CF2R-ENV Forms: Installation Certificates for Windows, Insulation and Roofing
The envelope installation certificates are CF2R-ENV-01-E for fenestration, ENV-03-E for insulation and ENV-04-E for roofing radiant barrier, plus the rater-tested ENV-20-H, ENV-21-H and ENV-22-H. The installing trade signs each one. Only the three -H forms have a CF3R counterpart from an ECC-Rater.
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The six numbers in one pass
- ENV-01-E: fenestration installation.
- ENV-03-E: insulation installation.
- ENV-04-E: roofing, radiant barrier.
- ENV-20-H: building leakage diagnostic test.
- ENV-21-H and ENV-22-H: quality insulation installation (QII), framing stage and insulation installation stage.
The three -H forms each pair with a CF3R of the same number. The first three involve no rater test, so no CF3R follows. A separate set of CF1R worksheets sits on the design side; see the CF1R-ENV worksheets.
When an inspector reads them
The compliance manual has the inspector check window and skylight U-factor and SHGC at the rough frame visit, and insulation R-value against the CF1R at the insulation inspection, before drywall goes up. Insulation disappears behind drywall, so the agency may require its CF2R to be posted as soon as that portion is complete (Part 1, Section 10-103(a)3F). The insulation installer is better off signing the day the work ends than at final.
Do not peel the window label early
A manufactured window or exterior door carries a temporary label with its U-factor, SHGC and visible transmittance, and Section 110.6(a)5A says it may not be removed before the enforcement agency inspects. Those labelled values are what the CF1R and the ENV-01-E are measured against. A window without a usable label is covered in what happens if a window has no NFRC label, and the rating system itself in NFRC labels and window approval.
Posting and the owner's copy
The signed CF2R is posted at the job site, and when registration applies a registered copy goes to the homeowner. Registration applies whenever a CF3R is required, which is the case for the -H forms. For insulation quality, the rater's side is explained in quality insulation installation.
Who signs which
The window installer, insulation contractor and roofer each sign for their own scope, or a builder may sign for a subcontractor it hired while the subcontractor stays responsible. The page on who completes CF2R forms sets out delegation, the CF2R overview the family, and our residential service covers the CF1R for the same job.
Common Title 24 Questions
- What is a CF1R certificate of compliance?
- What is a CF2R certificate of installation?
- What is a CF3R certificate of verification?
- What is an NRCC form?
- What is an NRCA certificate of acceptance?
- What is an LMCC form?
Frequently Asked Questions
Possibly. For alterations without field verification, such as window replacement, the building department may require no certificate of installation or a simplified one, so ask it first.
Only the -H forms: the building leakage test and the two quality insulation installation stages. The others are signed by the installer alone.
Explore CF2R: Certificate of Installation
- CF2R-MCH-01-E: The HVAC Installation Certificate Explained
- CF2R-SRA-01-E: The Solar Ready Certificate Explained
- What Is a CF2R Certificate of Installation?
- Contractor Left the Job: Who Signs the CF2R Now?
- How Do I Get a Copy of My CF2R?
View all CF2R: Certificate of Installation guides → · Forms and Certificates · Title 24 guide