sheathing board. This allows for temporary water protection, airtightness and long-term vapour permeability. Along with the correct balance of insulation, this means a VCL may be less critical – yet it is important to assess this fully on a project by project basis. There is little doubt that a VCL (especially variable resistance membranes) can be advantageous in several applications to reduce the moisture flow through a building envelope, but less critical in some areas, depending on the insulation placement. For example, when placing insulation purely in between the frame of a timber frame building, the moisture risk may be too high to omit the VCL and therefore should be used to reduce vapour progressing through the structural frame. However, if this is balanced with insulation placed external to the structural frame, the dew point potential is reduced due to the warm frame and the VCL becomes less critical yet still good practice. A good appreciation of the key balancing of heat, air and moisture movement can work together for the benefit of architects and contractors in continuing to improve the way that we

Garador introduces wireless optical sensor for GaraGlide

Garador’s new electrically operated roller garage door, the GaraGlide, is now available with a wireless optical sensor as an option. You can therefore now choose between a wired or wireless optical sensor for this roller door. The wireless optical sensor is built into the floor seal and utilises light beam technology, so if there is an obstruction in the way of the door curtain’s downward path, when the light beam is broken the door curtain will stop. The new wireless optical sensor means there is no spiral cable required to connect the safety edge to the separate control panel housing. Batteries are required for this new device. This new feature provides the same reliable level of protection as the wired version and recognises when there is an obstacle in the door’s path. The GaraGlide is powered by a tubular drive motor and is supplied with two remote hand transmitters as standard, with either a standard (433 MHz) or bisecur (868 MHz) hand transmitter design. It has been designed so that it is quick to fit and easy to transport to site; the entire garage door fits neatly into just two double-wall cardboard boxes. Choose from 16 colours and two timber-effect finishes.

01935 443700 New features for popular revolving door

Supplier of security and entrance systems solutions, dormakaba, has upgraded its KTV Revolving Door system, which now offers improved installation times and a new automatic Night Shield. With the dormakaba Direct Drive, the KTV Revolving Doors

now feature an impressive shallow ceiling assembly of just 100 mm, with an integrated LED light ring, allowing for the seamless integration with existing architecture. Thanks to the brushless motor, the doors benefit from enhanced life cycles – tested to 2 million cycles.

01462 477600 MasterPatio from Reynaers

Making it possible to introduce full-height glazing into spaces, MasterPatio from Reynaers leads on contemporary design while providing superior performance and functionality. Accommodating glazing up to 3.6 meters in height, the system is

suitable for a variety of applications, with slim sightlines ensuring a glass-to-frame ratio of around 90 per cent, maximising the presence of natural light. Delivering dependable performance, the system has been tested to BS EN 6375-1 and EN 10140-2 and meets to the Passivehaus standards where thermal performance is concerned.

0121 421 1999

design and construct buildings. From an industry and design perspective, it is important to understand that VCLs should not be relied upon solely to reduce moisture build-up but can have benefits when balanced with other factors. The Passive House Institute (PHI) component database helps specifiers to identify certified components, which have been tested and passed the required standards. Innovative products offer solutions that can help to achieve the fine balance between heat, air and moisture movement. Manufacturers are on hand to provide high-quality technical back up service around Passivhaus, including:  A Glaser and/or WUFI calculation service where appropriate to show the robustness of the proposed construction

 Tool Box talks, virtual if required  Specification guidance  Site visits (dependant on Covid restrictions) that can give a compliance report showing areas that are well installed and areas needing improvement in the installation.

Iain Fairnington is technical director of the A. Proctor Group


ADF MAY 2021

Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84