Seasonal pouring risk
Pouring Screed in Cold Weather
Cold doesn't stop a screed pour, but it changes the plan. Temperature management before, during and after the pour is what keeps a winter job on track.
Planning a winter pour?
Name, phone, email — we'll reply the same working day with a fixed price.
Liquid screed can be poured in cold weather, but both cement-based and anhydrite screeds have minimum temperature thresholds for the pour itself and for the site conditions afterwards. Pour too cold, or let a fresh screed freeze before it's cured, and you risk everything from extended set times to permanent strength loss.
Most manufacturers won't warrant a pour below around 5°C ambient and rising, and won't accept any risk of frost reaching an uncured screed within the first 48–72 hours. In a Devon winter, that's a real planning constraint, not a technicality.
This page sets out what we actually do differently on a cold-weather pour — the checks beforehand, the protection during curing, and how we decide whether a site simply isn't ready for a winter pour yet.
Cold weather thresholds we work to
5°C and rising
Min. ambient for pouring
5°C
Min. substrate temperature
48–72 hours
Frost-free period needed after pour
10–25°C
Ideal curing temperature range
What cold weather does to a screed pour
- Slows the hydration/curing reaction, extending time before foot traffic
- Increases risk of frost damage if the building isn't enclosed and heated
- Can cause surface crazing if the screed freezes before it has gained strength
- Extends overall drying time before floor coverings can go down
- Raises the risk of condensation on a cold slab affecting bond
Planning a winter pour?
Tell us your programme dates and building status, and we'll advise honestly on whether conditions are right, and what protection you'll need if they're borderline.
How we manage a winter pour
- 1
Check the building envelope
We confirm the building is weathertight and, ideally, has some background heat before agreeing a pour date.
- 2
Monitor substrate and ambient temperature
We take readings on the day and won't pour below the manufacturer's minimum threshold.
- 3
Protect the pour afterwards
Where heating isn't yet live, we advise on temporary heating or insulation to keep the screed above freezing for the critical first days.
- 4
Adjust the drying programme
We build extra time into the drying estimate to reflect lower ambient temperatures and humidity through winter.
We'd rather push a pour date back a week than pour into a cold, unheated shell and risk the screed. It's a cheaper conversation to have before the pump arrives.
— Exeter Liquid Screeders
Cold Weather Screed Pours — questions we get asked
Keep reading across the site
Planning a winter pour?
Tell us your programme dates and building status, and we'll advise honestly on whether conditions are right, and what protection you'll need if they're borderline.