our client is building a high$-$end energy$-$efficient home on the ocean in West

Vancouver, BC$.$ He has retained you to design and detail selected building enclosure

assemblies and details. You have also been asked to perform a design heat$-$loss

calculation to assist the mechanical engineer with the heating system$$s sizing.

This project$$s standards are above the minimum BC Building Code requirements to meet

the client$$s energy efficiency requirements. The following minimum thermal and

material specifications apply and serve as targets for your design:

$$ Walls, Above Grade: R$-30$ effective

$$ Walls, Below Grade: R$-25$ effective $($use above grade values if sloped site$)$

$$ Slab on Grade: R$-20$ insulation, full slab coverage

$$ Suspended Floors $($i$.$e$.$ at overhanging walls$),$ R$-30$ effective

$$ Attic Roofs: R$-60$ effective

$$ Sloped Cathedral Roofs: R$-40$ effective

$$ Roof Decks: R$-40$ effective

$$ Windows: R$-6\mathrm{.}67($U$-0\mathrm{.}15)($Triple glazing, two Low$-$E coatings, argon fill, non$-$

conductive frames$).$ The selection is covered in Part $2.$

$$ Overall House Airtightness of less than $2$ ACH$50($average $0\mathrm{.}30$ ACH at natural

stack pressures$)$

Assignment #$32$ of $4$

$$ The house claddings consist of standard cement stucco $(7/8)$ and cultured stone

veneer $(1(1)/(2)).$ The roofing consists of a standing seam zinc metal roof. The decks

will be concrete pavers as denoted on the drawings.

PART $1$: Assembly Design and Basic Detailing

Using the provided $11$ x $17$ architectural drawings; design and draw the selected

building enclosure assemblies and section detail for the following areas of the house.

Include the critical barriers, materials, assembly analysis spreadsheet write up and

calculations for R$-$value $($or reference$)$ as well as a discussion of each detail. Indicate the

critical barriers and materials on each of the drawings.

$1.$ Above Grade Wall Assembly $(10$ marks$)$

$2.$ Below Grade Wall Assembly $(5$ marks$)$

$3.$ Metal Roof Sloped Roof Assembly $(10$ marks$)$

$4.$ Roof Deck Assembly $(10$ marks$)$

$5.$ Below Grade Floor Slab Assembly $(5$ marks$)$

$6.$ Detailed Building Enclosure Section from Below Grade Floor to Roof Including

Window and Floor Interfaces. Ensure the window details are for you chosen

window frame selected in Part $2(30$ marks$).$

You will determine how to conceptually attach the cladding and roofing to the structure

using standard industry practices with your chosen assemblies. Include this in your

discussion and with the appropriate assemblies.

You will find that the architectural drawings are incomplete, and it is up to you to

determine where the insulation should be best placed and what product it is$,$ and what

materials would be required for air, vapour, moisture flow control in each assembly. Use

what you have learned in class, plus the additional course material. Use appropriate

design tools $($i$.$e$.$ vapour diffusion spreadsheet or other reference material and

textbooks$)$ to assist in the design of your assemblies and details. You will be marked on

the suitability of your design to meet the client$$s needs $($project specification$)$ and

climate