Why Do Gates Warp?
Gates, whether they are made of wood or metal can sometimes warp, leading to functional and aesthetic issues. Warping is a common problem that affects the longevity and performance of gates, and understanding the causes and preventive measures can help homeowners and builders maintain their gates in optimal condition.
Here we will explore why gates warp and how you can prevent it.
Why Do Gates Warp?
Moisture and Humidity
One of the primary reasons gates, especially wooden ones, warp is due to changes in moisture and humidity. Wood absorbs and loses moisture from the environment, causing it to expand and contract.
If one side of the gate is exposed to more moisture than the other, uneven swelling or shrinking occurs, leading to warping.
Temperature Fluctuations
Extreme temperature changes can cause materials to expand and contract. Metal gates, for example, can warp when exposed to direct sunlight followed by cooler temperatures at night. The differential expansion and contraction create stress within the material, resulting in warping.
Improper Installation
Gates that are not properly installed are more prone to warping. If a gate is not hung level or if the frame is not square, it can place undue stress on certain parts of the gate. Over time, this stress can cause the gate to twist or bend out of shape.
Inadequate Support
Without proper support, gates are susceptible to sagging and warping. Large or heavy gates need additional structural support to maintain their shape. Unsupported sections can warp due to their own weight or external forces like wind.
So how do I prevent my gate warping?
1. Seal and Protect:
Wooden gates should be sealed with OSMO UV Oil upon arrival - and at least once every year - to act as a sealant and help protect the gates from water ingress, as well as protect the gates colour from UV damage. This means the timber's moisture content changes slower than a timber that has only been stained.
This is the main factor in preventing cracking, twisting and warping.
2. Proper Installation:
Ensuring that your gate is installed correctly can prevent many issues.
It is essential that your gate is be acclimatised and treated upon arrival, hung level, and the frame should be square. Using the appropriate hinges/ironwork for your gate and the right size will distribute the weight and stress more evenly, reducing the risk of warping. For more installation advice, click here.
3. Provide Adequate Support:
Large or heavy gates should be reinforced with additional support structures and/or items, such as spring loaded wheels or throw over loops. Again, this helps appropriately support your gate and prevents against sagging or difficulty opening and closing your gates.
4. Regular Maintenance:
Regularly inspecting and maintaining your gate can prevent minor issues from becoming major problems. Check for signs of warping, rust, or moisture damage and address these issues promptly. Tightening loose hardware, ensuring that the gate remains level and treating with UV sealant every 6-12 months can also help.
5. Climate Considerations
Take your local climate into account when choosing materials and designing your gate. In areas with high humidity or significant temperature fluctuations, it may be worth investing in materials and designs specifically engineered to withstand these conditions - such as Iroko Hardwood gates.
