Air-tightness is a measure of the amount of air leaking out of your building. A building with poor air tightness will lose a significant amount of heat as warm air escapes.  Warm, damp air leaking into the fabric of the house can also lead to condensation.

Current Building regulations have a minimum air-tightness of 7m3/h/m2, to achieve a Code for Sustainable Homes code 3 required 3m3/h/m2, Frame Wise is able to exceed both of these specifications with air-tightness as low as 1m3/h/m2, should your project require it.

In continued efforts to meet demands of architects, governing bodies and clients including self-builders, care home and student accommodation developers and the affordable housing sectors, Frame Wise now offers a Twin Frame System to provide a more thermally efficient and air tight wall construction.

This panel system benefits from two separate timber frame skins connected at the top and bottom of each storey, or at ground floor plate level and roof on a two storey structure.

Coupled with semi rigid glass fibre insulation, this system has achieved U-values less than 0.1W/m2K and Air Tightness of 1m3/h/m2.

We offer a wide choice of insulation materials, and you’ll find details of just some of these below:

See above re presenting long content in bite-sized, interactive chunks under the following headings.

Factory fitted or supply only

This material has excellent thermal efficiency and lower U-values can be achieved with thinner walls.

Manufactured less than 10 miles from Frame Wise, which reduces transport emissions, the manufacturing process produces no CFCs or HCFCs, so delivers zero rated Ozone Depletion Potential (ODP).

On-Site fitting by Frame Wise or supply only

Rock wool is made from volcanic rock while glass wool is made from silica, one of the earth’s most abundant materials.  What’s more 80% of the glass wool supplied by Frame Wise is recycled from consumer waste.

The manufacturing process of mineral wool produces no CFCs or HCFCs, so delivers zero rated Ozone Depletion Potential (ODP) and the structure of the finished product allows the rolls to be highly compressed when packaged, reducing the amount of transport required.

Both glass wool and rock wool have a Global Warming Potential (GWP) of less than 5 and an A1 Fire Rating, the best that can be awarded.

Supply only

These natural products are both sustainable, renewable and safe to handle without specialist equipment.

We supply standard sized rolls making installation quick and easy and all products are all breathable, will naturally regulate moisture and temperature and have zero Global Warming Potential (GWP).

On-Site fitting by Frame Wise.

Made from recycled newspapers, this option requires very little energy to produce, has a zero Ozone Depletion Potential (ODP) and a negative Global Warming Potential (GWP).

We install recycled paper insulation by spraying or blowing it onto walls or into cavities, this method reduces the potential for gaps and will provide excellent air-tightness.

Frame Wise recycled paper contains added salts to improve fire resistance.

Contact us to discuss the best insulation option for your project or to find out more about other alternatives if you can’t find your preferred option for insulation listed above.