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MAKE WINDOW OPENING AND COVER WITH
PLASTIC AS IN STEP 6. BEFORE NAILING WALLS
TO STUDS, FILL CAVITY BELOW WINDOW WITH
LOOSE INSULATION.

•2 pcs.plywood 125/₈” x 36½”
•2 pcs.plastic sheet 7”x 13”
•Loose insulation- enough to fill

NAIL CEILING SUPPORTS ON INSIDE WALLS
(align bottom edges with top of window opening).

• 2 pcs. furring 32¼"long
• 2 pcs.furring 12¾”long

PLACE CEILING ON SUPPORTS

•1pc. plywood 14”x 32”(cut from center of 22”x 40” panel)

NAIL HANDLE GRIPS ON END WALLS

• 2 pcs.furring18½”long

And that completes the basic structure. At this point, you’re just about ready to weatherize the house. But before you do, you’ll have to check the thermal efficiency of the model as it now stands. So...

QUICKIE EXPERIMENT “D”
Testing the Unweatherized House

This quickie experiment won’t be all that quick. But

it will be easy. Put six ice cubes in a saucer and set the
saucer on the floor inside the model house.

Replace the ceiling, noting the time on the clock.
Periodically look through the plastic window to check
the ice. When it has all melted, jot down how long the
melting required.