Door Threshold / September 17, 2018 / Martine Letourneau
New jambs allow for air-tight vinyl weather stripping and adjustable thresholds with vinyl door bottom sweeps. Low maintenance fiberglass or metal doors are sandwiched with foam insulation. And doors with windows come with thermal glass. Installing a new door in an existing older home has become a highly desired remodeling upgrade. These days installing a pre-hung entry door system (including jambs) to new wood stick frame construction is generally pretty straight forward; you can just nail or preferably screw through the jambs to the framing studs behind. If adjustments are necessary just pull the nail or back out the screw re-align the jamb using builders shims and try again.
Choosing the right bifold door for your project is an important decision and one that should not be taken purely based on cost alone. Your budget will naturally have an influence on your buying decision but there are other important factors that need serious consideration to ensure you are not disappointed with your purchase. Here are the top five points that are regarded by many as the most essential research when considering a bifold door purchase: 1. THERMAL PERFORMANCE Since most bifold door installations will be subject to compliance with building regulations it is important to check that the folding door you are about to buy will meet your local authoritys interpretation of current building regulations in terms of overall U-value performance.
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.