Roofs .

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

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

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

. 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. * .

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. .

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

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

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 *

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

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

Walls Roof Framing Framing Contractor familiar with Common Shapes for roofs

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

Walls Roof Plan is different than Roof Framing Plan -

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

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

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

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

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

* 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

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