Door Threshold / September 14, 2018 / Laure Lacharite.
This is key is providing you with a weather proof and secure garage. During construction or remodeling projects door thresholds are often destroyed by dirt mud paint splatter and careless spills. In order to avoid replacing or refinishing thresholds it is recommended that contractors use temporary threshold protection. Following is a brief description of the pros and cons of each type of threshold protection. UV protective tape is the best kind of adhesive threshold protection. It is a 9 mil. thick white tape that does not flake even if exposed to bright sunlight.
Currently the best tape on the market T-X268 is a specialty tape that combines UV chemicals in both the tape and adhesive so it wont break down with ultra violet light. There are additional tapes available for sill protection as well including those made with blue polyvinylchloride. The cost to protecting doors jambs and thresholds are well worth the small investment. The average cost for a cardboard door protector one cardboard jamb protector and tape for the threshold is less than 25.00 The cost to replace just a door alone can range from several hundred dollars to several thousand dollars.
Of course youre going to check the concrete threshold step for level. Carpenters never assume anything right? Measurement of the exterior brick opening overall height from threshold to lintel will be noted. Any further uncertainty about whether a house was built with masonry walls can be at least partly resolved by measuring the exterior brick opening overall width. A width measurement slightly off by about one-half inch from the nominal brick opening is a sure tip-off that youre going to be facing the direct fasten to masonry challenge. Adjust your installation estimate accordingly for some extra labor.
Then re-assemble door system and re-shim into the indexed positions in the rough opening. At last now fasten jambs to the cinderblock with the masonry screws using shims at each screw location. Fine tune screw adjustments by wedging the shims to get the reveals around the door even. Adjust top and bottom jamb shims as necessary. Open and close door to check touching the weather stripping evenly top to bottom for any possible jambs twist. Some slight remaining jambs twist can be adjusted by persuading the jambs with a block and a hammer. Be careful. Now nail the shims permanently in position with a pneumatic nail gun shooting squarely into the cinderblock. Dont worry the nails should sink into the cinderblock as long as they are the proper length and are nailed squarely and firmly.