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Challenge Question Number 1 for Inspector #1213

Clearly describe what you expect from the students:
1. What is the difference between paint and protective coatings?
2. Is paint always ready to use right out of the can?
3. What criteria should be considered when deciding on the appropriate paint or coating for a specific job?
4. What is the most efficient paint to use on the exterior of a house (50’x60’x9’ high) and why?
-Do not take out area for doors, windows or vents
-Round to nearest whole number of gallons

Paint type	Coverage	Cost p/gallon
5 yr warranty	300 sf/gal	$10
6 yr warranty	250 sf/gal	$12
10 yr warranty	300 sg/gal	$15
10 yr warranty	250 sf/gal	$18
20 yr warranty	200 sf/gal	$23

Assume: 1) Customer will live in the house for 10 years
2) Customer will live in the house for 20 years

In order to give the teacher some guidance in evaluating the student's project(s); list some tips that may help to assess the student's work:
1.& 2. The difference between paint and protective coatings: Industrial coverings are usually referred to as "protective coatings" because they are composed of 2,3,or 4 part systems. They are not used right out of the can.
How to determine which paint or coating is right for a job:
1) Environment
2) Regulations (government and/or client)
3) Cure or drying time
4) Application method—spray, rolled, brushed
5) Cost
6) Warranty
7) Length of intended habitation in the building
Solution to mathematics:
5 yr warranty, 300 sf/gal, $10 = $3,600
6 yr warranty, 250 sf/gal, $12 = $3,888
10 yr warranty, 300 sg/gal, $15 = $2,700
10 yr warranty, 250 sf/gal, $18 = $3,888
20 yr warranty, 200 sf/gal, $23 = $3,105
Students should discuss which paint is most appropriate based on the length of time the customer plans to live in the dwelling.