Costs and savings are those incurred using a 100mm, 7N dense concrete backing block, which is not required when SureCav25 is used.
The Costs are based on a 200 square metre wall dwelling which is the estimated square meterage of a four bedroom house.
The cost of SureCav25 for this area (200m2) is priced at £15.00 per sheet (370 sheets SureCav), giving a total of £5,550.00
|DPC Linear Metres||£0.15||plm*||£4.20|
|Spoil Excavation and Haulage||£98.00||cm*||£294.00|
|Additional Concrete in Foundations||£110.00||cm*||£330.00|
|Lintels over doors and windows in backing block skin along with additional wall ties||At least||£1050.00|
|Bricklayer(s) and Labourer (estimated)||£23.00||psm*||£4,200.00|
|2 weeks extra financing on contract||Estimated||£402.00|
|2 weeks additional scaffold hire||£725.00||pw*||£1,450.00|
Total Estimated Cost of Using Concrete Backing Blocks
|Comparison Results of SureCav v 100mm Concrete Blocks (per square metre)|
|Estimated Cost of Using Backing Blocks||(£13,730.20/200)||£68.65|
|SureCav25 Cavity Spacer System||(£5,555.00/200)||£27.75|
SureCav25 savings (m2)
Overall savings: £8,175.20.
By choosing SureCav25 you could be saving £40.90 per square metre by not building with a block support wall. That's over 2.5 times cheaper than a block backing wall! With a 25mm residual cavity, there is also the option to insall additional insulation to help lower U-Values. Also, don't forget that the time saved using SureCav25 results in a faster build, estimated to be 10 working days on an average four bedroom house.
Costs quoted exclusive of VAT
*psm - per square metre
*plm - per linear metre
*pw - per week
*cm - per cubic metre (i.e. 100mm x 40m = 4 cubic metre)