Seal doors - how it works!


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Seal doors - how it works!

Cracks and crevices between casements or doors and their frames cause significant heat loss in a non-insulated house. These can be significantly reduced by the installation of seals. Seals also have the advantage that doors and windows open quieter when closing.
Seals are available in different versions. When choosing the most suitable for the particular application execution is to be considered that longevity and an attractive design are often more important than low cost or a particularly simple way of mounting.
General possibilities for door sealing
Self-adhesive sealing strips or rebate seals for installation in a milled groove are usually installed in door or window folds where the door leaf or sash of a window hits when closing. However, strips to be nailed must be fastened visibly in the reveal next to the fold.
A material which can be used for sealing joints in a variety of ways, which is also suitable for closing joints between the frame and the surrounding masonry, is silicone sealing compound which is pressed into the joints by means of a hand press from commercially available cartridges.
The easiest remedy against drafts that penetrate under doors, brush-like seals screwed into grooves in the lower edge of the door or elastic rubber or plastic profiles mounted together with a housing at the bottom of the door. Furthermore, door shaft seals made of rubber are available between the upright frame parts
be attached to the ground.
Spring principle
Technically more complex solutions work according to the compression spring principle: When closing the door, the seal is automatically pressed down against the floor. The housing for this type of sealing strips lies invisibly in a groove at the bottom of the door.
On the outside of external doors, flush with the bottom edge, a weatherboard made of wood, plastic or aluminum can be applied, providing additional protection against the ingress of rainwater. Weather legs have a slope on the outside and are equipped at the bottom with a drip edge, which promotes the formation of droplets.
Install seals
Before attaching any type of gasket, always check that the sash or door in question is in place and not jammed. Required repairs or adjustments are required before attaching the
Perform seal. All surfaces must be clean, dry and in perfect condition. Prior to applying silicone sealant, pre-treatment of the surface with a primer may be required; Pay attention to the manufacturer's instructions exactly. Apply all kinds of gaskets with the utmost care: If they are too small, they are a hindrance when opening and closing doors and windows. If they have too much play, they are ineffective.
  • Self-adhesive sealing strips
Firmly press the adhesive surface of the strip against the fold of the door or window and gradually remove the protective strip during work. Apply the strip to the hinge side either on the side surface of the rebate or on the closing surface. At the top, bottom and on the side of the lock, attach the strip to the closing surface. Cut through the corners and let the ends dull together.
  • Seals to be nailed to the soffit
Use a small hacksaw to cut a gasket to the clear height of the soffit. With the door closed, hold the strip so that its elastic edge presses lightly against the door surface, then secure the strip with the panel nails slammed through the pre-punched holes. Cut the seal for the other side as well as for the fall part of the reveal in the same way and fasten.
  • Apply silicone sealant
Prepare surfaces to be treated with silicone sealant according to the manufacturer's instructions. Insert the cartridge with the sealant into the hand press and cut off the tip of the cartridge so that when pressed, a strip appears that is slightly wider than
the fold to be filled. Hold the press at a 45-degree angle to the surface to be worked and, with light pressure on the handle lever, guide it over the fold so that the pressed-out mass does not tear anywhere. At the end of the fold, release the lever on the press and pull the press away from the frame.
Tip from the editor
  • To prevent freshly applied sealant from sticking to the door, apply a release agent such as Vaseline or dishwashing detergent to the surfaces concerned. Close the door and allow the sealant to dry for the time specified by the manufacturer, then reopen and remove the release agent.

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