2. Finishes many options Walls wood shakes, shingles, board & batten (vertical), plank lap (horizontal), T1-11 ply, vinyl, fiber cement, aluminum, stucco.& .Brick (masonry) shown above Roofs wood shakes, shingles, asphalt shingles, metal standing seam or corrugated, clay or cement tile, slat, single ply at flat roof....

3. System to Remove water Gutters / Roof Drains (Leaders) or Down Spouts DS. French drains (gravel trench) w/ Rain chains

4. * Details Weather protection – a Moisture System
insulation (& V.B. vapor barriers)
sheathing
weather barriers
Venting
Flashing
Cladding (finish material) *

5. Detail Layers-of weather barrier System
Vapor Barrier
Insulation
Sheathing
Moisture Barrier
Flashing
Siding

6. Flashing
often a soft metal that can cover the gap and direct water away from wall or roof
used at intersections (and/or with a Drip edge)

7. 1” AIR GAP
*Rain-screen* ...Air cavity keeps siding away from wall framing allows moisture to dry

8. Brick veneer on wall is a rain screen8

9. ...at window head and at sloped sill
Flashing
...at window head and at sloped sill
[Window in section view]

10. Frame
Building Section

11. Weather Protection System
Walls & Roof
Insulation (w/V.B. vapor barriers)
Sheathing (OSB - CDX ply.)
Weather or Moisture barriers
Venting (air space / dry moisture)
Flashing (water away & drip edges)
Cladding (finish material) *

12. Insulation (with V.B. vapor barriers)
...In the Walls
Plumbing, electrical &
Insulation (with V.B. vapor barriers)

13. Insulation (& V.B. vapor barriers)
Attic
1. Air gap for venting
b/w insulation & sheathing
6. Roofing felt or MB (moisture barrier)
2. & 4. Insulation (batt or rigid)
3.Vapor barrier (on warm side of wall or roof)
5.Drywall Finish wall
6. MB
7. Roof (shakes)
Insulation (& V.B. vapor barriers)

14. * Insulation Resists heat/air infiltration =
Insulation Symbol is a
Looping line for Blanket
or batt insulation
Rigid Insulation Symbol
is criss-cross lines
Insulation Resists heat/air infiltration =
R value (the higher the # the better) *

15. Why are these numbers highest at roof?
R 38 at ceiling or rafters
R 21 in walls
R 30
at floor
Energy Code
Why are these numbers highest at roof?

16. Header with Rigid Insulation
* energy saving
Types of Insulation Material : Batts or blankets or blown or Rigid (at Header over door) or foam expanding insulation

17. Insulation location : Attic ..most critical area (as heat rises)
CRUSH LESS INSUL.
Insulation location :
Attic ..most critical area (as heat rises)
Exterior walls
Floors - separating unheated from heated areas
[doors & window - insulated & with weather stripping]

18. Weather protection system = enclose house
Isometric of an exterior wall with CLAPBOARD SIDING
...on the walls
Weather protection system = enclose house

20. (Shakes which are more random because they are split wood )
Type of Siding: noted on elevation dwgs. Seen in section dwg. fianl layer
Wood Shingles or
(Shakes which are more random because they are split wood )

21. (Shakes which are more random because they are split wood )
Type of Siding:
Wood Shingles or
(Shakes which are more random because they are split wood )
Shiplap wood siding
Stucco

22. *
Shingles
Beveled Clapboard siding
Or board & batten

23. Flashing at Roof
Stepped
overlapped
* energy saving

24. ….on CMU or on wood framing –most common
Brick Wall (Masonry)
….on CMU or on wood framing –most common

25. END OF LECTURE *