Cold Flat Roof Verge Detail

Typical mansard edge detail warm roof.

Cold flat roof verge detail.

Cold flat roofs warm flat roofs inverted flat roofs green flat roofs solar flat roofs. Concrete deck warm roof insulated cdeckwr pdf. Cold roof un insulated cdeckun pdf. Grp flat roofing systems dryseal grp component based roofing system.

For this content to be displayed you need to accept all cookies in the cookie settings and confirm your selection or by clicking the. This is used for refurbishment e g. Please fill in your details below to access our full list of standard details for sika sarnafils range of systems. In a cold weather such roofs are inherently prone to condensation which can cause material decay and deterioration.

Additional construction details drawings. A flat roof must be strong durable and stable throughout its lifetime. The insulation is below the deck but above the plasterboard. A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less.

Edge detail 2 welted drip to verge. The fascia board upstands the roof deck by 50mm. Typical mansard edge detail cold roof. When thermal insulation is placed below the deck the ventilation must also be on the underside.

Installing a warm roof can be extremely straight forward and simple to do. Basically there are two options to choose from when insulating a flat roof. There are two types of flat roof systems warm and cold roofs which affect the positioning of the ventilation. As well as the small selection of roof detail drawings shown here many of the building notes have a related construction detail drawing with specific dimensions eg rafter sizes spans insulations types for purchase with the building specifications.

A cold flat roof is one where the insulation is between or between and below the roof joists. Flat roof ventilation allows for the circulation of air in the property particularly for warmer rooms in residential buildings. Refurbishing an existing timber joisted flat roof which has no insulation. When we talk about a warm roof vs a cold roof what we re really talking about is the insulation of the flat roof.

How to lay a felt roof using cold adhesives a guide to installation a flat roof using three layers of roofing felt with cold adhesive. This arrangement allows the deck to become cold. Verges are designed to stop rain driving over the edge and are formed after the top sheet has been applied. There must be an adequate void minimum 50mm between the deck and the insulation traditionally mineral wool to allow free movement of air and to prevent moisture vapour being transmitted from the building outwards where it could condensate in the roof.