Sealing Concrete Roof Cracks

It doesn t allow moisture to seep through the crack which increases the lifespan of the concrete surface.

Sealing concrete roof cracks.

For thin or hairline cracks low viscosity epoxy resins will more often achieve better results. The sashco slab sealant is one of the best concrete crack repair sealants you can buy. 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. For more information on sustainable waterproofing for concrete roofs.

Mark off any damaged areas you find with masking tape so they are easy to find again. Concrete can crack and produce leaks just like any other type of roofing material but it is easier to repair by far. 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. Advances in crack repair for home foundations extend to needed repairs in concrete roofs.

These areas are prime spots for water to further erode the concrete so inspect the entire surface for any damage first. Most of the time cracks can be filled with caulking materials to prevent further damage. It delivers high quality concrete adhesion and keeps cracks sealed. The most common complaint with regard to both concrete tile and flat concrete roofing is water leaks.

Apply the concrete repair sealant to the affected area and smooth over with a putty knife. New repairs using epoxy and polyurethane foam when performed properly offer years of relief from leaks. 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.

Step 1 widen the crack using a chisel and hammer to a minimum of inch and break away any deteriorating concrete the edges of the crack should be vertical or beveled in an inverted v. When there are leaks in a flat concrete roof the fast fix is usually to apply some kind of sealant or waterproof cement at the site of the leak. Any cracks or pitting will need to be filled in before applying the sealer. Follow the manufacturer s directions regarding dry time.