1. Roofs .

2. Exterior Walls in Elevation: see Materials & Bldg. shape12 8
Exterior Walls in Elevation: see Materials & Bldg. shape
Roof is 8:12 Pitch /or slope Cladding is drawn as Brick & Stucco siding

3. Rafters Roof framing supports - give roof profile/shape
Pitch/slope ratio - every 12” out raise the rafter 5”or 5:12
A Rafter & ceiling joist system maybe substituted for ...A System of …
Roof Trusses.
Roof slope
Bear

4. Walls Wall & Roof Framing
Rarely seen drawn out completely in a working drawing set!
need to clarify a construction condition...Use a DETAIL
Like at the
Eave Rake or Ridge of Roof

5. . Details * focus in from general to the specific condition
drawn in orthographic
(2-D) Bldg. Section
Details:
Roof detail of eave
Roof detail would be at ridge Rake wall. * .

6. Joists or trusses in a Dwg Set. :
1st floor joists found on foundation plan or separate 1st fl. Framing plan
2nd floor maybe on first floor plan
Roof trusses or ceiling joist maybe on 2nd floor plan. .

7. Walls
....Here are Headers(HDR) on a Roof Framing plan even though they are part of the Wall Framing
Plan shows the Roof truss layout

8. Walls Wall Framing Tilting up the wall from the platform framing
....(here a Roof’s Rake Wall goes up.)
Walls
Sheathing

9. Structural info need to know for Roof and wall framing. headers
Structural info need to know for Roof and wall framing *headers *brace panels *bearing walls *spacing/size/span of roof truss or rafters ceiling joist *

10. Roof framing *headers *spacing/size/span of roof truss or rafters ceiling joist

11. Roof Framing – Basic components
Rafters Ridge beam Eaves Hips collar-ties & ceiling joists overhangs & Rake wall valleys … p.129
Roof Framing – Basic components

12. Walls
Roof Framing
Framing Contractor familiar with Common Shapes for roofs

13. Walls
Roof Framing sometimes drawn to show a complex roof System …most of the time ceiling joist laid over 2nd floor plan

14. Walls
Roof Plan is different than Roof Framing Plan -

15. pic of platform & balloon Walls p.186 print reading for construction
Roof Framing Terms
Pitch to describe Slope or incline of roof Ratio b/w Horizontal run & Vertical rise
…a 6:12 roof (…means for every 12” rafter rises 6”)
Symbol is a“sideways” L with ratio (found on the bldg. section dwg.)
Roof slope
Bear

16. Roof Truss Shape of roof pitch W Truss – most common / engineered
Spans longer distances

17. Walls
W TRUSS
Roof Framing
Common Shapes of Roof Trusses & Framing

18. * Flat roofing system A Detail at bldg. edge “the curb”
....insulation is rigid (not batt) *

19. * Section The profile (or slope) of typical roof constructions
Insulation & ventilation key parts of enclosure system. *

20. * Cross Ventilation at roof prevents moisture build up
...want similar amount of air in as out (sim. temp.) air flowing across roof rafter. *
isometric view of eave venting

21. Walls Roof Framing -Eave Detail
Pictorial view -Isometric of Roof Lookout
Roof Framing -Eave Detail
shows how roof and wall meet ... venting & soffit