Cold Flat Roof Verge Detail

A cold flat roof is one where the insulation is between or between and below the roof joists.

Cold flat roof verge detail.

Basically there are two options to choose from when insulating a flat roof. Additional construction details drawings. Edge detail 2 welted drip to verge. Typical mansard edge detail warm roof.

Concrete deck warm roof insulated cdeckwr pdf. This is used for refurbishment e g. Verges are designed to stop rain driving over the edge and are formed after the top sheet has been applied. 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. Installing a warm roof can be extremely straight forward and simple to do. Typical mansard edge detail cold 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.

A flat roof must be strong durable and stable throughout its lifetime. When thermal insulation is placed below the deck the ventilation must also be on the underside. Please fill in your details below to access our full list of standard details for sika sarnafils range of systems. Cold roof un insulated cdeckun pdf.

It must provide adequate protection against the elements keeping the buildings structure and interior dry. Cold roofs in the case of cold roofs the residential flat roofs have the waterproof placed directly on the deck and any insulation would be placed above the ceiling. The fascia board upstands the roof deck by 50mm. In a cold roof construction the sarnafil membrane is installed directly to the structural decking usually timber with firrings to fall.

For this content to be displayed you need to accept all cookies in the cookie settings and confirm your selection or by clicking the. In a cold weather such roofs are inherently prone to condensation which can cause material decay and deterioration. Flat roof ventilation allows for the circulation of air in the property particularly for warmer rooms in residential buildings. This arrangement allows the deck to become cold.

The insulation is below the deck but above the plasterboard. Grp flat roofing systems dryseal grp component based roofing system. A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less. Refurbishing an existing timber joisted flat roof which has no insulation.