Lifetime costs: Durable floors |
| Capital cost (£/m²) | Net present value for 60-year life (£/m²) Discount rates | Service life in heavy commercial areas (years) |
| | 3.5% | 6% | Ìý |
PVC sheet and tiles | Ìý | Ìý | Ìý | Ìý |
Homogenous PVC tiles to BS EN 649, minimum 2 mm thick, use class 33 to BS EN 685 | 14 | 35 | 26 | 15 |
Homogenous PVC sheet to BS EN 649, minimum 2 mm thick, use class 33 to BS EN 685 | 16 | 39 | 29 | 15 |
Carpet sheet and tiles | Ìý | Ìý | Ìý | Ìý |
Carpet tiles with heavy use intensity to BS EN 1307, use class 4 (heavy contract) | 19 | 65 | 46 | 10 |
Carpet sheet with heavy use intensity to BS EN 1307, use class 4 (heavy contract) | 15 | 53 | 38 | 10 |
Linoleum sheet and tiles | Ìý | Ìý | Ìý | Ìý |
Plain or decorative linoleum tile to BS EN 548, minimum 2 mm thick, use class 33 to BS EN 685 | 19 | 37 | 29 | 20 |
Plain or decorative linoleum sheet to BS EN 548, minimum 2 mm thick, use class 33 to BS EN 685 | 20 | 38 | 30 | 20 |
Table notes |
l Costs are based on a functional unit of 1 m² of floor covering. The m² rate is an average for a typical 1500 m² city office. There is an extensive range of floor covering options; only a limited number have been included in this article. |
l Costs include initial supply and installation; removal and replacement of coverings at the end of their service life. Sheets and tiles are adhered to the floor. All costs exclude fees and VAT. |
l Nominal cleaning costs have been included as follows: Carpets: Weekly vacuum, quarterly wet extraction and an allowance for removal of stains and spillages. Linoleum and PVC: Daily dust and spot mopping, weekly scrubber dryer and high-speed polisher, annual scrub and recoat, and an allowance for minor repairs. |
l Costs are discounted to net present values at a discount rate of 3.5% in line with recent Treasury guidelines. As a comparison with previous whole-life cost assessments in Specifier, an additional column has been included indicating costs discounted at a rate of 6%. |
l Service lives represent typical average lives to enable a comparison of the whole-life costs. |
l Durability in this analysis is considered to be a function of wear. Reduction of other functional requirements such as loss of colour have not been considered. |
l The 60-year period reflects a typical design life to BS ISO 15686–1:2000 ºÚ¶´ÉçÇøs and constructed assets: Service life planning – general principles. |