Living Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

40. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 ________ 140 x 35 120 x 35 Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC NA Laundry NA Kitchen 3.540 1.750 Dining 3.690 1.750 Family 2.740 1.750 Living 3.690 1.750 Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

41. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 ________ 140 x 35 120 x 35 140 x 35 Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC NA Laundry NA Kitchen 3.540 1.750 Dining 3.690 1.750 Family 2.740 1.750 Living 3.690 1.750 Entry 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

42. 2. Obtain information for Hanging Beams MemberRule/TableSizeComments Room Span CLW Hanging Beams RTRRTR 140 x 35 90 x 35 ________ 140 x 35 120 x 35 140 x 35 ________ Bedroom 1 Bedroom 2 3.500 1.250 Bedroom 3 2.400 1.750 Bath / WC NA Laundry NA Kitchen 3.540 1.750 Dining 3.690 1.750 Family 2.740 1.750 Living 3.690 1.750 Entry NA 1.Page 82 – rule 7.2.5 Hanging Beams(building practice) 7.2.5 2.Page 99 – rule 7.3.7 Hanging Beams (member sizes) 7.3.7 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 23 4. Determine Hanging Beams to rooms from table 23 supp. 6, MGP15 3.500 1.750

43. 3. Obtain information for Rafters MemberRule/TableSizeComments Common Rafter RTRRTR Rafter Spacing RLW Eaves O/Hang Underpurlin is mid-span of Rafter Fill in comments column with information from project specification & Prelim. Calcs. 1.Page 86 – rule 7.2.11 Rafters(building practice) 7.2.11 2.Page 105 – rule 7.3.13 Rafters (member sizes) 7.3.13 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15)

44. 3. Obtain information for Rafters MemberRule/TableSizeComments Common Rafter RTRRTR Rafter Spacing RLW Eaves O/Hang Underpurlin is mid-span of Rafter Fill in comments column with information from project specification & Prelim. Calcs. 1.Page 86 – rule 7.2.11 Rafters(building practice) 7.2.11 2.Page 105 – rule 7.3.13 Rafters (member sizes) 7.3.13 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 29 4.Determine Rafter Size from table 29 supp. 6, MGP15, N3 (Check - single or continuous span - roof mass – span – O/hang)

45. 3. Obtain information for Rafters MemberRule/TableSizeComments Common Rafter RTRRTR Rafter Spacing RLW Eaves O/Hang Underpurlin is mid-span of Rafter Fill in comments column with information from project specification & Prelim. Calcs. 1.200 1.Page 86 – rule 7.2.11 Rafters(building practice) 7.2.11 2.Page 105 – rule 7.3.13 Rafters (member sizes) 7.3.13 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 29 4.Determine Rafter Size from table 29 supp. 6, MGP15, N3 (Check - single or continuous span - roof mass – span – O/hang)

46. 3. Obtain information for Rafters MemberRule/TableSizeComments Common Rafter RTRRTR Rafter Spacing RLW Eaves O/Hang Underpurlin is mid-span of Rafter Fill in comments column with information from project specification & Prelim. Calcs. 1.200 2.100 1.Page 86 – rule 7.2.11 Rafters(building practice) 7.2.11 2.Page 105 – rule 7.3.13 Rafters (member sizes) 7.3.13 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 29 4.Determine Rafter Size from table 29 supp. 6, MGP15, N3 (Check - single or continuous span - roof mass – span – O/hang)

47. 3. Obtain information for Rafters MemberRule/TableSizeComments Common Rafter RTRRTR Rafter Spacing RLW Eaves O/Hang Underpurlin is mid-span of Rafter Fill in comments column with information from project specification & Prelim. Calcs. 1.200 2.100 0.693 1.Page 86 – rule 7.2.11 Rafters(building practice) 7.2.11 2.Page 105 – rule 7.3.13 Rafters (member sizes) 7.3.13 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 29 4.Determine Rafter Size from table 29 supp. 6, MGP15, N3 (Check - single or continuous span - roof mass – span – O/hang)

48. 3. Obtain information for Rafters MemberRule/TableSizeComments Common Rafter RTRRTR Rafter Spacing RLW Eaves O/Hang Underpurlin is mid-span of Rafter Fill in comments column with information from project specification & Prelim. Calcs. 1.200 2.100 0.693 1.Page 86 – rule 7.2.11 Rafters(building practice) 7.2.11 2.Page 105 – rule 7.3.13 Rafters (member sizes) 7.3.13 3. Determine Span Table of supplements(supp. 6, N3, s/softwood, MGP 15) 29 4.Determine Rafter Size from table 29 supp. 6, MGP15, N3 (Check - single or continuous span - roof mass – span – O/hang) 140 x 45

49. 4. Obtain information for Collar Ties MemberRule/TableSizeComments Collar Ties RTRT or Length Check section 7 (Roof Framing) for information – rules & tables for Collar Ties Note:Find rules relating to Collar Ties. Page 90 Rule 7.2.16 & Page 109, Rule 7.3.17 – Other members or Components, states that Table 7.6 give details for miscellaneous roof framing members not given in span tables of the supplements. 7.2.16 & 7.3.17

50. 4. Obtain information for Collar Ties MemberRule/TableSizeComments Collar Ties RTRT or Length Check section 7 (Roof Framing) for information – rules & tables for Collar Ties Note:Find rules relating to Collar Ties. Page 90 Rule 7.2.16 & Page 109, Rule 7.3.17 – Other members or Components, states that Table 7.6 give details for miscellaneous roof framing members not given in span tables of the supplements. 7.2.16 & 7.3.17 Page 110, Table 7.6 – Collar Ties gives required Information 7.6 (page 110)

51. 4. Obtain information for Collar Ties MemberRule/TableSizeComments Collar Ties RTRT or Length Check section 7 (Roof Framing) for information – rules & tables for Collar Ties Note:Find rules relating to Collar Ties. Page 90 Rule 7.2.16 & Page 109, Rule 7.3.17 – Other members or Components, states that Table 7.6 give details for miscellaneous roof framing members not given in span tables of the supplements. 7.2.16 & 7.3.17 Page 110, Table 7.6 – Collar Ties gives required Information 7.6 (page 110) Refer to floor plan to calculate length of collar tie: 7.270 / 2 = 3.635 3.635

52. 4. Obtain information for Collar Ties MemberRule/TableSizeComments Collar Ties RTRT 70 x 35 Length Check section 7 (Roof Framing) for information – rules & tables for Collar Ties Note:Find rules relating to Collar Ties. Page 90 Rule 7.2.16 & Page 109, Rule 7.3.17 – Other members or Components, states that Table 7.6 give details for miscellaneous roof framing members not given in span tables of the supplements. 7.2.16 & 7.3.17 Page 110, Table 7.6 – Collar Ties gives required Information 7.6 (page 110) Refer to floor plan to calculate length of collar tie: 7.270 / 2 = 3.635 3.635

53. 5. Obtain information for Ridge board MemberRule/TableSizeComments Ridge RTRT Not Strutted Check section 7 (Roof Framing) for information – rules & tables for Ridge boards Note:Find rules relating to Ridge boards 7.2.12

54. 5. Obtain information for Ridge board MemberRule/TableSizeComments Ridge RTRT Not Strutted Check section 7 (Roof Framing) for information – rules & tables for Ridge boards Note:Find rules relating to Ridge boards Page 86, Rule 7.2.12 – The size of Ridge boards shall be determined from Table 7.6 7.2.12 7.6 (page 110) Table 7.6 Ridge boards – Refers to Unstrutted ridges in coupled roofs has having a depth not less than length of Rafter Plumb-Cut x 19mm thick

55. Rafter 140 x 45 MGP 15 Seasoned Softwood Ridge 0.140 Length of Plumb Cut Length of Plumb cut = Rafter Depth Cos. Roof Pitch = 0.140 Cos. 30 0 = 0.162 0.162 Refer Table 7.6 (AS 1684.2) page 110, Ridge depth = rafter plumb cut x 19mm thick. Therefore use 170 x 19 MGP 15 S/wood.

56. 5. Obtain information for Ridge board MemberRule/TableSizeComments Ridge RTRT Not Strutted Check section 7 (Roof Framing) for information – rules & tables for Ridge boards Note:Find rules relating to Ridge boards Page 86, Rule 7.2.12 – The size of Ridge boards shall be determined from Table 7.6 7.2.12 7.6 (page 110) Table 7.6 Ridge boards – Refers to Unstrutted ridges in coupled roofs has having a depth not less than length of Rafter Plumb-Cut x 19mm thick Calculate Rafter Plumb-Cut Length - 0.140 = 0.162(Therefore 170 x 19 Ridge) cos 30 170 x 19

57. 6. Obtain information for Hip Rafter (Hip) MemberRule/TableSizeComments Hip Rafter RRTRRT Check section 7 (Roof Framing) for information – rules & tables for Hip Rafters Note:Find rules relating to Hip rafters Page 87, Rule 7.2.13 – Hip & Valley Rafters 7.2.13 7.3.17 )

58. 6. Obtain information for Hip Rafter (Hip) MemberRule/TableSizeComments Hip Rafter RRTRRT Check section 7 (Roof Framing) for information – rules & tables for Hip Rafters Note:Find rules relating to Hip rafters Page 87, Rule 7.2.13 – Hip & Valley Rafters Page 109, Rule 7.3.17 - The size of Miscellaneous roof members shall be determined from Table 7.6 7.2.13 7.3.17 7.6 (Page 110) Table 7.6 - states that hips should be 50mm greater In depth than rafters x 19 thick (seasoned) for stress grades F11/ MGP15 min. No less than rafter stress grade.

59. 6. Obtain information for Hip Rafter (Hip) MemberRule/TableSizeComments Hip Rafter RRTRRT Check section 7 (Roof Framing) for information – rules & tables for Hip Rafters Note:Find rules relating to Hip rafters Page 87, Rule 7.2.13 – Hip & Valley Rafters Page 109, Rule 7.3.17 - The size of Miscellaneous roof members shall be determined from Table 7.6 7.2.13 7.3.17 7.6 (Page 110) Table 7.6 - states that hips should be 50mm greater In depth than rafters x 19 thick (seasoned) for stress grades F11/ MGP15 min. No less than rafter stress grade. Use 190 x 19 Hip Rafters (140 + 50 = 190) 190 x 19

60. 7. Obtain information for Under purlins MemberRule/TableSizeComments Underpurlin RRTRRT 140 x 70 Span Direct from Span Tables of Supplements. Max. Span = Check section 7 (Roof Framing) for information – rules & tables for Underpurlins Note:Find rules relating to Underpurlins Page 84, Rule 7.2.10 – Underpurlins 7.2.10 7.3.12

61. 7. Obtain information for Under purlins MemberRule/TableSizeComments Underpurlin RRTRRT 140 x 70 Span Direct from Span Tables of Supplements. Max. Span = Check section 7 (Roof Framing) for information – rules & tables for Underpurlins Note:Find rules relating to Underpurlins Page 84, Rule 7.2.10 – Underpurlins Page 104, Rule 7.3.12 - Size of Underpurlins Span Table 28 of Supplements 7.2.10 7.3.12 28 Refer Table 28 – Continuous Span - for allowable span to Underpurlin (Rafter spacing = 1200, RLW = 2100 & Roof Mass = 10Kg/m 2 ) Determine allowable Max. Span for Underpurlin size 140 x 70 from Table 28

62. We must interpolate between a RLW of 1800 & 2700 Continuous Span 1800 21002700 5600 ? 4600

63. We must interpolate between a RLW of 1800 & 2700 1800 21002700 5600 ? 4600 300/900 = x/1000

64. We must interpolate between a RLW of 1800 & 2700 1800 21002700 4900 ? 4300 300/900 = x/600 X = 333 ? = 4567

65. 7. Obtain information for Under purlins MemberRule/TableSizeComments Underpurlin RRTRRT 140 x 70 Span Direct from Span Tables of Supplements. Max. Span = Check section 7 (Roof Framing) for information – rules & tables for Underpurlins Note:Find rules relating to Underpurlins Page 84, Rule 7.2.10 – Underpurlins Page 104, Rule 7.3.12 - Size of Underpurlins Span Table 28 of Supplements 7.2.10 7.3.12 28 Refer Table 28 – Continuous Span - for allowable span to Underpurlin (Rafter spacing = 1200, RLW = 2100 & Roof Mass = 10Kg/m 2 ) Determine allowable Max. Span for Underpurlin size 140 x 70 from Table 28 4.567m

66. 8. Obtain information for Struts (Roof Strutting) MemberRule/TableSizeComments Struts RRTRRT or Straight Strut Length = Fan Strut Length = Check section 7 (Roof Framing) for information – rules & tables for Struts Note:Find rules relating to Struts Page 87, Rule 7.2.15 – Roof Strutting & Page 90, Rule 7.2.15.3 Fan Struts. 7.2.15 7.2.15.3 From Prelim. Calcs. Fill in lengths for straight & fan struts.

67. 8. Obtain information for Struts (Roof Strutting) MemberRule/TableSizeComments Struts RRTRRT or Straight Strut Length = Fan Strut Length = Check section 7 (Roof Framing) for information – rules & tables for Struts Note:Find rules relating to Struts Page 87, Rule 7.2.15 – Roof Strutting & Page 90, Rule 7.2.15.3 Fan Struts. Page 109, Rule 7.3.17 - The size of Miscellaneous roof members shall be determined from Table 7.6 7.2.15 7.2.15.3 7.6 From Prelim. Calcs. Fill in lengths for straight & fan struts. Using Table 7.6 Determine section size of Struts – (Sheet Roof)

68. 8. Obtain information for Struts (Roof Strutting) MemberRule/TableSizeComments Struts RRTRRT or Straight Strut Length = Fan Strut Length = Check section 7 (Roof Framing) for information – rules & tables for Struts Note:Find rules relating to Struts Page 87, Rule 7.2.15 – Roof Strutting & Page 90, Rule 7.2.15.3 Fan Struts. Page 109, Rule 7.3.17 - The size of Miscellaneous roof members shall be determined from Table 7.6 7.2.15 7.2.15.3 7.6 From Prelim. Calcs. Fill in lengths for straight & fan struts. 1.211m 1.713m Using Table 7.6 Determine section size of Struts – (Sheet Roof)

69. 8. Obtain information for Struts (Roof Strutting) MemberRule/TableSizeComments Struts RRTRRT Straight Strut Length = Fan Strut Length = Check section 7 (Roof Framing) for information – rules & tables for Struts Note:Find rules relating to Struts Page 87, Rule 7.2.15 – Roof Strutting & Page 90, Rule 7.2.15.3 Fan Struts. Page 109, Rule 7.3.17 - The size of Miscellaneous roof members shall be determined from Table 7.6 7.2.15 7.2.15.3 7.6 From Prelim. Calcs. Fill in lengths for straight & fan struts. 1.211m 1.713m Using Table 7.6 Determine section size of Struts – (Sheet Roof) 90 x 45 2/90x45

70. 9. Obtain information for Strutting Beams MemberRule/TableSizeComments Strutting Beams Supporting roof & Ceiling Loads. Use: Hyspan LVL Location Span Spacing Living/Dining Living/Family Use Hyspan LVL Span Tables for Residential Building Calculate spans for strutting beams from floor plan

71. Beam to Living/Dining span = 3.690 Beam to Living/Family span = 3.500 Floor Plan Class Exercise 1

72. 8. Obtain information for Strutting Beams MemberRule/TableSizeComments Strutting Beams Supporting roof & Ceiling Loads. Use: Hyspan LVL Location Span Spacing Living/Dining Living/Family Use Hyspan LVL Span Tables for Residential Building Calculate spans for strutting beams from floor plan Fill in span information 3.690 3.500 Spacing as per plan Centre Off Centre 3.690 / 2.740 Determine table numbers from Hyspan LVL tables to select beam section sizes

73. Use table 17 for Beam To Living/Dining - Span = 3.690 Supporting Underpurlins & Ceiling Joists Go to Table 17 for member size

74. RLW = 2.100 Span = 3.690 Beam Size = 170 x 63

75. 8. Obtain information for Strutting Beams MemberRule/TableSizeComments Strutting Beams Supporting roof & Ceiling Loads. Use: Hyspan LVL Location Span Spacing Living/Dining Living/Family Use Hyspan LVL Span Tables for Residential Building Calculate spans for strutting beams from floor plan Fill in span information 3.690 3.500 Spacing is centre of rooms Centre Off Centre 3.690 / 2.740 Determine table numbers from Hyspan LVL tables to select beam section sizes Fill in Data for Living/Dining Beam T 17 170 x 63

76. Use table 18 for Beam To Living/Family - Span = 3.500 Supporting Underpurlins & Hanging Beams Go to Table 18 for member size

77. RLW = 3.215 Span = 3.500 Beam Size = 2/170x36

78. 8. Obtain information for Strutting Beams MemberRule/TableSizeComments Strutting Beams Supporting roof & Ceiling Loads. Use: Hyspan LVL Location Span Spacing Living/Dining Living/Family Use Hyspan LVL Span Tables for Residential Building Calculate spans for strutting beams from floor plan Fill in span information 3.690 3.500 Spacing is centre of rooms Centre Off Centre 3.215 Determine table numbers from Hyspan LVL tables to select beam section sizes Fill in Data for Living/Dining Beam T 17 170 x 63 Fill in Data for Living/Family Beam T 18 2/170x36

79. Part A can now be completed. On the plan supplied clearly mark all Hanging Beams, Underpurlins and any Strutting Beams & / or Special Strutting Beams supporting Roof and Ceiling loads.

80. Strutting Hyspan Strutting Beams Hanging Beams Under Purlins xx x xx x x x

81. Class Exercise 1 – Now Complete