Flexible Grout For Sale

 For me, attic floor sealing opportunities occur randomly. Here I am working at the edge of an attic ladder now fully installed. Before I can place flooring, I must fully fill floor joists with insulation. Before that I must fill the large gaps at hallway wall headers. The flexible grout I prepare in my kitchen from powders and acrylic liquid, is reserved for use in drywall patching of the hallway ceiling.

Use instead Custom Fusion Pro Tile grout  readily available in any big box store. Choose color White. My grout and Custom grout are chemically very similar. They work as a putty the consistency of creamy peanut butter. Applied with a bit of pressure to a water-wetted gap, expect full-depth filling and stable bridging that hardens quickly, permitting recovery of excess with a trowel, and wetted-sponge cleanup if wanted. My grout is sandable, almost as easily as ordinary drywall compound, or formable to any desired texture pattern. Learn more at a blog promoting this; http://plasterrepairhowto.blogspot.com/ .

Fingers are readily washed for no-harm handling of my iPhone. Tools include a 3" flexible-blade trowel and a spray bottle for wetting of gaps.

Use of can foam for gap filling here, is absurd. Foam skins instantly without penetration and wet contact, rarely with full sealing. Expensive applicator guns are useless for intermittent application, so hard to clean up, involving dangerous chemicals, quickly ruined.

Kraft facing on batts is absurd. Here it hid the wall header gaps with no sealing effect. 

Some gaps are really large; this abused as a wiring passage. With the trowel, push in some rips of the wispy fiberglass, for one-step grout filling.

This is the so-often crumpled downward face of kraft-faced insulation. Never intimate. Often allowing energy-driven air circulation, defying insulation value. I peel off and dispose this trash. Kraft facing defies careful, tight placement of insulation, and should be abolished. It is ineffective as an air seal and usually detracts from insulation value.