Building Contractor Secrets: April 2020

Friday, 3 April 2020

How to Make Cheap Calls To Nigeria From Abroad


cheap calls to nigeria


As a Nigerian in Diaspora, one of the many issues i had is communication with my siblings, parents and friends back home - how to Make cheap Calls to Nigeria. This troubled me for quite a number of months for several reasons. Among the reasons were the fact that my income was very small which means I had to spend less, else I won’t be able to pay up my debt as well as extend a little help to my mum and siblings!
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These 5 Tips will keep your Septic System Eco friendly


Eco-friendly Septic tank

By Eco-friendly, I mean you'll never have to worry about seepage of septic wastewater to the ground water or foul smell. But then, let's not forget the septic system is one great way to treat wastewater efficiently. The septic tank system installed in our homes helps keep digest solid and liquid wastes by having micro organisms feed on these thereby ensuring there is a separation of Ground water from waste water. It also ensures there is not interference between ground and waste water. This implies when our septic tank system works effectively, we're guaranteed of a safe and friendly environment which is why we're going to be studying 5 tips that will help our septic tanks remain eco-friendly.
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Wednesday, 1 April 2020

Tutorial: Cost of Roofing 3 Bedroom Flat In Nigeria

cost of roofing 3 bedroom flat



So today i am talk about roofing sheets and the possible cost of roofing a 3 bedroom flat here in Nigeria. Before we start, i would like to first make a few things known to us all, and so i urge you to follow me as i unveil a possible roofing estimate slowly below
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COMPLETE GUIDE: Sand Filling Calculation For 3 Bedroom Flat

what is dpc level in building

Sand Filling is a stage of building construction arrived once the building has reached the DPC Level. In Nigeria, the most common type of DPC is that which takes off after the first 4 blocks are laid on site. It is at this level the construction team starts sourcing for filling sand.


The picture above shows a building at DPC Level


Filling sand is bought from sand beaches, it is conveyed to your site by trucks, dumpers or tippers as they're commonly called. It is however very important that you as a builder, a contractor or client knows the exact volume of filling sand to buy for a project and that is why this is a very important article for you.


I am going to be using a 3 bedroom flat as a case study and i expect you to have gained an accurate knowledge on how to correctly carry out Filling sand calculation.


How to Carry Out Filling Sand Calculation




While a lot of estimators would use software and other means to estimate for filling sand, i love to do it manually because it helps me manage things properly, also, i have a lot of African Audience who may not have these software handy


Floor plan design online
Floor Plan 3 Bedroom 2 Bath 


So we have our floor plan uploaded.


Requirements for sand filling calculation


In order to carry out sand filling calculation, an estimator must have; 

1. The floor plan of the building in question as this would help know the dimensions.

2. Sectional View of the building under Consideration

Recommended: Cost Of Fencing a Plot Of Land


Knowing the dimensions will enable a sand filling estimator work out the areas and volumes necessary to give you a better estimates

Having the Sectional View makes it possible to know the prescribed or specified height of DPC


In order to carry out sand filling calculation properly, I've taken the time out to pick out the dimensions of the various sections of the building under review



Let's not forget the height of the wall for this project is 36 inches or 3ft or 914mm which is obtained by multiplying the height of block (9 inches) by 4 (Number of coaches)

Thus, 9 inch x 4 coaches of block = 36 inches

Next is to convert 36 inches to mm which is done by multiplying 36 by 25.4

Thus, 36 x 25.4 = 914.4mm

Now we know the depth of our sand fill as 914mm or 0.914 meters

Let's proceed to calculate the total area that will receive the fill


Recommended: Septic Tank Estimation


How To Estimate Area For Sand Filling Calculation

Below is a table i have carefully created by picking out the dimensions of the various sections of the project under consideration

Section
Dimension (m)
Area (m2)
Volume (Area x 0.914) (m3)
Masters Bedroom
6.450 x 2.775
17.898
16.40
Kitchen
2.400 x 3.350
8.04
7.34
Varandah
2.500 x 1.200
3.00
2.74
Dinning
2.150 x 2.500
5.36
4.89
Sitting Room
3.675 x 4.150
15.25
13.94
Varandah
0.900 x 4.150
3.74
3.42
Room 1
3.600 x 3.125
11.25
10.28
Room 2
3.600 x 3.125
11.25
10.28
WC/Bath
1.400 x 2.000
2.80
2.56
Lobby
0.825 x 3.600
2.97
2.72
Total


74.54
Table 1 Showing multiplication of Length and breadth to obtain the area, multiplication of area with height of wall and Thus the total Volume (74.54m³)

From table 1 above, it could be seen that the length of Masters bedroom was multiplied with its width or breadth to obtain the area of the room after which the area was multiplied by 0.914m ( Height of wall) to give us the Volume of sand required to fill up our master's bedroom.

This approach was repeated for other sections!

After all Analysis, a total of 74.54m³ (Cubic Meters) were obtained.

What this means is that there is need for 75 cubic meter for sand filling of the building to DPC Level.

Well, we are not stopping there!

The aim of Sand Filling Calculation is to help a contractor, student, Client understand the number of trips of sand to buy for the project.

From what we already know about tippers or dumpers, it is a fact that the smallest trip of sand has about 3.81m³ of sand. You can see my article on Quantity of sand For filling a Room

So we are going to divide the total volume of material as we've calculated in Table 1 above by the volume of a trip of sand

Total Volume of Material = 74.54m³
Volume of trip of sand = 3.82m³

Thus, 74.54/3.82 = 19.5 TRIPS of sand

Since we can never buy half a trip of sand, we call it 20 Trips of sand

Note: If you are using any of the ACTROS Trucks which carry 10 or 20 tonnes, then you are to request for 10 trips only

Things You Must Know

The Estimate above was obtained by considering the dimensions of each section of the building - rooms, sitting room, kitchen. You may have a building with different dimensions which means the volume of sand required will surely be different from what i have here.

Thus, if you need a sand filling calculation done for your project, be sure to send a copy of your building plan in order to help the estimator estimate properly!

DPC level differs and depends on the terrain. For this project i chose 0.914m or 4 blocks high dpc. I Might decide to use 6 blocks high on another site.

DPC is usually specified after considering a lot of factors such as the topography and location of building

Conclusion

If you are looking for a way to carryout sand filling calculation, the content on this page will definitely help you achieve this. But if the dimensions of your building matches that used above, then feel free to buy as much trips of sand as estimated above as i am confident it'll cover the entire project with no excesses.

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