Sometimes members of the starling family have historically been called grackles. Tristram's starling is sometimes known as Tristram's grackle, and the hill mynas in the genus Gracula have also been called grackles.ometimes members of the starling family have historically been called grackles. Tristram's starling is sometimes known as Tristram's grackle, and the hill mynas in the genus Gracula have also been called grackles.
Waterproofing an old limestone foundation from the exterior with âClosed Cellâ spray polyurethane foam provides a water tight seal from the outside.
Insulation isn't an air stopper, that's your vapor barrier. Spray foam is basically an air barrier and insulation in one, and can fill any shaped cavity. But for basic walls, it can be done for a lot less money with bat and poly.y putting the foam sheathing on the exterior of the walls and making them air tight (for a fraction of the cost) and foam insulating the roofline the payback is. about half. in a perfect world...ductwork and mechanicals wouldn't be in the attic.