This project is presented by Gapseal
Summary: Filling Gaps In Floorboards. Stopping draughts from floorboards.
Filling or sealing gaps in floorboards is a very popular topic on DIY Doctor, and although there are several ways to do this, we recommend the use of a product called Gapseal, as it is quick, easy, and invisible and it lasts a very long time.
It is available in two colours to best suit your floorboards. Semi-Transparent is suited to very light floors and Camo-Fill is specifically designed for pine and dark floors.
Camo-Fill™ colour is a result of extensive research and after evaluating the effectiveness of over 100 different colours we decided that Camo-Fill™ was the best match to the natural shadow that appears between floorboards.
Traditional methods of filling in the gaps between your floorboards include the use of silicon, wood glue mixed with sawdust and even expanding spray foam. It is important to remember that all these solutions will be visible from the top of the floor, and will only typically last one full year due the expansion and contraction of wooden floorboards through the warm and cold weather. They are time consuming, expensive and can be quite messy.
Once your floorboards have been sanded and finished with your chosen varnish or lacquer, you should allow the floorboards to completely dry and for the finish to reach maximum hardness, which is typically 48 hours. Once dried, you can fill the gaps with Gapseal with minimum effort and with no need to sand and finish them again.
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Preparation
If you are fitting Gapseal to existing floorboards you should make sure that the gaps between boards are free from debris. This can be removed by either loosening with a plastic implement, or for floors that have been previously sealed by another method, a metal implement such as a screwdriver might be more appropriate. Care should be taken to avoid any electrical wiring that may be hidden under the floor.
Fitting
Cut the corner of the Gapseal bag and pull out the strip to an approximate length of around 2 metres. Fold the Gapseal along the pre-designed fold in the middle to make a V-shape. Then begin to push this into the gap between the first two floorboards as shown in the pictures below.
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Once the Gapseal is inserted, it can then be pushed down to the level of the floor joist with an old credit card or similar. Once the whole floor has been insulated, the Gapseal is invisible to the eye and produces a fantastic natural look to your floorboards whilst retaining heat.
Much more construction information is available in our bookstore. All the tools and fittings you need in the toolstore.
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