Splashback Measuring & Fitting Advice

A 2mm to 3mm expansion gap is required around the perimeter of a glass splashback to allow for thermal expansion, and to prevent it from cracking due to minor wall or unit movement. 

This small gap should be measured and accounted for during the measurement process and then filled with a low modulus silicone sealant after the splashback is in place.  

Why is a gap necessary?

Thermal expansion: Glass, like most materials, expands and contracts with changes in temperature. A gap prevents the glass from putting too much pressure on adjacent surfaces.

Wall and unit movement: Walls and kitchen units can also subtly move over time due to moisture and temperature fluctuations. A small gap provides tolerance for this movement, reducing the risk of the glass cracking.

How to ensure the correct gap:

Measure accurately: Measure the wall space for your splashback multiple times and at different points.
Deduct the gap: When taking your final measurements, deduct the 2-3mm gap from each edge that will meet a fixed surface like a countertop or a corner.
Use tile spacers: If needed, you can use small tile spacers to maintain the gap during installation.
Apply sealant: Once the splashback is installed, fill the gap with a solvent-free, low-modulus silicone sealant to provide a watertight seal and a clean finish.

For splashbacks with drilled fixing holes, your splashback should include a fixing kit which includes screws and screw caps.

Splashbacks without fixing holes require a suitable silicone for fitting. This should normally be included in the parcel, but in some cases may arrive separately.
Please ensure that you use a low modulus, neutral cure silicone - other sealants may cause a reaction with the paint or print on the back of the glass splashback.

Fitting Preparation
Unpack your glass splashback very carefully. Always place the splashback on a soft surface.
Printed glass splashbacks will have foil backing applied to the rear. This opaque layer stays on the glass (don't peel if off!).
Always 'dry fix' or 'offer up' the glass before drilling the wall or applying adhesive.

Fixing using adhesive
If your splashback is free standing you will need a support at the bottom to hold it still while the silicone dries / goes off.  This can be removed after 24 hours once the adhesive has cured.
If your splashback is sitting on a worktop or upstand, no support is required.
Apply enough strips of adhesive to the back of the glass from one side to the
other in 100mm intervals.
Carefully place your splashback into the desired position and press firmly against it for 30 seconds.
The silicone can also be used around the edges of the glass to seal them and give a professional finish.

Fixing using screws
Position your splashback on to the wall and mark each hole with a pencil,
making it very clear where the centre of the hole is.
Using a digital detecting device, check that there are no pipes or cables behind where you have marked.
Drill using the correct drill bit that matches the rawl plug and wall material.

Finishing
It's fairly common practice to use silicone to seal around the edges of the glass after it has been fitted; this prevents moisture or dirt getting in, and leaves a tidy edge.

If you have end up with a gap around the edge that is visible / annoys you, it can be filled with a compound like Builders Caulk which, when dry, can be overpainted with the colour of your choice.

Any questions, please let me know!