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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Ultra Lightweight Concrete Block λ ≤ 0.28 W/mK
Full Fill Insulation
Pitched Roof Gable
400mm insulation (0.044W/mK) at Ceiling Level
Ventilated Loft
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Party Masonry Cavity Wall
Separating Wall and Roof
2 x 100mm Aircrete Block (0.19W/m²K) Party (Separating) Wall
100mm cavity fully filled with insulation (0.044W/mK) density up to 40kg/m3
150mm insulation (λ = 0.044W/mK) between the rafters
50mm (λ =0.022W/mK) below the…
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block Inner Leaf (λ ≤ 0.60 W/mK)
Full Fill Insulation
Steel Lintel with Perforated Baseplate
(Insulated Soffit)
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Aircrete Block Inner Leaf (λ = 0.15 W/mK)
Full Fill Insulation
Pitched Roof Eaves (minimum pitch 40°)
400mm insulation quilt (0.044W/Mk) at Ceiling Level
Ventilated Loft
This LABC…
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Lightweight Concrete Block λ ≤ 0.60 W/mK Inner Leaf
Partial Fill Insulation
2 x Dense Blockwork Leaves to Party (Separating) Wall
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Aircrete Block Inner Leaf (λ = 0.19 W/mK)
Partial Fill Insulation
150mm Cast In-Situ Suspended Slab
150mm Insulation Below Slab (0.022W/mK)
This LABC Registered Construction Detail is…
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Aircrete Block Inner Leaf (λ = 0.19 W/mK)
Full Fill Insulation
Steel Lintel, Open Back
(No continuous base plate)
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Dense Concrete Block Inner Leaf λ ≤1.33 W/mK
Partial Fill Insulation
Beam and Block Floor
Dense Floor Block
100mm Insulation Below Screed (0.022W/mK)
This LABC Registered Construction Detail is…
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Dense Concrete Block λ ≤1.33 W/mK Inner Leaf
Full Fill Insulation
2 x Dense Blockwork Leaves to Party (Separating) Wall
This LABC Registered Construction Detail is only valid for use with building…
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Partial Fill Insulation
100mm Aircrete Block Inner Leaf (λ = 0.15 W/mK)
150mm Beam and Aircrete Block Infill
100mm Insulation Above Slab (0.022W/mK)
75mm Screed
This LABC Registered…