SK 
EN for roofers and sheet metal workers
A system for roofers that turns measurements into covering and flashing counts
A roof is hard to price because the real material usage does not follow the footprint area, but the pitch, the overhangs, the valleys and how the covering has to be cut.
A custom system for a roofing company starts at €1,400 and the first version is usually ready within a week. From the roof dimensions and pitch it works out the area, covering usage including overhangs and cuts, battens, flashing parts and the price, so the quote leaves during the site visit instead of a week later.
Why a roof is the hardest thing to price
The footprint area is not the roof area
Every pitch gives a different number, and on a multi-slope roof you work it out by hand, part by part.
Valleys and overhangs eat extra material
A ten percent estimate is sometimes enough and sometimes short by a whole pallet. The difference comes out of your pocket.
Flashing gets priced too late
Gutters, downpipes, chimney flashing and snow guards are counted separately, often only after the contract is signed.
Weather wrecks the crew plan
Moving one job means moving three. Who is working where is usually known only to the owner.
What a system like this includes
A calculation that uses the pitch and shape of the roof, not just the footprint. From the dimensions you get the real area, the number of sheets or tiles including overhangs and cuts, battens and membrane.
Flashing parts as separate line items worked out from lengths, meaning gutters, downpipes, edge flashing and snow guards. That way the quote carries from the start what otherwise gets added only at invoicing.
A crew and machine plan on a calendar that survives a weather move. When one job shifts, you see straight away what it does to the rest of the week and you do not have to hold it in your head.
Job records with photos before and after the work. On a roof this matters more than elsewhere, because a complaint arrives after the first heavy rain, and without photo evidence the argument over the state of the roof frame is hard to win.
- Dimensions and pitch You enter what can be measured, not a tile count.
- Material usage Covering with overhangs and cuts, battens, membrane, flashing parts.
- Price from your rates Material, labour, scaffolding and transport in one calculation.
- Quote for the customer It leaves during the visit, not a week later.
What stands behind it
I have not built one specifically for roofers yet. The closest is the scaffolding rental system, where the dimensions drive material, weight and price, and by the way you need scaffolding on a roof anyway. What is not there yet are pitches and flashing parts, and that is the part we would go through together at the start.
The closest finished system is the one for scaffolding rental. There too the wall dimensions drive a parts list, weight, number of trips and a price, which is exactly the same type of calculation, only with a different material.
While building it, the first step was pulling apart the client Excel, and it turned up 10 errors he had been sending quotes by for years. That is exactly why this kind of work starts with questions and not with code.
Common questions
Can we load our own covering catalogue?
Yes, the catalogue and the prices are data you manage yourself. That is exactly why the same system works for sheet metal, tiles and standing seam covering.
We also do insulation and facades, does that fit?
Yes, it is another area based calculation, just with a different material. Most firms keep both in 1 quote, because the customer deals with them at once.
How does it work on a roof with no signal?
A record can be made offline and sent later. On a site visit that is a normal situation, so I plan for it.
How long does it take?
The first working version within 1 week. Most of the time goes into matching the calculation to how you really price today, because there are more exceptions there than it looks at first glance.
Still pricing a roof on your knee?
Tell me how you price it today and where it goes wrong most often. The quote comes straight off the roof on your phone, and its numbers match what you actually buy. The first call is free.
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