Tar And Gravel Roof – Total Average Cost per square foot. $4.00. $4.72. $5.55. Cost can add up quickly, especially if you’re a novice and have never attempted a Tar And Gravel Roof installation before. I would strongly recommend you hire a licensed and Insured roofing contractor to perform the installation for you. Composite decking costs $15 to $36 per square foot, including railings, framework, and hardware. Decking boards only cost $4 to $13 per square foot. Trex decking costs $5 to $10 per square foot for boards only. Expect to pay $10 to $27 per square foot, including decking, railing, and framing. Trex is a popular type of composite decking made Permeable concrete, for example, costs between $4 and $21 per square foot to install and permeable asphalt costs $3 to $5 per square foot. Drainage systems in your yard cost an additional $2,500 Builders costs can vary, but the biggest variations in the per square metre cost of extensions are usually in the inclusions. Outside, the difference between timber and brick veneer is about $150 per square metre, but full brick will be more and if you add rendering, the cost per square metre will be even higher. There are significant However, if required to make comparisons between different prices which are given for different units (like 6.99 per sq.metre and 5.99 per sq.yard) then it is necessary to know just what units are being used for the purchase. This information is given under 'Comparative Costs per Unit'. Flat roof cost per square meter. Flat roof prices start from £40 per m2 for felt roofs. Rubber roofs costs start from £80 per m2. For fiberglass, expect to pay from £90 per m2 and for fire glass bay roof from £250 per square meter. Lead bay roofs are even more expensive, starting from £300 per m2. Spread the love UPDATED CONTENTS: Building Costs 2021 Building Costs 2015 BUILDING COSTS IN SOUTH AFRICA – 2021 STATSSA is the South African Government Department of Statistics that aggregates building cost data from municipalities around South Africa and its provinces. This data can be used to arrive at the building costs per square metre … Continue reading Carport, garages Attached Carport: Flat Roof - Metal/Timber frame m2 $ 500 Attached Carport: Pitched Roof - Metal/Timber frame m2 $ 550 Attached Carport: Pitched Roof - Brick Piers m2 $ 750 Detached Carport: Flat Roof - Metal/Timber frame m2 $ 500 $115 per square metre for electric in-screed heating. $105 per square metre for hydronic in-screed heating (excluding boiler cost) Under-tile or under-carpet heating. Under-tile or under-carpet heating is the easiest type of underfloor heating to install. The heating units are mats with very thin electric coils embedded in them. The average cost of construction in Kenya ranges from Kshs 33,450 per square metre to about Kshs 72,400 per square metre. And in terms of feet, the average building rates in Kenya stretch from Shs 3,135 per square foot to about Shs 6,785 per square foot. ( Compare these findings with the more recent 2022 roundup of Kenya’s construction costs G7KI1N.