Timber Frame (DPC) Profiles

Often a detail is called-for within a contract that it is difficult to reproduce on site. This has prompted Cavity Trays Ltd to release a new range of dampcourses that are ready-shaped to tackle everyday construction needs encountered when building using timber frame and SIP’s methods.

The most popular of the DPC Profiles is designed for use under sole plates. Construction standards demand dpc’s are incorporated below all timber frame sole plates of ground floor walls. Furthermore, in addressing the requirements for air tightness, Robust Details calls for the dpc to turn up and lap with a vapour control layer. Using traditional dpc to create such an arrangement can be difficult. Traditional dpc can also distort,  be damaged, or progressively sag  whilst construction is taking place.

Solution

DPC Profiles are accurately dimensioned semi-rigid shaped dpc’s that permit the installer to establish consistent dpc protection around the base of timber-framed and SIP walls.

Laid and lapped under the sole plate, the profiles rise vertically to protect the inner face of the plate. (Depicted in NHBC Standards 6.2). Profiles are also available that extend inwardly. In so doing the oversite membrane can benefit both horizontal and vertical interfacing. 

DPC Profiles will not extrude under load and functionality is unaffected by normal packing / point loading. Additional protective rise can be specified where a double soleplate is used. Internal and external angles are similarly preformed. Bespoke profiles are available in addition to the standard profiles. 

DPC Profiles can be used effectively to address Robust Details (6.11 to 6.15 inclusive) and NHBC (6.2) requirements.  

• Satisfies NHBC / Robust Details requirement
• Will not extrude or seep under load
• Close fits timber – no sagging or damage
• Consistent quality of build

The CLV lovered vent can be introduced when the wet trades have finished. It differs from most circular ventilators as it has an airflow aperture rating of 2100mm2.

The Type CLV - Circular Lovered Ventilator is available in a range of colours to suit popular masonry colours. Terracotta, Beige, Brown, White and Black.

Data:

Polypropylene.

Size 79/70 x 15mm - Requires 70mm hole.

Louvres deflect driving rain and provide insect screening.

Integral location grips.

Featured in the latest 2010 Book of Wise Decisions Pocket Guide

Cavity Trays is committed to continually reducing the environmental impact of our operations, including the manufacture and use of our products.

Come and see our new products and talk to our people.

Ecobuild is the biggest showcase of sustainable construction products in the world.

Register for free on the Ecobuild website - www.ecobuild.co.uk

Introduction  

The level threshold is an everyday feature in construction that can be problematic. It is not just marrying of the external and internal levels that can prove challenging, It is doing so in a manner that protects against wetness permeating and permits a functional interfacing with the method of reveal closing / insulation and the oversite membrane.

There is now a new product manufactured specifically for this purpose. It regularises this specific area of construction. It permits internal and external floor levels to interface at an opening within a cavity wall. 

Cavity Trays of Yeovil has come up with a Level Threshold Tray (Type LTT). It provides an effective way of isolating both external and internal threshold skins to great advantage:

Phone our Helpdesk for more details or to request literature.

Complete the 'Brochure' enquiry form or telephone our Helpdesk to order your copy today.

The Type PWRB Rising Party Wall Barrier provides an alternative approach. The base of the barrier acts as a dpc and extends under both skins of the party wall. The upstand acts as a dam against water flooding from within one dwelling contaminating the adjoining dwelling. The upstand is capable of holding back a far greater volume of water than a channel.

Because the profile extends upwards instead of downwards, it can oversail and interface with commonly used perimeter gas barriers. Any water can thus be directed safely into the lower portion of the perimeter wall gas barrier, from which subsequent evacuation is via the already present barrier caviweeps. At all times the gastight integrity can be maintained.

The Party Wall Rising Barrier eliminates the problem of incompatibility, increases the capacity to prevent inter-property water contamination and satisfies the design detail requirement.