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.
Spray Foam 101: Open vs. Closed Cell Foam Insulation June 29, 2016 - 8:55am If youâre considering insulating your home with spray foam, itâs important to understand some of the basic differences between the types of spray foam insulation that are available for you to choose from. When it comes to residential foam insulation like Icynene, you have two primary choices: closed cell and open cell spray foam. The first option, closed cell spray foam insulation, is a medium density rigid spray foam. Itâs ideal for small spaces that still need a high, consistent level of insulation, due to its higher R value per inch than open cell spray foam. Closed cell foam can also assist at rejecting bulk water penetration, making it an ideal consideration for areas of your home that are more humid or prone to flooding such as basements.