1. Housing Retrofit
PRELIMINARY COST ESTIMATION

2. For this building… (10 units)
First floor
Second floor
Front
26’
175’

3. LIST of INTERVENTIONS
• Scaffolding
• Drop Cloth
• Facade Cleaning
• Biocide (mold removal)
• Foundation Drainage
• New Fixtures
• New Roof
• New Wooden Porch
• New Rainwater Recovery System
• Tympanum Demolition
• Acoustic Isolation
• Indoor re-painting

4. SCAFFOLDING AND DROP CLOTH
Cost: 8,420 $

5. FACADE CLEANING AND BIOCIDE
The aim is to
eliminate the mold
and prevent it in
the future
Cost: 44,660 $

6. FOUNDATION DRAINAGE
BEFORE AFTER
Cost: 39,120 $

7. NEW FIXTURES
BEFORE
AFTER

8. WHAT DOES IT MEAN?
•More light
•More air and ventilation
•No mosquitos
COST: 33,690 $

9. DEMOLITION OF THE TYMPANUM
AND ROOF RENOVATION
COST: 140,110 $

10. RAINWATER RECOVERY SYSTEM
BEFORE AFTER
Reducing water dispersion on the soil and possibility of
reusing water for cleaning and gardening
COST : 15,850 $

11. RECYCLE
SOME DATA ABOUT
GATHERING FROM
ROOF

12. SOUND PROOF
BEFORE AFTER

13. BENEFIT : acoustic isolation
DISADNVATAGE: reducing space of the
room about 2.36 inch
What do you think about it?
Would it be ok?
COST: 62350 $

14. WOODEN PORCH
BEFORE
AFTER
•Small
•Anonymous
•Bigger
•Customize with
colors and plant
COST: 19680 $ (*)

15. INDOOR REPAINTING
BEFORE AFTER
Porous paint
mold
COST: 7,540 $ (*)

16. Look at:
– WOODEN PORCH 19680 $ (*)
– INDOOR REPAINTING COST: 7,540 $ (*)
(*) we are saving money
considering that inhabitants
could be actively engaged in
the retrofitting (e. g.
repainting)

17. TOTAL COST FOR BIGGER BUILDING
About 376,000 $
About 37,600 $ PER unit