Trench / Strip

Trench fill and strip foundation details for UK houses and extensions. They include 150mm cavity walls with gas membranes and level thresholds, partial fill and EWI walls on beam and block floors, CLT foundations with concrete slabs and plinths, brick slip base details on timber and steel frame, curtain wall glazing bases, and stone-faced and SureCav walls on ground bearing slabs and beam and block floors.

Do you have details with a gas membrane? Yes, including a 150mm cavity wall trench fill foundation with a gas membrane and level threshold.

Are there extension foundation details? Yes. See the full fill extension set and the timber frame extension details.

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