Skip to content
View in the app

A better way to browse. Learn more.
BuildHub.org.uk

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Underpinning foundation wall and installing thermal break

Clennls
in Foundations

Featured Replies

Hi all,

 

I have about 20 m where i need to underpin my existing wall. Between the new foundation and the existing wall i would like to install a thermal break (the height would be perfect for our underslab insulation). The problem is i don't see a way to use Celcon blocks or xps-concrete blocks because i don't think it is possible to place them and protect them from water and damp.

Currently we plan to use Perinsul because it is water and damp proof without the need for extra foils or membranes. But this is very expensive. Are there any other solutions? Liquid waterproofing?

Create an account or sign in to comment
Go to topic listing

Account

Navigation

Search

Search

Configure browser push notifications
Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.