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Question DetailsAsked on 9/13/2016



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Since the category for your question is Roofing, I presume you mean roll membrane roofing. Pallets is not the way you want to order or price this - even assuming the pallets are full pallets as shipped from the factory, every product and manufacturer can have a different number of square feet per roll, and different number of rolls per pallet - so you want to measure by square feet of product, taking into account wastage and overlaps and such when you order. If having this job done by a roofer, then you should pay lump sum for the job, or at worst per square feet covered on the roof - or per 100SF of roof, which is called a "square", and let the contractor figure out exactly how many much materials are needed to cover the roof properly.

You said for 7 sqr ft - I presume you mean 7 squares (700 SF) - which would be quite a small house, probably only 500-600 square feet of floorplan on the top floor unless your roof has no overhang - and of course if this is the case this would be a good time to give it at least a drip fascia and kickout drip edge to protect the siding and walls.

The materials cost itself is typically about $0.50-1.00/SF for normal roll roofing membrane (PVC usually cheapest, HDPE and high-end polymers the most expensive), getting up to around $1.50-2.00/SF for highly chemical pollution resistant and the very heavy duty HDPE (sometimes 100 mil or more) used at times in extreme storm (hurricane/typhoon) areas.

Installed cost for membrane roofs (including the materials), NOT including replacement of plywood sheathing and including removal of only one roofing layer (not several overlays of different roofs) commonly runs about $4-7/SF range except with the heaviest HDPE and similar "stiff" products, which can run near $10/SF because a crane is usually needed to lift the very large and heavy rolls (up to about 30x100' per roll) up in the air over the roof for unrolling. This is normally not done for residential jobs - residential sized rolls tend to be small enough two men or a small high-lift forklift or supply vendor delivery truck boom crane can lift the rolls to the roof. Most manufacturers also sell "patch rolls", smaller rolls that one person can handle on a ladder or pull up with a rope, for patch jobs and steep roofs and roofs not readily or economically accessible by mechanical lifting equipment - about 10-15% more expensive than normal roofing rolls.

BTW - normal residential membrane roofing rolls hold about 100-1000SF per ROLL, so no way you need pallet loads for 7 squares - more like a couple or up to maybe around 10 rolls max probably - so probably not even one full pallet load.

Answered 4 years ago by LCD

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