SPRAYFOAM Professional - Fall 2017 - 44

with a scale capable of measuring in
fractions of grams and a clear container
marked in milliliters. Open cell foam also
uses the scale, but we would calculate
that volume by multiplying the width,
length and height of the sample and
using the formula:
Weight in grams ÷ volume in cubic
inches = x multiplied by 3.18 to convert
to pounds per cubic foot.
The sample must be trimmed to
represent even measurements. Next,
record volume measurements, weigh
the sample on gram scale to the nearest tenth of a gram and divide weight
by volume (cubic inches length x width
x height). Take this value and multiply by 3.81 to convert to pounds per
cubic foot. A step-by-step procedure
for measuring SPF density can be found
in Section 6.1 of the SFC Guidance on
Sampling Techniques for the Inspection
of Installed SPF.1
Compressive strength can be measured using the thumb test or more
accurately by using a field compression
tester such as a Com-Ten Compression
Tester for spray foam testing.2 This field

test equipment can provide results comparable to ASTM D1621.
We can visually observe cell structure or use an optical comparator for
close observation. When installing
coating over the foam, an optical comparator is essential for measuring dry
film coating thickness.Finally, a thermal
imaging camera can often detect areas
that were missed by the applicator or
where the foam has gaps or voids. This
may augment your jobsite observation
inspection and recorded notes.
Remember to record the measurements
in your daily log for future reference.
Most of the tools listed above are
relatively low cost with the exception
of the thermal imaging camera3 and the
field compression tester. But, when considering the number of projects annually, the cost of these tools - ranging
from $4000 to $5000 - is a relatively
small price to pay for ensuring better
quality foam on your next job. o
Written by Mason Knowles with contributions from Jim Andersen, Henri
Fennell, Rick Duncan and Mac Sheldon.

Reference Documents: Guidance
on Sampling Techniques for the
Inspection of Spray Polyurethane
Foam.
The SPFA Consultant Committee
is comprised of many professionals from different walks of the SPF
world. They benefit from your input,
and use it to craft future guidance
on issues important to you, the SPF
professional. If you have feedback,
or even better, questions related to
this or another SPF issue, please send
an email to info@sprayfoam.org for
them to consider! Make the subject
line: Consultant Committee Question.

(Footnotes)
1

2
3

https://polyurethane.americanchemistry.com/
Spray-Foam-Coalition/Guidance-on-SamplingTechniques-for-the-Inspection-of-InstalledSpray-Polyurethane-Foam.pdf
http://www.com-ten.com/on-site-testingspray-applied-polyurethane-foam.html
There are some newer models of IR cameras
that attach to smartphones. The capabilities of
these new low cost IR cameras (less than $150$250) are generally suitable for performing a
qualitative check of a SPF installation.

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44 SPRAYFOAM
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| Fall 2017


https://polyurethane.americanchemistry.com/Spray-Foam-Coalition/Guidance-on-Sampling-Techniques-for-the-Inspection-of-Installed-Spray-Polyurethane-Foam.pdf http://www.com-ten.com/on-site-testingspray-applied-polyurethane-foam.html http://www.smartchoiceir.com http://www.schmidtanddirksdesigns.com http://www.sprayfoamsupply.com

Table of Contents for the Digital Edition of SPRAYFOAM Professional - Fall 2017

Executive Director’s Corner
President’s Post
Foam Business News
Spfa Today – Membership News & Numbers
Legislative Update
Verdical Group’s 4th Annual Net Zero 2017 Conference: Energy + Water + Waste
An Expanding Business: Spray Foam Offers Interesting Opportunities for Sidelines
Can It Be Saved? Common Spray Foam Issues From Processing and Installation
The Evolution of the PCP Modifications and Improvements Through the First Five Years
2017 SPFA Contractor Awards
Discipline, Passion and Grit
Ask the Expert
Upcoming Events
Index of Advertisers | advertisers.com
SPRAYFOAM Professional - Fall 2017 - intro
SPRAYFOAM Professional - Fall 2017 - cover1
SPRAYFOAM Professional - Fall 2017 - cover2
SPRAYFOAM Professional - Fall 2017 - 3
SPRAYFOAM Professional - Fall 2017 - 4
SPRAYFOAM Professional - Fall 2017 - 5
SPRAYFOAM Professional - Fall 2017 - 6
SPRAYFOAM Professional - Fall 2017 - Executive Director’s Corner
SPRAYFOAM Professional - Fall 2017 - 8
SPRAYFOAM Professional - Fall 2017 - President’s Post
SPRAYFOAM Professional - Fall 2017 - 10
SPRAYFOAM Professional - Fall 2017 - 11
SPRAYFOAM Professional - Fall 2017 - Foam Business News
SPRAYFOAM Professional - Fall 2017 - 13
SPRAYFOAM Professional - Fall 2017 - Spfa Today – Membership News & Numbers
SPRAYFOAM Professional - Fall 2017 - 15
SPRAYFOAM Professional - Fall 2017 - 16
SPRAYFOAM Professional - Fall 2017 - Legislative Update
SPRAYFOAM Professional - Fall 2017 - Verdical Group’s 4th Annual Net Zero 2017 Conference: Energy + Water + Waste
SPRAYFOAM Professional - Fall 2017 - 19
SPRAYFOAM Professional - Fall 2017 - An Expanding Business: Spray Foam Offers Interesting Opportunities for Sidelines
SPRAYFOAM Professional - Fall 2017 - 21
SPRAYFOAM Professional - Fall 2017 - 22
SPRAYFOAM Professional - Fall 2017 - 23
SPRAYFOAM Professional - Fall 2017 - 24
SPRAYFOAM Professional - Fall 2017 - 25
SPRAYFOAM Professional - Fall 2017 - Can It Be Saved? Common Spray Foam Issues From Processing and Installation
SPRAYFOAM Professional - Fall 2017 - 27
SPRAYFOAM Professional - Fall 2017 - 28
SPRAYFOAM Professional - Fall 2017 - 29
SPRAYFOAM Professional - Fall 2017 - The Evolution of the PCP Modifications and Improvements Through the First Five Years
SPRAYFOAM Professional - Fall 2017 - 31
SPRAYFOAM Professional - Fall 2017 - 2017 SPFA Contractor Awards
SPRAYFOAM Professional - Fall 2017 - 33
SPRAYFOAM Professional - Fall 2017 - 34
SPRAYFOAM Professional - Fall 2017 - 35
SPRAYFOAM Professional - Fall 2017 - 36
SPRAYFOAM Professional - Fall 2017 - 37
SPRAYFOAM Professional - Fall 2017 - Discipline, Passion and Grit
SPRAYFOAM Professional - Fall 2017 - 39
SPRAYFOAM Professional - Fall 2017 - 40
SPRAYFOAM Professional - Fall 2017 - 41
SPRAYFOAM Professional - Fall 2017 - 42
SPRAYFOAM Professional - Fall 2017 - Ask the Expert
SPRAYFOAM Professional - Fall 2017 - 44
SPRAYFOAM Professional - Fall 2017 - Upcoming Events
SPRAYFOAM Professional - Fall 2017 - Index of Advertisers | advertisers.com
SPRAYFOAM Professional - Fall 2017 - cover3
SPRAYFOAM Professional - Fall 2017 - cover4
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