Manufactured Home Weatherization

At a Glance

Workbook

Latest Version

Manufactured Home Weatherization v7.2

Manufactured Home Weatherization v7.2

Approved at May 2023 RTF Meeting. QA Complete

Date

Version number

7.2

Past Versions

version	date	document
7.1	Jun 06, 2023	Manufactured Home Weatherization v7.1 Approved at the May 2023 RTF meeting. Undergoing QA.
6.0	Apr 18, 2022	Manufactured Home Weatherization v6.0 Updated with 2021 Plan cost effectiveness methodology
5.5	Sep 27, 2021	Manufactured Home Weatherization v5.5 Reran through ProCost 3.1.05 to correct for minor error
5.4	Jul 24, 2020	Manufactured Home Weatherization v5.4 Approved at the May 2020 RTF meeting. QC review complete.
5.3	May 19, 2020	Manufactured Home Weatherization v5.3 Approved at the May 2020 RTF meeting. Currently undergoing QC.
5.2	Mar 25, 2020	Residential Manufactured Home Weatherization v5.2 Minor changes made to this version to correct for the partial double counting of cooling savings. The impact on savings and cost-effectiveness was negligible and limited to heat pump households.
5.1	Feb 10, 2020	Residential Manufactured Home Weatherization v5.1 Workbook for savings approved at November 2019 RTF meeting. Workbook has completed QA/QC review.
5.0	Nov 22, 2019	Residential Manufactured Home Weatherization v5.0 Workbook approved at the November 2019 RTF meeting. Currently Undergoing QA/QC.
4.4	Jul 28, 2017	Residential Manufactured Home Weatherization v4.4 Error in the delivery verification checklist for exterior storm windows corrected.
4.3	Dec 02, 2016	ResMHWeatherization_v4_3.xlsm QC review complete.
4.2	May 12, 2016	ResMHWeatherization_v4_2.xlsm Updated to 7th Plan assumptions and format. Currently undergoing QC.
4.1	Feb 01, 2016	ResManufacturedHomesWeatherization_4_1.xlsm QC review complete for weatherization measures decided at June 2015 meeting. Low-e Storm Windows has been added to this workbook as of the January 2016 meeting and is currently undergoing QC
4.0	Jun 29, 2015	ResManufacturedHomesWeatherization_ElectricResistance_v4_0.xlsm Currently undergoing QC.
3.1	Feb 14, 2012	ResMHWx_v3_1.xlsm Updated as per recommendation memo.
3.0	Jan 26, 2012	ResMHWx_v3.xlsm Summary sheet added.
2.2	Jan 07, 2011	ResWXMH_FY10v2_2.xls Clarified unit type as per sqft wall area.
2.1	Sep 27, 2010	ResWXMH_FY10v2_1.xls Original savings workbook.

Decisions

Expand All Decisions

Latest decision

Decision details

Decided

May 23, 2023

Approve Measure Updates

Decision Details

Approve the updates to Single Family Weatherization and Manufactured Home Weatherization UES Measures as presented and:
-Do not apply any tax credit to windows
-Apply the tax credit to 50% of homeowners
-Keep the Category as Active
-Keep all Statuses as they are except for SF Gas HVAC Insulation which is changed to Planning
-Set the sunset date to May 31, 2026

Decided

October 18, 2022

Extend Sunset Date

Decision Details

Extend the sunset date for the Single Family and Manufactured Home Weatherization UES measures to May 31, 2023.

Decided

May 19, 2020

Approved Measure Changes

Decision Details

Adopt the updates to the Residential Single Family and Manufactured Homes Weatherization UES Measures as presented and:

Add Gas Furnace measure identifiers
Adjust assumed AFUEs based on data collected in both RBSAI and RBSAII
For the Gas Furnace measure identifiers, set the Categories to
- Proven for all SF measure applications, except Windows
- Planning for all SF Window measure applications
- Small Saver for all MH measure applications
Change the Statuses to Active
Adopt the Research Strategy as presented
Leave the Sunset Dates unchanged.

Decided

November 19, 2019

Approved Measure Changes

Decision Details

Approve the updates to the Residential Manufactured Homes Weatherization Measure as presented and:

Set Category to Planning
Set Status to Under Review
Set the Sunset date to November 30, 2022
Review, and if needed update ASHP sizing assumptions base on BPA CC&S dataset and any additional data to inform heat pump sizing for ASHP measure
Adjust the measure life for infiltration to 25 years
Adjust the Phase 1 Calibration factor for this measure from 0.5 to 0.6
During the QA/QC process, add a 10% infiltration reduction to window upgrade and retrofit measure application in the SF Weatherization analysis

Decided

January 21, 2016

Approve measure update

Decision Details

Approve the measure specification, savings, cost, and measure life for the Residential Low-e Storm Windows for Manufactured Homes UES measures and: Set the status to "Active". Set the category to "Proven" for electric resistance heating applications. Set the category to "Planning" for heat pump applications--The “Research Strategy for Manufactured Homes Heat Pump Related Measures” is approved for heat pump applications of low-e storm windows measures. Set the sunset date to May 2020 for electric resistance heating applications. Set the sunset date to August 2018 for heat pump applications”.

Decided

August 18, 2015

Approve measure update

Decision Details

Approve the MH HP Related Measures Research Strategy for following Manufactured Home With Heat Pump Weatherization measures:

Attic Insulation Upgrades
Floor Insulation Upgrades
Infiltration Reduction
Window Upgrades
Keep the Category as "Planning"; Change the Status to "Active"; Set the sunset date to August 31, 2018.

Decided

June 16, 2015

Approve measure update

Decision Details

Approve the Residential MH Weatherization UES measures as presented and:For measures with identifier Electric Resistance Heat; set the category to ‘Proven’; set the Status to ‘Active’ and set the sunset date to May 31, 2020.

Decided

May 12, 2015

Sunset date extension

Decision Details

Extend the sunset dates for the following measures to November 30, 2015:NC - ENERGY STAR and EcoRated homes, MH; NC - High Performance Manufactured Homes; Weatherization, MH; Performance-based Duct Sealing, MH; Air Source Heat Pump Upgrades, MH; Air Source Heat Pump Conversion, MH.Staff should complete the MH calibration comparison and reporting back to the RTF as quickly as possible.

Decided

May 12, 2015

Approve measure update

Decision Details

Adopt the delivery verification guidance, and related specification changes, as presented and with a 30 day review period, for the following measures:Residential Weatherization (SF and MH); Residential Performance Based Duct Sealing (SF and MH); Residential Commissioning Controls and Sizing (SF and MH).

Decided

April 14, 2015

Approve measure update

Decision Details

Change the status from 'Active' to 'Under Review' for the Residential Weatherization MH;Residential Commissioning Controls & Sizing MH; and Residential New Construction High Performance Manufactured Homes.

Decided

February 18, 2015

Allocate resources to measure development

Decision Details

Allocate RTF Staff resources towards developing:A Residential Low E Storm Windows UES measure, and A Residential Duct Insulation UES mesure, and A Residential Prescriptive Air Sealing UES measure, and A Non-Residential Lighting Code Compliant Standard Protocol, and A Next Step Homes measure.

Decided

July 15, 2014

Approve measure update

Decision Details

Approve the Phase I calibration for existing manufactured homes . The Phase I calibration aligns SEEM (69/64) with VBDD for homes with clear heating energy signatures and no non-metered fuels.

Decided

October 15, 2013

Direction for further analysis

Decision Details

Use Option 3 in estimating the savings for residential heating system and weatherization measures, and that the RTF delegate a decision on the definition of the “full measure package” to a subcommittee.

Decided

March 13, 2012

Approve measure update with direction for subcommittee

Decision Details

Approve SF and MH Residential Weatherization Infiltration Reduction. Change measure status to Active. (Infiltration measures to "Under Review" status).

RTF staff to work with subcommittee to come up with a proposal to estimate savings and costs. Infiltration Reduction measures do not account for the increased mechanical ventilation requirements required by the measure. Savings are too high, costs are too low.

Decided

February 14, 2012

Approve Measure Update

Decision Details

The RTF approved the Manufactured Home Weatherization UES Measure under active status with a sunset date of 5 years.

Decided

February 14, 2012

Direction for further analysis

Decision Details

The RTF adopted the Residential Weatherization Research Data Collection Plan for Determining the Impact of Prescriptive Air Sealing on Ventilation and Infiltration Resulting from the Implementation of the RTF Residential Weatherization Measure Specifications.”

Decided

January 17, 2012

Change measure status to under review

Decision Details

Approve "under review" status for manufactured housing weatherization UES measures. RTF to conduct a quality control check on the workbook.

Staff to solicit voluntary RTF member review of the workbook for errors with review due in time for February meeting packet in order to complete the update to active measure status.

Decided

November 01, 2011

Approve measure update with direction for subcommittee

Decision Details

The RTF approved the Residential Weatherization Inspector Examination and method developed by the Residential Weatherization Specification Subcommittee.

Res WX subcommittee to complete air tightness evaluation plan.

Decided

August 30, 2011

Direction for further analysis

Decision Details

The RTF advises that the region undertake an evaluation of the impact of the non-whole house air sealing weatherization measures through pre and post blower door tests with the RTF establishing a subcommittee to develop an evaluation design.

Decided

August 30, 2011

Approval of measure specifications

Decision Details

Approve the Residential Weatherization Specifications developed by the Residential Weatherization Specification Subcommittee dated August 31, pending development of an inspection test with a sunset date of three years from the date of adoption of the inspector test.

Develop inspector tests; Identify any increase in cost for measure implementation

Decided

May 03, 2011

Direction for subcommittee

Decision Details

Advised the Residential Weatherization Subcommittee to base its ventilation requirements on the 2010 ASHRAE 62.2.

Decided

August 03, 2010

Approve measure update

Decision Details

The RTF accepted the deemed measure updates for existing manufactured homes.

Small/rural Checklist

Latest Version

November 2019 Residential MH Weatherization Small/Rural Checklist

Checklist corresponds to changes approved at the November 2019 RTF meeting.

Date

Nov 19, 2019

Past Versions

version	date	document
	Oct 09, 2016	October 2016 Residential Manufactured Homes Weatherization-Electric Resistance Small/Rural Checklist v4.0
	Mar 23, 2016	Residential Manufactured Home Weatherization Small Rural Checklist

Manufactured Home Weatherization

About the RTF

Work Products

Subcommittees

Manufactured Home Weatherization v7.2

Approve Measure Updates

Extend Sunset Date

Approved Measure Changes

Approved Measure Changes

Approve measure update

Approve measure update

Approve measure update

Sunset date extension

Approve measure update

Approve measure update

Allocate resources to measure development

Approve measure update

Direction for further analysis

Approve measure update with direction for subcommittee

Approve Measure Update

Direction for further analysis

Change measure status to under review

Approve measure update with direction for subcommittee

Direction for further analysis

Approval of measure specifications

Direction for subcommittee

Approve measure update

November 2019 Residential MH Weatherization Small/Rural Checklist

Archived Documents