Roof Structure Defects

Many roof defects are a reflection of poor installation like improper fasting that may not be apparent right away.

Roof structure defects.

When an original timber roof structure is re covered it can be subjected to substantially higher loads by the new roof finish. We ve put together a few of the most common roof defects problems we find with roofs on surveys so you have a better idea of what you should be looking out for. In these situations the manufacturer designer distributor or retailer responsible for the defect can be brought to justice through the civil court system. Poor design damp penetration and failure of the roof covering which we sometimes see in out house surveys in london.

Roof sheathings typical defects list buckled delaminated. Shingle breakdown poor ventilation and moisture cause blistering. Poor installation can lead to interior structure damage and more. Damage to roofs due to standing water behind the penetration curbs.

Where roof coverings are penetrated by chimneys vent pipes overflows extract fans and so on. Improper finishing of the metal surfaces. Cause of roof spread roof spread occurs when there is a failure to adequately support the main rafters of the roof so as to prevent them spreading further open in a scissor type action. Poor designs found in pitched roofs.

We ll discuss some common roof defects you should be aware of. Roof defects due to penetration flashings. Slates and or tiles fixed with nails which may fail over time. Defects in pitched roofs normally caused by 3 main factors.

Roof trussess typical defects list buckled webs endbearing mechanical damage missing webs modified improperly notches holes rot insect or fire damage sag truss uplift weak connections. Alternatively if you are worried about the condition the roof structure in your current home a specific defect report can be commissioned to detail the cause of any defects and the required remedial work. Roof crush linked to manufacturing or design defects defective roof design manufacturing defects during vehicle production or improper installation of a vehicle roof can lead to collapse. Some of the issues with penetration flashing that cause roof defects are.

Slipped broken slates or tiles individual slates or tiles can suffer breaking or cracking. The potential for defects in the roof structure is just one of the many reasons to commission a full rics homebuyer report or building survey before committing to the purchase of a property. Tiles supported on timber battens which may rot. A number of general problems may occur in the roof covering.

Since the rafters are fixed to timber wall plates sitting on the head of the masonry wall then roof spread pushed out those wall plates in the process pushing out the masonry below. This is particularly the case where concrete tiles replace thin welsh slates.