Sealing Concrete Roof Cracks

Any cracks or pitting will need to be filled in before applying the sealer.

Sealing concrete roof cracks.

Mark off any damaged areas you find with masking tape so they are easy to find again. Recommended methods for sealing cracks in concrete floors slabs how to seal control joint expansion joint cracks in concrete slabs list of materials used to fill poured concrete slab control joints how to seal a cracked masonry foundation wall or floor slab typical concrete crack preparation for sealant with an epoxy product use of polyurea as a control joint. Concrete can crack and produce leaks just like any other type of roofing material but it is easier to repair by far. Narrow concrete cracks can be filled using masonry crack elastomeric filler that can be applied with a caulking gun.

Alternatively many products come in bottles with an applicator tip. Very small cracks such as hairline cracks can be repaired using a vinyl concrete patching compound applied over the crack and then smoothed with a putty knife. New repairs using epoxy and polyurethane foam when performed properly offer years of relief from leaks. Most of the time cracks can be filled with caulking materials to prevent further damage.

These areas are prime spots for water to further erode the concrete so inspect the entire surface for any damage first. Advances in crack repair for home foundations extend to needed repairs in concrete roofs. It delivers high quality concrete adhesion and keeps cracks sealed. It doesn t allow moisture to seep through the crack which increases the lifespan of the concrete surface.

For thin or hairline cracks low viscosity epoxy resins will more often achieve better results. Waterproofing cracks on concrete roof with an elastomeric polyurethane sealant. Quikrete concrete repair quikrete gray concrete crack seal or quikrete self leveling polyurethane sealant may be used. For more information on sustainable waterproofing for concrete roofs.

The sashco slab sealant is one of the best concrete crack repair sealants you can buy. While the sashco slab is a bit on the expensive end it s completely worth it. Apply the concrete repair sealant to the affected area and smooth over with a putty knife. Follow the manufacturer s directions regarding dry time.