Construction supervision is also necessary for roof reconstruction

I got my hands on photo documentation from the roof where they removed the damaged original roofing and installed new roofing. New trapezoidal sheet. Yes, you read that correctly. Trapezoidal sheet. At this point, I would like to stress to anyone who is interested in renovating roofs to contact an independent expert, and that could be a structural engineer, a building supervisor or someone with demonstrable expertise.

Who can advise you?

civil engineer
construction supervision
forensic expert in the field of civil engineering
Roofing contractor with proven qualifications and a long list of successful references.

If you avoid the initial advice and design of a suitable structure, this may be the outcome. The roofing contractor will push you into the solution that is best for them and you will be left with a black Peter if you design incorrectly. The original corrugated metal roofing was replaced with trapezoidal sheeting at low roof pitches, with low corrugations, and anchored with farmer’s screws. The “antifarmers” group knows why these screws must not be used. If the builder had taken their advice, they might have done better to use fatrafol possibly other waterproofing. At least here there is a guarantee that others can’t do it without a welder. Roof replacement is one of the necessities when the original roofing is leaking for a long time.

What defects occurred on the roof?

missing chimney flashings
low roof pitch and inappropriate roofing material
anchoring the attic with farmer’s screws
trapezoidal sheet metal joints anchored with farmer’s screws
missing gutter gutter plate
missing attic cladding

As a consequence, the roof was replaced again, which you can see in the attached photo documentation that nothing else could be done about it.

Photo gallery

Admit it, you’re not rich enough to pay for two roofs on one house.

Video

You can find the video in audio format in the window below:

Let’s see what the right details should look like

I briefly pick a preview to the right details when renovating the roof. It’s not rocket science, but only a skilled worker or an experienced roof contractor will know

Incorrect flashing of the attic

The attic as part of the roof must be well connected to the roof covering. Without this, the roof cannot be penetrated. It is advisable that the flashing of the attic is implemented by the use of encolith.

plating without the use of framing screws
sheet metal joined lengthwise by c-rail
substrate, separation, waterproofing with encolite

Missing chimney cladding

It is unacceptable that the cladding of the chimney should be implemented by “siliconing only” around the perimeter. The cladding must be made by cladding around the perimeter with expansion bar. Silicone need not be used. And when it does, it only serves an insurance function.

How was the dismantling of the roof?

The roof had to be dismantled and thanks to good tools this dismantling could be done quickly. This is also important in the season. When someone makes a mistake, it’s always good to have the remedy done as quickly as possible. The disassembly of the roof was done by the implementation company using a DRACO 3514-2 AK Trimmer Watch the short video, maybe it will fit your project too.