Sealing and Securing Your Peace of Mind: Dulaney Exterior Solutions

Stopping leaks without excavation. Seepage or gushing leaks through holes, cracks and joints in walls, floors can be repaired from the interior. Concrete and CMU construction can be coated and injected to stop and prevent active leaks.

Old builder’s caulking and plastic/rubber glazing strips deteriorate and leak, causing the walls and insulation to get wet and deteriorate. We replace the organic caulk with inorganic sealant that will not be affected by the harsh south Texas sun and temperatures.

When windows are upgraded and removed, new pan-flashing should be installed in the window pocket to prevent any future leakage from entering the wall and damaging your building structure. After the window is installed, an air-block is installed between the waterproofing and the window frame to stop air leakage.

Leakage through balcony finishes is a major cause of structure failure. Balconies that are not absolutely watertight leak onto the framing and deteriorate the structural integrality. We provide a multiple layer waterproofing membrane that employs a drainage median to relieve hydrostatic vapor pressure. We also install extruded and powder-coated extruded aluminum drip systems that give the end product that professional finished look..

Many chimneys are built today without though-wall flashing and back-up walls. Roof flashing is saw-cut into mortar joints and caulked. Leakage enters the bug holes and cracks in the chimney above the flashing or enters cracked old caulking and leaks around the roof flashing. We install sealants that are unaffected by heat and Ultra Violet rays and plug bug holes and cracks. Sometimes, due the extremely porous materials used, we will install a penetrating sealer to the entire masonry chimney.

Expansion joints and cracks in exterior concrete slabs on grade need to be kept sealed to keep water from washing out the supporting stabilized base materials and sand. When the concrete slab support is compromised, the concrete cracks and moves, concrete cracks and moves; this allows water to enter the supporting base and can cause cracks.

Our old college professor used to say, “All Concrete Cracks”. This is true but, when the concrete is supporting buildings, garages and bridges, the structural integrity of the concrete is of major concern. Cracks and spalls, besides providing pathways for insects, let water and chlorides contact the steel reinforcement and produces oxidation which expands the steel and knocks off more concrete. Where structural integrity is the concern, we fill the cracks with epoxy resin using low pressure injection techniques. Other cracks may need just sealing the water out, which slows the oxidation to an acceptable rate.

A considerable amount of moisture is into your home or building by way of humid air leakage around doors, leakage around doors, windows, electrical outlets and plumbing fixtures windows, electrical outlets and plumbing fixtures. Today’s building materials don’t let moisture escape as rapidly as the older buildings and mold problems occur. We can caulk and seal those leaks and not only save the owner on energy bills but reduce the moisture load inside the building.