Frequently Asked Questions

Metal-covered roofs are not necessarily noticeably noisier than other roof covering types – depending on the choice of type of metal roofing, underlayment and roof insulation method.

The simple answer is yes, your roof does need an underlayment.

A benefit of metal roofing over other materials is that metal doesn’t absorb moisture. Thus when you put on a metal roof, you need to create enough space between the deck and metal panels to allow airflow to remove the moisture. Preventing condensation MUST be achieved with the use of an appropriate underlayment.

Longer screws are available for fixing corrugated sheets on upper part with ‘saddle’ washer only.

Self drilling “stitching” screws are available for fixing sheet to sheet on laps, flashings etc…

EconoRobs panels are available in a wider range of colours/coatings and custom cut to length per piece up to 8m long, while Bricotuil panels are a DIY stock product, available immediately nationwide from any of our retailing partners.

If you are thinking about having your roof cleaned, make sure no type of pressure washer is going to be used.

Dirt that occurs with time may be cleaned off with a soft sponge using suitable non-aggressive detergents.

This is called white rust. Reasonable precautions to protect steel during both transport and storage can considerably reduce the risk.

If you donnot use our products immediately, storage must be indoors, preferably in a clean, dry area. Since rapid changes in temperature may cause condensation leading to white rust, storage should be at an even temperature above the dew point. It is of utmost importance to ensure proper ventilation and to use separators where necessary.

Yes. You are talking of our ‘tile effect’ products, which fixings should always be done at the bottom of the waves (Bricotuil, EconoRobs and Big Robs). The metal dilatation on those products is different because of the many tile pressings which considerably limit the linear expansion, allowing to use screws (with aluminium EPDM bonded washer) at the lower point, which offers high extraction resistance.

Robs products have the steel manufacturer guarantee against corrosion perforation by air, according to the standard EN10169

You’ll be surprised to learn that a metal roof is on average 50% lighter than an asphalt shingle roof, and 75% lighter than concrete tile and slate. With metal roofing, weight on a structure is not really an issue.

These are caused by metal residues of swarf, shavings, drilling etc… They should have been removed immediately using a fine brush but still can be cleaned off ASAP using suitable non aggressive detergents.

The absolute minimum is 9% to fully drain the rain water from the roof.

Yes, but always carefully walk on the troughs and base of the waves.

The screws are self-tapping therefore no drilling is necessary. Swarfs or filings resulting from their use must be eliminated straight away with a soft brush. The same applies for cutting wastage.