Johns Manville Insulation

What type of personal protective equipment is recommended by JM to keep dust out of the eyes during insulation installation?

What type of gloves should be worn to protect against mechanical abrasion when handling fiber glass?

What is the efficiency rating of the particulate respirator recommended when working with fiber glass?

Before installing fiber glass batts, what should other trades such as electrical and plumbing have done?

What should be verified as sealed with durable caulk, tape, and/or foam sealants?

What is the correct way to install faced batts?

What should be done if the insulation is too long for a space?

How should ceiling insulation be installed to ensure sound control between floors?

When insulating a cathedral ceiling, how far should insulation be kept from recessed lighting fixtures unless the fixture is IC rated?

What is the purpose of a vapor retarder in ceiling insulation?

What is the recommended interval for stapling the flanges of faced insulation in ceilings?

What should be done to the insulation at the end of each joist run in an attic installation?

What should be used to fill in narrow gaps between joists?

When installing insulation in exterior walls, what should be done if the insulation is too short?

What is the first step in applying a vapor retarder on exterior walls?

In basement insulation, what should be done before insulating walls that leak water?

What is typically used to hold blanket insulation against the sill plate at the top of the basement wall?

When insulating a finished basement, how should the insulation be installed?

What should be done with the bottom of the insulation when installing it vertically in a basement?

What should be used to give the insulation a finished look after covering all joints and seams?

What is the recommended method for installing unfaced batts in ceilings?

What should be done to ensure that vapor water flows out and cools the roof when insulating ceilings?

How should faced insulation be installed in relation to the vapor retarder in ceilings?

What is the main benefit of insulating cathedral ceilings with high-performance R-value insulation?

When installing insulation in exterior walls, what must be covered with gypsum board or another approved interior finish?

What is the purpose of using FSK-25 flame-resistant faced insulation?

What should be done to control air leakage when insulating exterior walls?

How often should the poly film vapor retarder be stapled to the studs when applying it to exterior walls?

What is the recommended overlap for sheets of poly film to minimize leakage

How should the staples be driven when attaching the poly film vapor retarder?

What tool may be needed for driving fasteners into concrete or cinder blocks when installing basement insulation vertically?

What is the first step in installing basement insulation on unframed walls horizontally?

When insulating a basement, what should be done with the blanket insulation around obstructions like ductwork, plumbing, or electrical?

How should adjacent blankets be fitted together when installing basement insulation?

What is used to secure the top edge of blanket insulation in a horizontal basement installation?

How should the top and bottom pieces of blanket insulation be attached to each other in a vertical basement installation?

What is the purpose of white vinyl patch tape in basement insulation?

What should be done with small pieces of batt insulation when insulating a basement?

What is an important consideration when working with insulation around light fixtures in cathedral ceilings?

What should be done if the fiber glass batt insulation is too short for a space?