An important functions of exterior doors and windows is to keep outside temperatures from entering the house. In order to do this, exterior doors and windows need to be properly sealed and their seals kept in good order.
If you can see light around the door frame or a candle (or stick of incense) held around the frame flickers then the gaps are drawing air either in or out of your house and should be blocked.
Both the gaps around the sides and top of the door as well as the gap between the bottom of the door and the threshold should be sealed.
Gaps around the side and top can be sealed with weatherproof seals while the gap at the bottom is sealed with a door bottom seal. These are explained in detail below.
Did you know!! A 3 mm gap around an external door is the equivalent to a 14 cm diameter hole through an outside wall.
For more ideas for sash or double hung windows click here.
For more ideas for sliding aluminium winows click here.
The most common weather seal brands available locally are Moroday , Raven products and Cowdroy. Use each companies respective product charts to select the appropriate type of seal. Each company makes a similar range of products.
The table below allows comparison of the common brands' products. Clicking on the product takes you to the products specifications.
Weatherproof seals list
The style of door opening, the direction of the opening and the width of the door must be considered when selecting a model. Often an exisitng door bottom seal can be readjusted to refit the gap.
Door bottom seals are made from plastic, rubber, nylon brush or self sealing flaps of aluminium or plastic or a combination.
Door bottom seals
Draught sausages can be used to seal the door bottom gap on internal and external doors, especially those leading to unheated or cold rooms such as bathrooms, toilets and laundries.
Double sided draught sausages are extra useful as they stay in place as the door opens and closes. Double draught excluders are also useful for sash windows too, as the window can be closed into the gap between the two sausages.
CLICK HERE for instructions for replumbing your door if it is warped or settled resulting in large and variable gaps.
Door stop seals
Products not available in Australia but can be purchased on-line via Amazon and are useful for sealing gaps are:
FrostKing Mortite caulking cord - easy to use caulk in a cord. Useful for sealing gaps inside or outside without drying out. Can be paited over and easily removed.
3M Interior Weather Sealing Tape - this tape is flexible and conformable, working to seal cracks and eliminate drafts. Useful for sealing windows, vents. Can be removed without damamging paint etc.
Weather seals and door bottom seals
stores stock a selection of seals See CONTACTS for hardware addresses.
specialists have other quality products as
well. Access Hardware
Most hardware stores as well as Spotlight stock single sausages. See CONTACTS for addresses.
Make or purchase double sided sausages on-line at Amazon (search for twin or double draught excluders, costing around $10).
Weatherproofing products not available in Australia such as the 3M and Frostking products can be easily ordered from Amazon