PERFORMANCE

STRUCTURAL AND MECHANIC

Guttercrest Rainwater Systems are highly resistant to impact breakage, will support ladders, wind and snow loadings.

FIRE

Generally, systems do not aid combustion and are rated as follows:

Plain - Non combustible to BS476 Part 4.

PPC - 0.1 Fire Propagation Index BS476 Part 6.

PPC - Class 1 Flame Surface Spread BS476 Part 7.

CHEMICAL

Guttercrest products are corrosion resistant but should not be used where acids or strong detergents occur.

BIOLOGICAL

Products are vermin and rot proof and are not affected by general moulds, bacteria etc.

ENVIRONMENTAL

Products are recyclable and offer no environmental hazard.

THERMAL

Coefficient of thermal expansion is 0.000026/deg C for cast aluminium and 0.000023/deg C for sheet aluminium. All systems are designed to cater for thermal expansion.

COMPATIBILITY

Direct contact with dissimilar metals or with materials containing lime or cement should be avoided.

The use of aluminium on buildings with copper roofs is not recommended.

In location of aggressive atmospheric conditions and coastal areas, we would advise contact with our technical department.

DURABILITY

Guttercrest Rainwater Systems should have a low maintenance life of forty years in normal atmospheric conditions that would be reduced in industrial and marine environments.

The decorative life expectancy for polyester coating should be between 15 to 35 years depending on atmospheric conditions and regular maintenance.

EXTREME WEATHER CONDITIONS

Guttercrest's product range is designed to withstand the normal UK climatic variations.

Consideration should be given to extra fixings, brackets, snowboards etc. If exceptional conditions are anticipated.