How to Fill the Gap Between an External Door Frame and Wall
How to Fill Gaps Between an External Door Frame and Wall
A gap between an external door and the wall can not only be unsightly, but it can cause damage to your home or business through water ingress, damp, drafts and heat loss. Thankfully, sealing the gap and restoring its weathertight seal is a straightforward task.
This helpful Door Station guide will provide step-by-step instructions on addressing gaps between an external door frame and the wall.
H3: Why Do Gaps Appear Around Door Frames?
Gaps around door frames are a common problem and can be the result of several issues. Changes in moisture levels can cause wooden doors and frames to swell and contract, leading to gaps forming. Poor installation can also cause the door and frame to become deformed which then leads to gaps appearing. However, if you spot excessively large gaps appearing, particularly if they are diagonal or jagged it’s time to call in a professional as it could be a sign of more serious foundation issues. A gap of around 2-3mm around the door frame is typical for proper installation and allows for some natural movement.
Equipment You’ll Need
- Expanding foam (for larger gaps)
- Exterior grade caulk or sealant
- Filler knife or caulking gun
- Utility knife
- Sandpaper
- Paint or finish (optional)
1. Prepare the Area
What to do: Clean the area thoroughly, and remove any loose debris, old sealant or flaking plaster from the area. This provides an ideal surface for the new filler to adhere to.
2. Choose the Right Filler / Sealant
What to do: For small gaps less than 5mm use exterior grade caulk or sealant. Medium gaps (2-20mm) should be filled with foam if needed and then finished with exterior grade caulk or sealant. Large gaps (20mm+) use expanding foam to fill the void, or a foam backer rod inserted into the gap. Then trim neatly with a utility knife.
3. Fill the Gap
What to do: If using caulk, load it into a caulking gun, run a smooth bead along the gap and smooth it with a filler knife or your finger. For foam, insert the nozzle into the gap, spray lightly and allow it to expand. Once dry, trim with a utility knife.
5. Smooth and Finish
What to do: Sand any rough edges, and paint over if desired.
6. Final Check
What to do: Inspect the door frame for any small gaps or air holes. Refill if necessary.
Filling gaps between an external door frame and the wall can improve energy efficiency.
Helpful Tips
There are several ways to reduce humidity and keep your wooden doors operating smoothly, without the need for tools and DIY.
- For particularly large gaps, prone to water damage and drafts try using weather stripping in addition to foam and sealant.
- Insulation tape can be used for extra protection, and to create a tight seal.
Final Thoughts
Taking time to carefully maintain your homes’ exterior will enhance your space while making your home warmer and drier. Filling the gap between your exterior door frame and the wall is a simple task with the right instructions and materials. Create a durable, professional seal with Door Station.
If your external door frame is damaged beyond repair, take a look at the extensive range of quality wooden doors frames at Door Station. Our range of internal, external and fire rated door frames are designed to complement our external doors, while providing full protection against the outside elements. Elevate your kerb appeal with Door Station.
Frequently Asked Questions
Why is there a gap between a door frame and a wall?
Allowing a small gap between the frame and wall means that the door can be adjusted to fit perfectly straight and level. It allows for variations in wall and frame dimensions.
Should there be a gap around the frame of a fire door?
Yes, there should be a gap around a fire door, but it should be within regulations. Best practice states that at the top and sides of a fire door the gap is less than 4mm, and at the bottom the gap is between 8-10mm.
How far should a door frame be from a wall?
The standard gap between a door frame and its opening is around 10mm. This allows the door to swing properly and accommodates small movements in the door and frame. nd Wall
