WALLTITE® provides an answer for timber frame

Location: Bromley

Completion date: 7 May 2013

Kent-based property development company Premier Penthouses has used WALLTITE^® airtight insulation system as both a primary insulation source and as a airtightness barrier for all its recent residential developments.

Originally specialising in building penthouses onto existing buildings, the company now finds itself working more on the development of residential houses and low to medium rise flats. The preferred method of construction is to use a timber frame structure and WALLTITE^® is used as standard on all new projects because of its consistent and reliable thermal insulation combined with airtightness.

WALLTITE^® is typically sprayed directly onto the interior face of the infil panels in between the timber studs. The interior surface is then finished with plasterboard prior to decoration.

For Richard McAllister, Project Manager for Premier Penthouses, it is a simple specification decision. “We find that using spray foam is an extremely quick solution to use on site. Just as importantly it is also reliably airtight. The spray foam seals the surface completely and there is no risk of gaps occurring that would lead to heat loss.”

WALLTITE^® is a very adaptable insulator: the U-value delivered can be varied by changing the depth of insulation applied. In the case of Premier Penthouses, the specification is always more onerous than current building regulations (0.3W/m²K). The technical team at WALLTITE^® have provided specification advice for U-values as low as 0.2W/m²K.

The most recently completed project uses WALLTITE^® on a development in Shortlands, Kent. A three-storey development of six flats this development asked for a U-value of 0.22W.m²K, requiring 110mm of WALLTITE^® to be used in the wall construction.