Finishes many options Walls wood shakes, shingles, board & batten (vertical), plank lap...

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....

System to Remove water

Gutters / Roof Drains

(Leaders) or Down Spouts DS.

French drains (gravel trench) w/ Rain chains

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Details

Weather protection – a Moisture System

•insulation (& V.B. vapor barriers)•sheathing•weather barriers•Venting•Flashing•Cladding (finish material)

Detail Layers-of weather barrierSystem

Vapor Barrier InsulationSheathingMoisture BarrierFlashingSiding

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)

*Rain-screen*...Air cavity keeps siding away from wall framing allows moisture to dry

1” AIR GAP

8

Brick veneer on wall is a rain screen

Flashing...at window head and at sloped sill

[Window in section view]

Frame

Building Section

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Weather Protection SystemWalls & 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)

...In the

Walls

Plumbing, electrical & Insulation (with V.B. vapor barriers)

Insulation (& V.B. vapor barriers)

Attic1. Air gap for ventingb/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)

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Insulation Resists heat/air infiltration = R value (the higher the # the better)

Insulation Symbol is a Looping line for Blanketor batt insulation

Rigid Insulation Symbol is criss-cross lines

R 38 at ceiling

or rafters

R 21 in walls

R 30at floor

Energy Code

Why are these numbers highest at roof?

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energy saving

Types of Insulation Material : Batts or blankets or blown or Rigid (at Header over door) or foam expanding insulation

Header with Rigid Insulation

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

CRUSH LESS INSUL.

...on the walls

Weather protection system = enclose house

•Isometric of an exterior wall with CLAPBOARD SIDING

Type of Siding: noted on elevation

dwgs. Seen in section dwg. fianl

layerWood Shingles or

(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

*Shingles

Beveled Clapboard siding

Or board & batten

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energy saving

Flashing at Roof

Steppedoverlapped

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

END OF LECTURE

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