Warm Lead Roof Construction

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Warm lead roof construction.

Flat roof construction can come in the form of a warm roof or cold roof depending on the requirement of the owner and architect as they relate to the building regulations regarding heat loss and insulation. Cold roof voids are typically required to be ventilated. This video will demonstrate how to install a cure it grp waterproofing system in a warm roof build up. When building a flat roof it is vital that a degree of falls is built into the construction to ensure rainwater run off.

In pitched roof construction thermal insulation can be placed horizontally at ceiling level cold roof. For more information on any commercial industrial roofing services contact us at roofing consultants group 0800 046 1500. Warm leads is your introduction to just about any kind of construction lead that you may be looking for including but not limited to. It is usually the most acceptable type of construction for domestic possessions and belongings as it avoids the need for aeration of the roof construction.

More about lead as a building material. In case of warm roofs they have an insulation above the roof deck in this way it keeps the deck warm. Where a warm roof is used a ventilation void should be provided between the insulation and the timber decking supporting the lead if there is sufficient height available. The definition of a flat roof according to bs 6229 is having a pitch less than 10 o to the horizontal however some in the industry would consider up to 15 o as their definition of a flat roof.

Others would treat even steeper pitches as flat roofs. It s the first line of defence against high vapour pressure air entering the roof structure and causing interstitial condensation. Put simply a warm flat roof has insulation of some kind packed into every available void and a cold flat roof allows air to circulate. For guidance on the amount of ventilation required reference should be made to british standards 5250 and 6229.

Because of this the vcl always sits at the warm side of the. Be it a cold or warm roof construction the primary function of a vcl is to keep warm moist air from inside the building inside the building. Inclined along the line of rafters warm roof or positioned within the roof structure to form an insulated void room in roof which can result in warm and cold roof areas. Lead is commonly used for flat roofs because of it s long life and ability to be formed to fit many positions lead must be laid and formed correctly to achieve this long life however.