Cf 1R Alt Form PDF Details

The CF-1R-ALT is a Prescriptive Certificate of Compliance form required for residential alterations in California. Property owners and contractors submit this form alongside a building permit application to document that the project meets Title 24 building energy efficiency standards established by the California Energy Commission. The form spans five detailed pages and addresses several categories of construction work on existing single-family and multi-family homes. For building envelope alterations, the CF-1R-ALT specifies prescriptive insulation values for opaque surfaces including walls, floors, and ceilings. It distinguishes between projects that open framed cavities to install new insulation and those involving complete replacement of structural assemblies, applying different requirements based on the climate zone. Fenestration alterations, including window and door replacements, must meet maximum U-factor and Solar Heat Gain Coefficient (SHGC) values set by the energy code. The form provides calculation sections for total fenestration area, allowed glazing area by orientation, and west-facing window limits tied to the dwelling's conditioned floor area. HVAC and water heating system replacements require documentation of minimum equipment efficiency ratings, duct insulation R-values, and refrigerant charge measurements. California requires that duct replacement projects meet specific sealing standards verified through diagnostic testing. Roofing product compliance, slab edge insulation, and thermal mass properties are also addressed in separate sections. The final section covers HERS (Home Energy Rating System) verification, where a certified HERS rater checks duct sealing performance, confirms correct refrigerant charge on new cooling equipment, and verifies that installed energy measures match the prescriptive values listed on the CF-1R-ALT. This third-party verification step is non-negotiable for most residential alteration projects that involve mechanical systems or duct modifications. Related compliance forms include the CF-1R-ALT HVAC form for space conditioning changes and the CF-1R-ALT-02 form for additional building component alterations.

QuestionAnswer
Form NameCf 1R Alt Form
Form Length5 pages
Fillable?No
Fillable fields0
Avg. time to fill out1 min 15 sec
Other names1ralt alterations online, cf1r form hvac, cf 1r certificate, cf1r certificate compliance

How to Edit Cf 1R Alt Form Online for Free

Filling out the CF-1R-ALT form online is simple with this PDF editor. Upload your compliance document, complete each required field, and download the finished form. No software installation is needed. Follow these steps to get started.

Step 1: Click the orange "Get Form" button above to open the editor and load your CF-1R-ALT form.

Step 2: Use the editor to fill in every required field. You can also add custom text, modify existing entries, upload images, and attach your signature to the form.

Complete each section of the compliance certificate with care. Double-check all entries before submitting your project documentation.

1. Start with the first section of the CF-1R-ALT form. Enter the project details, building permit number, and California climate zone. Accurate entries here ensure your form is processed without delays.

Filling out section 1 of cf1r prescriptive form

2. Move to the second section. Enter the wall assembly details, including insulation type (wood, metal, or mass construction), thickness values, and reference table numbers from the energy code. This section covers both furring strip assemblies and standard construction types.

Note For furred assemblies, Walls From Reference, and Joint Appendix Table in cf1r prescriptive form

Review each wall assembly entry before moving on. Errors in this section can delay your building permit approval.

3. The third section requires the HERS registration number for the project. Enter the registration number assigned by your certified HERS rater in each field.

Registration Number  Registration, Registration Number  Registration, and Registration Number  Registration inside cf1r prescriptive form

4. Section four covers the prescriptive compliance certificate details. Enter the climate zone, number of stories, mass and furring strip specifications, and fenestration proposed areas by orientation (North, East, South, West). Check that each energy efficiency value matches your project plans.

cf1r prescriptive form writing process shown (step 4)

5. The final section lists fenestration type and frame details, maximum U-factor, maximum SHGC, NFRC values, and altered fenestration allowed areas. Complete the CFA calculations for your dwelling before submitting the form.

Step no. 5 for submitting cf1r prescriptive form

Step 3: Click "Done" to finalize your form. Download the completed CF-1R-ALT after signing up for a free 7-day trial. Your document is saved to your account and all changes are preserved. FormsPal protects your data with secure encryption.

If your California residential project also involves changes to space conditioning systems, you may need the CF-1R-ALT HVAC form. For new additions to an existing home, check the CEC CF-1R-ADD form. You can also browse the certificate of compliance form and the insulation certificate in the FormsPal library.