Slate Repair Hallhook - Pack of 10 Slate Hall Hook and 1 HookPull

Product Information

A building’s environment and the weather conditions to which it is exposed to are essential aspects when designing a roof. The design and technical details will not be the same for a project located in a sunny, dry region to a rainy region. The main factors to consider here are exposure to wind and rain. There are a number of advantages and disadvantages which one should consider before using natural slate. On the plus side, natural slate has an aesthetic appeal and will stay looking good for many years. As such it may not need replacing. Other types of roofing slates such as concrete will lose colour and not wear so well visually, making slate more cost effective.

When opting for hook fixing method, it is important to know that hook fixings may not be suitable for large slates, which experience a greater wind uplift than smaller slates, and for pitches above 75º or below 25º. Slate hooks are available with straight or crimped shanks. However, crimped shanks reduce the capillary action and should be used for roof pitches below 30º. In addition, when fixing slates with hooks all perimeter slates should be nailed and hooked for health and safety reasons. Slate hooks should be stainless steel and be formed from stainless steel wire. Hall Hook slate repair fixings are the market leading remedial repair hook, designed over a 20 year period by an experienced slating contractor who always wanted to have the perfect solution to an everyday roofing problem. The location is important as well, as it will impact the exposure. For example, buildings positioned on slopes, hills or coastal areas are classified as high exposure.

The geographical and geological characteristics of the quarry the slate is extracted from will determine its composition and other characteristics, including its surface texture and appearance. Certain constituents such as iron or copper pyrites can have an adverse effect on the appearance and integrity of natural slate over time. When opting for hook fixing method, it is important to know that hook fixings may not be suitable for large slates, which experience a greater wind uplift than smaller slates, and for pitches above 75º or below 25º. Slate hooks are available with straight or crimped shanks. However, crimped shanks reduce the capillary action and should be used for roof pitches below 30º. In the UK under BS EN 12326-1:2014 a hundred samples are selected by the company commissioning the test.

Roof space ventilation is the most effective and economic method of keeping harmful condensation to a minimum, and it can be achieved by providing eaves through to the ridge ventilation. Head or shoulder fixing is only acceptable for small or heavy slates. This practice is more common in Scotland. In Scottish practice it is common to nail slates to softwood sarking boards using a combination of shoulder-nailing and centrenailing to resist wind uplift. If this method is adopted it is recommended that every third course is nailed twice. Holing by Hand Responsible producers will supply a health and safety product data sheet relating to working with natural slate. This will cover all matters relevant to the prevention of accident or injury in the workplace. All natural slates can be fixed using slate hooks. The hook method offers considerable freedom in design and can save up to 25% on labour costs and eliminate breakages. The practice is very popular in Europe and is gaining popularity in the UK. In Southern England, the most common slate size is 500 x 250mm, and in the North of England and Scotland it is 400 x 250mm. Slate head lap

Slate Hooks (316 Driven): 160mm

SolarRoof Pro only uses high-grade anodized aluminium and stainless-steel components to international standards. Strict quality control over materials and finished products ensures optimum strength and long life for your installations.

Hole from the bed of the slate (its reverse), this allows the nail head to be located in the recess on the face of the slate, which is created by the holing process. Each slate should be

Centre-nailed, double-lap slates are fixed with two nails close to the side-edge of the slate and positioned immediately above the slates below. Electro-galvanized steel will eventually rust and will not last as long as stainless steel, but is a good choice for asbestos-shingle roofs or for a roof with around 25 years of life remaining. SolarRoof Pro is designed for optimal heat dissipation. It sounds counter-intuitive but solar panels like to run cool, power output will fall off above 25°C. This is why we prefer “on-roof “ to “in-roof” mounting. SolarRoof Pro is designed to allow cooling airflow around the PV modules to keep them at optimum efficiency. The type of slate depends on the pitch of the roof. For example, small slates are more suitable for steep roofs with free-flowing drainage whereas larger slates are a better choice for lower roof pitches with more exposure. Each slate is held in place by four slate hooks – one at the head, one at the tail, and one on each side. The one at the tail prevents the hook from sliding down, the side hooks stop it from turning, and the one at the head holds it at the batten.

In centre-nailed slating, the gauge is the spacing at which the battens are fixed to the rafters, trusses or counter-battens to provide the required head-lap. The margin is the exposed length of the slate measured in the same direction as the gauge. The lap and margin will be the same. If you are looking for a cost-effective alternative to copper nails yet still comply with British Standard, alloy clout nails are an excellent choice. These nails have been specifically manufactured for use on natural slate roofs and will protect your roof from nail fatigue. Stainless Steel Slate Hooks Any good roof covering should be maintenance-free. Natural slate is no exception as it does not require cleaning and ideally should be left alone. Foot traffic on a roof to carry out unnecessary cleaning is probably the most harmful thing that can happen to it, apart from storm damage. Re-usability is one area where natural slate out performs most clay roof coverings. When hook fixing, additional nail fixings should be used at eaves, ridges and top abutments and, to prevent lateral drift, at verges, hips, valleys and side abutments.

Fixing SIGA slates is straightforward for an experienced slater. Most SIGA slates come pre-holed at a nominal 90mm headlap. By simply moving the location of the slate on a standard 50x25mm batten, these can be fixed to obtain headlaps between 76 and 96mm, allowing them to be used on a variety of pitches. Nailing Natural Slates