Leveling Existing Roof And Porch Surface

The compound must be flat to avoid future ponding and roof leakage.

Leveling existing roof and porch surface.

Things to consider with jack up a porch roof the prep. Neglecting to prepare the old surface will prevent the new concrete from adhering correctly resulting in a weak bond between the two layers. For small ponding areas 3 x3 a 5 gallon kit can be used. If the bubble is in the same position as before the level is accurate.

Measure from the bottom of the horizontal support beam to the inside bottom of the 4 by 4 receiving. To preserve that consistent level height we nail mid span blocking in place and secure each piece tightly with 4 inch timberlok screws two at each end see photo bottom right. Use the flat side of a metal trowel to feather the edges of the leveling compound flush with the rest of the patio. During rainstorms the patio collects some water thereby forming puddles since there is not a good slope to allow for drainage.

You can level an existing concrete floor with a leveling layer of new concrete but you must prepare the old concrete floor first. So to begin i removed the existing counter flashing running about 5 courses up this was as easy as finding nails and prying. Then without lifting the level rotate it on its axis 180 degrees and let it come to rest in the same position on the surface. Mix the crumb rubber epdm and eps expandable polystyrene beads with the greenslope adhesive using a bucket or bag and pour it out over the area.

Empty the contents of the large bucket onto the concrete patio starting at both corners of the sloping end. With the level in position take a close look at the location of the bubble. Attach the horizontal beam by using a nail gun. Allow the leveling compound to flow and level itself for one to three minutes or until it stops.

Clean the area thoroughly to ensure the primer gets a good bond before priming the area. After the compound dries water is poured over the area to check for existing ponding. Make a cutting on one of the sides of the horizontal roof beam on an angle. When we are ready to begin decking we remove the roberts ridge.

After that to make it flush with the roof of the existing house cut the two outer rafters. Place one precast concrete deck footing directly under the point where the porch was the lowest. The compound is applied with a flat tool such as a steel trowel and a level is used to make sure the compound is applied evenly over the surface of the leak or indent.