Hi All - A follower asked for comparison between him using LONG SPAN and NIGERITE CROWN TILES in respect to cost implication.
Our calculation was based on a particular 3 bedroom design; the different factors in the roofing was:

1. In the Crown Tile we required double the PURLINS needed compared to the Aluminum Long Span.
2. The total surface area to be covered was 190m2

The Calculation is Shared below:


CROWN TILES VS LONG SPAN ROOFING (COST)

The Crown Tiles comes in sizes of 420mm x 320mm; this implies that there would be an increase in the numbers of purlin (2x3 - hardwood) used by 50%. The reason is simple:

While Long Span come factory cut to required length of buyer (hypotenuse) of the roof, allowing a standard spacing of about 750mm - 900mm; the Crown Tiles come in already cut smaller sizes, hence closer spacing is required at about 270mm - 300mm hence the doubling.

From the Aluminum Calculation we had: Purlin (2x3) = 65 @ N450 = 29250 we will just double that to:

A. Purlin (2x3) = 130 pcs @ N450 = N58,500:00K

B. Cost of Roofing with Crown Tiles:

What quantity of this product would we need to cover the 190m2 space generated from our attached design?

0.42 * 0.32 = 0.1344 ( in a meter square we have about 8pcs ) but remember they lap over each others so we end up using 10 pcs per meter square.

Hence if 10 pcs covers 1m2; we have 10 pcs x 190m2 = 1900 pcs to be brought. (Always add for waste 10% on this occasion) = Approx 2000 pcs

Cost of One Crown Tile = N305 hence; Total Cost of Roofing Tiles = N610,000

NOTE: Cost of Roof Covering using ALUMINUM LONG SPAN WAS = N2200 x 190 = 418,000

The Eaves and Facial board being covered with Aluminum in the previous calculation resulted in an overall cost of N867,300

COST DIFFERENCE:

TOTAL COST IN ALUMINUM = N418,000 + N29,250 (Roof covering + Purlin) = N447,250 : 00k
TOTAL COST IN CROWN TILES = N610,000 + N58,500 (Roof covering + Purlin) = N668,500 : 00k

MY VERDICT:


QUALITY ALUMINUM (0.55mm thick) IS CHEAPER.


GOOD-LUCK

pics: Crown Tile and Long Span

Thumbs up.
Crown tiles have better qualities,more high temperature resistance n more sound proofing ability.
Op pls what's the cost of stone coated roofing tiles per sqm?

wtfCode:
Thumbs up.
Crown tiles have better qualities,more high temperature resistance n more sound proofing ability.
Op pls what's the cost of stone coated roofing tiles per sqm?

Thanks - on cost (i'll have to make a call)

Pls op can you also help to compare the cost using Long span aluminium and nigerite slate