The very first thing you need to do is measure the length and width of your wall and cut out the styrofoam using that measurement. However, if your wall is too long, you may need to cut the styrofoam into bits and place one after another to make it easy to work with.<\/p>\n\n\n\n

Tips 2<\/h2>\n\n\n\n

Then measure the frame of your window and any other immovable objects (power service) on your wall. This is to enable you to make space for them in the foam and achieve a fine fitting. For your windows, measure from the ledger of the bottom to the bottom of the window, mark the measurement on your styrofoam.<\/p>\n\n\n\n

Tips 3<\/h2>\n\n\n\n

Also, measure from the point in the wall where the styrofoam will begin to the edge of the window (do that at both sides). Using the measurements, cut out the foam so that the window frames easily fit into the open space in the foam.<\/p>\n\n\n\n

Tips 4 Attach the Foam to the wall<\/h2>\n\n\n\n

Attach the foam to the wall, ensuring it laps well to the wall, especially at the window and any other place where there is an obstacle. Then fasten a 2-inch nail through the foam into the wall. You can use a longer nail depending on the thickness of your styrofoam. Also, use a nail that has a cap to cover any hole that may result from fastening the nail into the foam.<\/p>\n\n\n\n

Make your insulation air and moisture tight <\/h2>\n\n\n\n

Make your insulation air and moisture tight. You can achieve this using a special “6\u00d78” styrofoam strip to fill up the gap at every edge.  This special styrofoam strip has been wrapped with base coat cement and fiberglass mesh to effectively prevent air or moisture penetration.<\/p>\n\n\n\n

Use spray foam to fill in the edges <\/h2>\n\n\n\n

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Alternatively, you can use spray foam to fill in those edges. If you are changing your windows, perfect, just pull the windows, add the special styrofoam strip or a wood frame around the opening. The wood or styrofoam strip should be just the same thickness as the foam you are using, then put the window.<\/p>\n\n\n\n

That way, the window does not project past the styrofoam. Very importantly, also use house wraps or flashing tapes to seal the seams (areas where you joined two styrofoam). To avoid moisture penetration. This is essentially important where the styrofoam insulation is also serving as a drainage plain.<\/p>\n\n\n\n

The tapes should be strong enough to avoid passage of water at panel joints, risking the life span of the system.<\/p>\n\n\n\n