Door Threshold / September 15, 2018 / Leala Melanson.
4. THRESHOLDS Although a flush threshold is the most popular option especially for internal bifold doors this may not always be practical in some cases and a conventional raised threshold will need to be used. It is important to note that the height of these can vary considerably with some upvc bifold door thresholds exceeding 125mm. Such a high step-over threshold may create an accessibility issue for children and the older generation. The latest bifold door designs offer raised thresholds designed to minimise the trip hazard with some offering thresholds as low as 50mm high.
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.
These protectors can be made from molded plastic or cardboard. Pre-molded plastic protection works well for jambs with standard door casing widths. For larger jambs there are several wrap-around jamb protectors that work similarly but are not molded to an exact casing size. These reusable protectors provide excellent protection however they are the most expensive jamb protectors in the market. Less expensive cardboard protectors wrap around jambs in a similar fashion and cost considerably less than their plastic counterparts. These are available from a wide range of manufacturers can be purchased online or in construction supply stores as well.
Buying a cheap bifold door may prove a disappointment unless you check carefully that the door you are buying will meet your needs and expectations before you order. Threshold ramps are designed to help you get over a small dip or rise. They work great for power scooters or wheelchairs as they allow you to span doorway thresholds or small steps that may otherwise would have an abrupt height gain or drop. These ramps can be fixed in place or portable. If you have an electric mobility scooter it is a good idea to have a threshold ramp. Even a 1-inch dip or rise can pose a significant barrier and could result in injury if traversed.