Spray foam is modern, with the formulas being constantly updated and modified to make sure they are safe, environmentally friendly and in line with contemporary building codes. Traditional insulation can retain moisture, potentially causing damage to your home and allowing mold to spread. Spray foam, on the other hand, comes in two varieties. Open cell spray foam insulation allows water to pass through but doesn’t retain it, allowing for the easy repair of leaks, while closed cell spray foam forms an absolute seal against moisture. Spray foam will not sag, settle or deteriorate over time and will even add to the overall structural strength of your home. Closed cell spray foam insulation can add up to 250% racking strength to your walls and roof, potentially seriously enhancing the house re-sell value. Traditional insulation can allow the transfer of allergens and pollutants into your home, and also can become quite dusty, potentially leading to respiratory issues and health problems for your family. Spray foam keeps those dangerous elements out completely and creates a safe home environment. While traditional insulation can play host to rodents and insects, who can eat it or use it as nesting grounds, spray foam is not a source of food for pests and thus, they’ll not take residence in your insulation.