Subscribe
Sign in
Home
impact
Archive
About
Latest
Top
Discussions
The Building Tells You Everything If You Show Up
What Grand Central, an Abt study, and a 12.6% surge in input prices have in common.
Jun 25
•
Jon Weiskopf, PE
2
The Most Expensive Spreadsheet I Ever Built
In 2010 I had a notebook that I am still embarrassed about.
Jun 23
•
Jon Weiskopf, PE
1
The 25% Mystery I Couldn't Crack
The water bill jumped a quarter. The utility said it was us. My team said it was the utility.
Jun 18
•
Jon Weiskopf, PE
1
How Apple Killed the Glass That Was Supposed to Ship
Glass is probably the least efficient building material on planet earth.
Jun 16
•
Jon Weiskopf, PE
2
The Inspector's Report Is Now a Legal Document
California codified the F1 thesis. The rest of us still treat the report as a checkbox.
Jun 11
•
Jon Weiskopf, PE
3
Your HVAC Contractor Isn't Asking About Your Envelope. Here's Why.
Most operators I talk to are buying systems.
Jun 9
•
Jon Weiskopf, PE
3
The Money Behind the Walls
A utility worker showed up to shut off power I didn't know I was using.
Jun 4
•
Jon Weiskopf, PE
3
The Other Cost of the 'Clean' Inspection Report
subtitle here
Jun 2
•
Jon Weiskopf, PE
1
May 2026
The cost behind the line item
Your P&L showed the bill. Nobody was watching what was paying it.
May 28
•
Jon Weiskopf, PE
1
Why I've Been Quiet About What I've Been Building
For a year I've been packaging twenty years of building knowledge into something owners can actually use. Here's why.
May 26
•
Jon Weiskopf, PE
2
1
Why your capital might not be yours
The phone-call test that belongs in your pre-commit checklist.
May 21
•
Jon Weiskopf, PE
1
The Investor Who Just Wanted Someone to Pick Up
He didn't call for a return. He called because nobody else was answering.
May 19
1
This site requires JavaScript to run correctly. Please
turn on JavaScript
or unblock scripts
