---
title: Engineering Insights & Education (2)
description: "Make informed decisions: Discover cost breakdowns, processes, insights, and regulatory requirements for your next job. (2)"
image: https://legacyengineering.com/hubfs/Logos/legacy_engineering_horizontal_lockup_two_color_dark_rgb.svg
---

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 Knowledge Base

# Engineering Insights & Education

Your hub of useful and readily available content to help you make the best decisions on your next job. Explore cost breakdowns, processes, insights, and regulatory requirements for all of our offered services.

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[ Knowledge Base ](https://legacyengineering.com/knowledge-base) / Engineering Insights & Education

# Engineering Insights & Education Page 2

<https://legacyengineering.com/blog/what-is-floor-flatness-testing>

## What is Floor Flatness Testing?

 December 8th, 2023|2 min read

<https://legacyengineering.com/blog/do-i-need-a-fireproofing-inspection>

## Fireproofing Inspection: Do I need one?

 December 1st, 2023|2 min read

<https://legacyengineering.com/blog/how-do-i-fill-out-a-notice-to-building-official-document>

## Notice to Building Official Document: How do I fill it out?

 December 1st, 2023|2 min read

<https://legacyengineering.com/blog/what-is-the-value-of-private-provider-inspections>

## Private Building Inspections: Why go with a private provider?

 November 22nd, 2023|1 min read

<https://legacyengineering.com/blog/how-do-i-prevent-inspection-holds>

## How Do I Prevent Inspection Holds?

 November 17th, 2023|2 min read

<https://legacyengineering.com/blog/why-should-my-home-be-energy-star-certified>

## Why Should My Home be Energy Star-Certified?

 November 17th, 2023|2 min read

<https://legacyengineering.com/blog/what-is-the-new-coj-permitting-system>

## What is the New COJ Permitting System?

 November 10th, 2023|1 min read

<https://legacyengineering.com/blog/why-did-my-density-test-fail>

## Why Did My Density Test Fail?

 November 10th, 2023|1 min read

<https://legacyengineering.com/blog/do-i-need-a-proctor>

## Soil Compaction Testing: Do I need a proctor?

 November 3rd, 2023|2 min read

<https://legacyengineering.com/blog/how-can-a-private-provider-help-with-permitting-services>

## How Can a Private Provider Help with Permitting Services?

 November 3rd, 2023|1 min read

<https://legacyengineering.com/blog/how-do-i-fill-out-a-product-approval-information-sheet-or-pais>

## How Do I Fill Out a Product Approval Information Sheet, or PAIS?

 October 27th, 2023|1 min read

<https://legacyengineering.com/blog/do-my-plans-need-a-digital-signature>

## Digital Signature: Do my plans need one?

 October 27th, 2023|2 min read

<https://legacyengineering.com/blog/what-is-a-threshold-inspection>

## Threshold Inspections: Do I need one?

 October 23rd, 2023|2 min read

<https://legacyengineering.com/blog/what-is-a-duct-leakage-test>

## What is a Duct Leakage Test?

 October 20th, 2023|1 min read

<https://legacyengineering.com/blog/what-is-density-testing>

## Do I Need Density Testing?

 October 13th, 2023|1 min read

<https://legacyengineering.com/blog/what-are-deep-foundations>

## What are Deep Foundations?

 October 13th, 2023|1 min read

<https://legacyengineering.com/blog/do-i-need-a-valuation-report>

## Valuation Report: Do I need it? How do I write it?

 October 6th, 2023|1 min read

<https://legacyengineering.com/blog/what-is-a-slump-test>

## What is a Slump Test?

 October 6th, 2023|1 min read

<https://legacyengineering.com/blog/how-can-i-keep-my-inspection-costs-down>

## How Can I Keep My Inspection Costs Down?

 September 29th, 2023|2 min read

<https://legacyengineering.com/blog/do-i-need-a-blower-door-test>

## Blower Door Tests: Are they required?

 September 28th, 2023|2 min read

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