Duct Sealing on Mobile Homes

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* 1. Contact Information

First and Last Name

Agency Name

BPI Number (if applicable)

City/Town

State/Province

Email Address

Phone Number

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* 2. What listing/rating is required for duct sealing materials?

WD-40

UL-181

R2-D2

UB-40

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* 3. Using Mastic alone, without tape is acceptable on holes:

1 inch or smaller

½ inch or smaller

¼ inch or smaller

1/8 inch or smaller

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* 4. When fastening a round duct together, you must use at least:

1 screw

2 screws

3 screws

4 screws

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* 5. A duct run that comes off of the trunk line is called:

A split

An arm

A leaf

A branch

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* 6. When using tape, mastic, rigid patch materials to repair large holes in a duct, the SWS recommends your materials overlap by a minimum of:

1 inch

2 inch

3 inch

½ inch

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