Answers to Questions for 3 Bedroom Manufactured Homes 622008.doc

QUESTION and ANSWERS – SOLICITATION HSFEHQ-08-R-0084

3 BEDROOM MANUFACTURED HOMES

1.

I don’t see a requirement for underbelly protection commonly called “bottomboard.” In the MH north and south section the requirement is for 20m thick vapor barrier. If the same for the Park Models is it allowable to multi layer thinner products. Commonly bottomboard in the MH industry runs approximately 5m thick. Would it be acceptable to use 4 layers to reach the 20m thickness?

Answer: Using 4 layers to reach the 20m thickness is acceptable.

2.

Anchor straps. May the vertical and diagonal tie straps be replaced with DAPIA approved brackets attached to the floor perimeter and brackets welded to the main beam? This system for strap attachment on site will be like previous supplied FEMA homes and should reduce the chance that straps will be spliced on site.

Answer: Please provide in detail with proposal. It must show it meets or exceeds the specifications. Provide the testing on this approach as well.

3.

Electrical system Should the panel board location be on the left side or road side?

Answer: Up to provider, typically roadside.

4.

Ventilation Bathroom and kitchen exhaust state measured flow not rated flow by mfg. Will these exhausts on each home require testing?

Answer: Please provide CFM rating.

5.

Weather radio Only the northern UFAS call for a pillow vibrator or meet/exceed option. Does this unit require the pillow vibrator?

Answer: Both require pillow vibrators.

6.

Northern specs This relates to the air supply ducts/furnace. Page 5 seems to contradict page 7 as it relates to the air supply. Should the warm air supply ducts be in the floor in ceiling?

Answer: Through ceiling. However, can propose in detail another measure. Please justify how meets or exceeds specifications.

7. Southern unit Says exterior vapor barrier only summary of unit features states homes are placed in TX, LA,MS,GA,AL,FL,SC,NC HUD rules do not allow these homes in all area of these states except FL,LA see 3280.504 Answer:

8.

Air supply ductwork

Warm air supply ductwork state assure airtight construction with a maximum 3 percent duct loss is this test strictly based on the volume of air in duct. Or the values based on air handler airflow rates and correlate approximately to cubic feet per minute of leakage divided by the floor area of the home?

Answer: Please refer to HUD standards

9.

Bottom board

Bottom board specifications require plastic materials a minimum of 20 mil thickness can this requirement be met by the use of industry standard DAPIA approved bottom board with 20 mil plastic applied between the bottom board and floor insulation?

Answer: Please provide in detail with proposal. It must show it meets or exceeds the specifications. Please provide puncture results.

10.

Attachment D-5 floor plan drawing indicates bedroom 2 to have 62.5 sf of floor space. Specifications of D-1 thru D-4 requires each bedroom to be designed for 2 people. HUD MHCSS 3280.109 (b)(2) require 70 SF of bedroom for 2 people.

Answer: Please follow HUD standards.

11.

Attachment D-5 floor plan drawing indicates bedrooms 3 and 2 to have 2'-8" x 2'-0" windows. This size window would not be in compliance with HUD MHCSS 3280.106

Answer: Please follow HUD standards

12.

On the accessible manufactured home shall all "UFAS" standards APPLYOR just the "UFAS standards referenced in the summary of unit features?

Answer: All UFAS standards apply.

13.

Bottom board specifications require plastic materials a minimum of 20 mil thickness. Can this requirement be met by the use of industry standard DAPIA approved bottom board with 20 mil plastic applied between the bottom board and Floor insulation?

Answer: Please provide in detail with proposal. It must show it meets or exceeds the specifications. Please provide puncture results.

14.

Quality of construction states "no luan, mdf, vinyl gypsum or products which contain urea-formaldehyde will be allowed". Is this saying none of these products are allowed or none allowed which contain urea-formaldehyde?

Answer: None are allowed. If have another option, please provide MSDS on materials.

15.

Attachment d-1 "rugged accessible manufactured home procurement specifications southern unit" has northern unit specifications attached. Should the southern specifications be used here?

Answer: Yes