Door Threshold / September 18, 2018 / Pauline Francoeur.
But what about retrofitting a new entry door system in an older home built with cinderblock masonry walls? You cant use the same technique of just nailing through the jambs the masonry will just deflect and bend a regular framing nail. Cut nails might possibly work but the chances for jambs alignment adjustments are slim to zero while the chances of masonry cracks or half-moon hammer head marks in the jambs are almost a given. Masonry screws need to be started in pre-drilled cinderblock holes which can be drilled through the jamb but Ive never been satisfied with their holding power alone where the cinderblock is prone to crumble around the holes while adjusting screws and snugging shims tight. Experience has taught me to always insert plastic expansion sleeves in the cinderblock to properly fasten masonry screws.
Many exterior door thresholds have bottom plates. These plates allow the door to seal but can be difficult barriers for scooters and wheelchairs. The tracks on sliding glass doors can be significantly damaged if a scooter runs over them. These are just a few example of the need for threshold ramps. They can help you overcome barriers and make getting around easy. These ramps are sold in a variety of shapes sizes and materials. They can be custom fit for your home or business. They are also designed to be non-skid and provide good traction. This prevents slips or slides.
When youre satisfied that the door system is in the correct position drill through the thickest part of the hinge jamb with a regular drill at the hinges areas and then further drill into the cinderblock with a hammer drill. Drill the strike jamb in the same corresponding locations with the middle drilling positioned between the strike and deadbolt mortises. Countersink jambs holes to flush the masonry screw heads. It may be necessary to remove the door from the hinges for this step just remember to check the indexed jambs alignment to be sure nothing has moved. Remove shims and then remove door system from the rough opening. This must be done to install the plastic expansion sleeves into the holes drilled into the cinderblock.
In addition many door protectors and jamb protectors are reusable so the long term cost for protection is even less. The front entryway including the door jambs and threshold is the focal point of your clients home. It sets the tone and expectation for the rest of the home and it can add or detract curb appeal. Entryways have been important dating as far back to the Greeks. According to Jesse Nevins of Coastal Carolina University "To ancient Greeks doors were considered sacred and surrounded with superstition. So much so that doors and the comprising parts had their own deities.