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49 Cards in this Set

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  • Back
1. What is the standard for framing materials?
Wood wall framing – load bearing dimension lumber identified by a grade mark of lumber grading or inspection agency that has been approved (r602.1) and Steel wall framing – load bearing steel wall framing members shall comply with dimensions and thicknesses.(r603.2) and Wood structural panels (r604) and Masonry (r606) and ICF (r611)
2. What is the maximum moisture content for framing materials?
19 % or less for lumber, 15% or less for wood structural panels before use(R802.1.3.5)
3. What is the tie down rating we have to have for rafter ties?
20lbs psf. (R802.11.1)
4. If I have a girder truss, ceiling joist are required to overlap how many inches over the top of a support girder?
Ends of ceiling joists shall be lapped a minimum of 3” or butted over bearing partitions or beams and toenailed to the bearing member (r802.3.2)
5. There are span tables in chapter 8, what kind of information do you see in it?
Species and grade of lumber, rafter spacing, ground snow load = 30psf, ceiling not attached to rafters, (P 226)
6. What are the rules for Bridge spacing?
2x12 not exceeding 8’, having a depth to thickness ratio exceed 6 to 1 on nominal dimensions(R802.8.1)
7. Joist header has to be doubled when the span opening of the floor assembles reaches what dimension?
8. What the min. thickness of lumber you can use for roof sheathing?
5/8” (R803.1)
9. What is the ratio we use for roof ventilation in the attic?
1-150 of the area of space ventilated, except that the total area is permitted to be reduced to 1 to 300, provided at least 50% and not more than 80% of the required ventilating area is provided by ventilators at least 3’ above eave or cornice vents.(R806.2)
10. Combustible insulation in the attic, how far do we need to keep it from recess lights?
3inches (R808.1)
11. According to the IRC asphalt shingles can be installed on a roof at what minimum pitch?
2:12 (R905.2.2)
12. Asphalt shingles, how many nails in the minimum you can use
Not less than four fasteners per strip shingle or two fasteners per individual shingle. (R905.2.6)
13. Ice protection, were talking winter guard, snow and ice shield.
Roof decks shall be covered with approved materials, flashings shall be installed to prevent moisture in wall and roof intersections, wherever there is a change in roof slope or direction, and around roof openings (r903) or in areas where the average daily temp in January is 25º or less, and ice barrier that consists of at least 2 layers of underlayment cemented together or of a self-adhering polymer modified bitumen sheet shall be used in lieu of normal underlayment and extend from the eave’s edge to a point of at least 24” inside the exterior wall line. (r905.2.7.1)
14. Minimum width the chimney a cricket or saddle on a chimney…it is required when it gets to a certain width…what is that width?
15. What is the minimum slope you can have on a metal roof?
3:12 (R905.4.2)
16. What is the minimum slope of a Slate roof?
4:12 (905.6.2)
17. Open valleys can be built with 90pds of roofing, how many layers?
2, bottom shall be 18”, top shall be a min. of 36” wide (r905.2.8.2 (2))
18. Single ply membrane roofing, what is the min. slope?
One-fourth unit vertical in 12 units (R905.13.1)
19. Can we re-roof over two layers of shingles?
No (R907.3)
20. What the min. foundation we have to use for a chimney
12” thick and at least 6” beyond each side of the exterior dimensions of the chimney. (R1001.1.1)
21. Chimney shall extend above the roof how far? 3-2-10 rule?
3’ at roofline and 2’ at 10’ (Table R1003.1)
22. The wall of a chimney’s min. thickness?
4” nominal thickness (R1001.7)
23. Concrete chimney, can we put a double flue in that same hole?
YES (1001.10)
24. What’s the minimum size for a clean out?
6” (R1001.14)
25. What’s the air space clearance for combustible chimney’s?
2” (R1001.15)
26. Does our code book give detail drawing of a proper chimney?
27. If we have combustion air from the outside to our chimney, what is the min. size of that air passageway bringing air into the chimney?
The combustion air passageway shall be a min. of 6 square inches, and not more than 55 square inches. (r1005.4)
28. Energy, do we have insulation standards for every county in the state?
29. Crawl space, what is the insulation required for it?
R-20 (mi uniform energy code)
30. Ceilings, walls, floors…what are the basic requirement for our area?
R-21 (muec)
31. Windows and doors have to meet a min. insulation required. Do they have to provide some warmth?
Yes, u=.35, r=2.85 (muec)
32. If we have a heating and cooling unit, do we have to have a thermostat?
33. What is the lowest R-value allowed in walls in Michigan?
R-21 (muec)
34. Mechanical appliances, is it important that we have a min. requirement on all standard appliances…energy star
Yes (m1303)
35. Appliances shall be accessible for servicing of a min. working space of what?
36. Furnaces must have what clearance all the way around it?
37. Appliances in a basement shall have an unobstructed passageway to them of what size?
24” wide and large enough to allow removal of the largest appliance in the space, provided that a level service space of not less than 30 inches deep.
38. Appliances in attic will have a service opening of what size?
20” by 30”
39. Appliances having an ignition source…how high do they need to be off the floor?
40. Appliances combustible shall have a air space of at least X where the clearance is allowed to be reduced?
41. Combustion air, where do we get it, can we get it from a bathroom?
It can be obtained from infiltration when the room or space has a volume of 50 cubic feet pre 1,000 BTU. No it cannot be used in a bathroom, sleeping rooms and toilet rooms.
42. If we have refrigerated piping or cold-water piping, should it be wrapped?
Yes (p2603)???
43. Floor registers, where do we put them?
Floor registers located in room or spaces containing water closets shall be located a min. of 3’ away (m1601.3.9)
44. How do we take care of the condensation from water cooler?
A steel pan having a min. thickness of 24 gauge. Not less than 1.5 inches. (P2801.5) pg. 385
45. Evaporative coolers, how do we position them?
A level platform or base not less than 3” above the ground and secured to prevent displacement (m1413.1)
46. Fireplace stoves, do they require a factory label?
47. An insulated concrete form that has 2” of polystyrene on each side and filled with 5.5 inches of concrete has an insulated value of what?
48. Roofing felt, do we have to have it on our roof and why?
Yes, to help prevent bulk moisture intrusion.
49. What is one of the common mistakes we make when putting shingles on our roof?
Felt paper is a must. Roofers that fail to use it under asphalt shingles are making a big mistake.