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replacement double glazed sealed units Seals Replacement Over time, normal wear and tear or other issues can cause seals on patio doors to wear out and let cold air in homes. Replacing these seals could reduce energy costs for homeowners. Felt weather strip is inexpensive and simple to cut using scissors or a knife. It comes in a variety of thicknesses and designs and includes pile strips made from different types of fabric. Bulb Threshold A solid threshold can act as a thermal bridge that effectively transfers cold and heat between the inside and outside. This can lead to high energy bills, drafts, and even bug infiltration. You may want to consider using a frost brake threshold that divides solid material with silicon or vinyl inserts to create physical divisions that interrupt the flow of warmth and cold. Recent studies have shown that the threshold for a bulb is less than 35 degrees Celsius. This temperature can be dangerous for those who work outside or don't have access to indoor air conditioning. It's also risky for those who are elderly and suffer from underlying health problems. Place a candle or incense stick close to the threshold of your patio door on a cold morning to see whether it's sealing properly. If the flame or smoke is diverted to the side the threshold isn't sealing properly and needs to be replaced with weather stripping which creates a more secure seal. A U-shaped sweep that compresses against the threshold of the door after closing can be fixed or nailed to the bottom. This will prevent drafts, and protect from insects and other critters. Felt Felt is a fabric that is non-woven made of either synthetic or natural fibers. It's typically used as the basis layer for a door's weather strip. The fibers of Felt are interlocked together to create a strong and matted fabric that's water-resistant, durable and soft. It's also insulating and fire-resistant, making it a highly versatile choice for a wide range of applications and purposes. Often it is installed between the doorframe and the door, with the felt providing a tight seal to block drafts and air leakage. As the seasons change and temperatures fluctuate, this could be a major issue for homeowners and cottagers alike, with drafts and air leakage potentially leading to costly energy bills in the long run. Thankfully, this problem is easily fixed by replacing the weatherstrip on the patio door and can be accomplished quickly and efficiently with the appropriate tools and materials. The most common weatherstripping for patio doors is “felt.” It is available in different sizes and thicknesses to fit inside any standard patio door frame. Different from other types of weatherstripping, felt is a nonwoven fabric that doesn't have warp or weft threads like weaving fabrics do. It won't fray at the edges and cutting it won't alter its strength as a whole. Felt has a thick and thick texture, which makes it a good insulator and soundproofing fabric. It is believed that felt originated with nomadic tribes, and is still an important component of many different cultures. In Mongolia, for instance, it is still used to make yurts as part of an ancient custom that goes back to thousands of years. It is also used to make beautiful coats and hats as also craft materials, and even rug pads. To put on new felt on the doorframe, you must remove any weatherstripping you have on the doorframe by using a screwdriver or a utility knife. Scrape off any glue or adhesive. Then, thoroughly clean the area around the doorframe using damp cloth and an abrasive cleaning solution such as rubbing alcohol to eliminate any dust or other debris. You can use a measuring tape make sure the surface is clean and precise for the new weatherstripping. Weather Strip Most patio doors feature a weather strip along the frame's edge, creating a more secure seal when the door is closed. As time passes, the strip may wear down or break permitting moisture and air to enter the home and damage flooring and furnishings. The weather strip can be replaced to stop drafts, improve energy efficiency, and protect storage items. This project can be accomplished using a variety of materials such as felt that is affordable to high-performance polyurethane. When selecting a material take into consideration durability and longevity and ease of installation. Self-adhesive tapes are a simple choice for DIYers, while interlocking metal weather strips require more knowledge and expertise to install. Before beginning the project, inspect the old weather strip for signs of damage or deterioration. If the seal appears worn or tattered, it should be replaced with a new one in order to ensure its durability. Once the old weather strip is removed, wipe down the area to get rid of any remaining “sticky goo” or adhesive residues that could hinder an even and clean finish. The length and wideness of the doorframe need to be measured accurately to ensure that it is a good fit for the new weather strip seal. Make use of a sharp utility knife or scissors to cut the new weather strip following the tip of a piece of scrap to serve as a guide. Make sure that the cut is straight and precise; an angled or jagged cut could result in an unfitting door seal. Test the new weather strip with care once it is installed. Close and open the door a number of times to ensure it creates a secure watertight seal around all corners and sides. Seal any holes or gaps with caulk that is outdoor-rated. This step should be completed at night after the sun has set and the door has been shut and secured. A family or friend member stand outside and shine a flashlight around the perimeter of the door. If you can see any light shining through the weather strip, it is time to change or modify it.