Cavity Walls: U Values (W/m2k) for Fully Filled Cavity Walls Constructed Using Outer Leaf Aircrete B

U-Values for Fully Filled Cavity Walls Using Celcon Standard Aircrete Blocks

	Inner Leaf: With 2mm Celfix Mortar Joints
	Standard
		Jumbo Plus	Normal/Plus
	Internal Finish	100 (mm)	100 (mm)	125 (mm)	150 (mm)	190 (mm)
50mm Dritherm	Dense plaster	0.42	0.42	0.39	0.37	0.34
	Lwt plaster	0.41	0.41	0.38	0.36	0.33
	12.5mm plasterboard on dabs	0.39	0.39	0.37	0.35	0.32
65mm Dritherm/IsowoolCWS/Rockwool	Dense plaster	0.36	0.36	0.34	0.32	0.30
	Lwt plaster	0.35	0.35	0.33	0.32	0.29
	12.5mm plasterboard on dabs	0.34	0.34	0.32	0.31	0.29
75mm Rockwool-blown	Dense plaster	0.35	0.35	0.33	0.31	0.29
	Lwt plaster	0.34	0.34	0.32	0.31	0.28
	12.5mm plasterboard on dabs	0.33	0.33	0.31	0.30	0.28
75mm Dritherm/Jablite EPS70	Dense plaster	0.34	0.34	0.32	0.31	0.28
	Lwt plaster	0.33	0.33	0.32	0.30	0.28
	12.5mm plasterboard on dabs	0.32	0.32	0.31	0.29	0.27
100mm DrithermPLUS/Rockwool	Dense	0.27	0.27	0.26	0.25	0.23
100mm DrithermPLUS/Rockwool	12.5mm plasterboard on dabs	0.26	0.26	0.25	0.24	0.22

	Inner Leaf: With 2mm Celfix Mortar Joints
	Hi-Strength
		Jumbo Plus	Normal/Plus
	Internal Finish	100 (mm)	100 (mm)	125 (mm)	150 (mm)	190 (mm)
50mm Dritherm	Dense plaster	0.44	0.44	0.42	0.40	0.37
	Lwt plaster	0.43	0.43	0.41	0.39	0.36
	12.5mm plasterboard on dabs	0.41	0.41	0.39	0.37	0.35
65mm Dritherm/IsowoolCWS/Rockwool	Dense plaster	0.38	0.38	0.36	0.35	0.32
	Lwt plaster	0.37	0.37	0.35	0.34	0.32
	12.5mm plasterboard on dabs	0.36	0.36	0.34	0.33	0.31
75mm Rockwool-blown	Dense plaster	0.36	0.36	0.35	0.33	0.31
	Lwt plaster	0.35	0.35	0.34	0.33	0.31
	12.5mm plasterboard on dabs	0.34	0.34	0.33	0.32	0.30
75mm Dritherm/Jablite EPS70	Dense plaster	0.36	0.36	0.34	0.33	0.31
	Lwt plaster	0.35	0.35	0.33	0.32	0.30
	12.5mm plasterboard on dabs	0.34	0.34	0.32	0.31	0.29
100mm DrithermPLUS/Rockwool	Dense	0.28	0.28	0.27	0.26	0.25
100mm DrithermPLUS/Rockwool	12.5mm plasterboard on dabs	0.27	0.27	0.26	0.25	0.24

Block format:
Normal: 440mm long x 215mm high
Plus: 610mm long x 215mm high
JumboPlus: 610mm long x 270mm high

215 x 65 x 102.5mm bricks with 10mm joints

Note: A fully filled cavity wall construction is not suitable for all exposure conditions.

This information has been sourced, reviewed and adapted from materials provided by H + H Celcon.

For more information on this source, please visit H + H Celcon.

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APA
H + H Celcon. (2019, April 23). Cavity Walls: U Values (W/m2k) for Fully Filled Cavity Walls Constructed Using Outer Leaf Aircrete B. AZoBuild. Retrieved on October 03, 2023 from https://www.azobuild.com/article.aspx?ArticleID=7902.
MLA
H + H Celcon. "Cavity Walls: U Values (W/m2k) for Fully Filled Cavity Walls Constructed Using Outer Leaf Aircrete B". AZoBuild. 03 October 2023. <https://www.azobuild.com/article.aspx?ArticleID=7902>.
Chicago
H + H Celcon. "Cavity Walls: U Values (W/m2k) for Fully Filled Cavity Walls Constructed Using Outer Leaf Aircrete B". AZoBuild. https://www.azobuild.com/article.aspx?ArticleID=7902. (accessed October 03, 2023).
Harvard
H + H Celcon. 2019. Cavity Walls: U Values (W/m2k) for Fully Filled Cavity Walls Constructed Using Outer Leaf Aircrete B. AZoBuild, viewed 03 October 2023, https://www.azobuild.com/article.aspx?ArticleID=7902.