cavity wall

If a house was built after the 1920s, it's likely to have cavity walls (two walls with a gap inbetween).

Cavity walls are exterior walls with a gap in the middle that can be filled with insulation.

The gap was the rain control thing in the original cavity walls. And, the key to the gap was to keep the mortar out of the gap (Photo 1).

As a general rule, houses built after 1920 do have cavity walls and those built before don't.

"Homes that were built from 1920 onwards will more than likely have cavity walls and those with hard-totreat cavity walls may qualify for free insulation under the Government's Energy Companies Obligation (ECO) scheme, so it's worth checking out the state of play."

BRITISH Gas is offering free loft and cavity wall insulation to households - no matter which company supplies their energy.

This is your chance to cut costs and save money by installing top quality loft and cavity wall insulation courtesy of Scottish Gas - FREE!

As a general rule, houses built after 1920 have cavity walls, and those built before don''t.

Terry Bryant asks pertinent questions about cavity wall insulation (Letters, PE December).

Research by the Department of Energy and Climate Change shows hundreds of millions of pounds worth of wasted heat escaped from homes with insufficient loft and cavity wall insulation.

Currently, there is no report in the literature concerning minimal thickness of cavity walls with enough fracture resistance in primary teeth restored with amalgam.

For example, the illustration shows how a cavity normally fills with the hotter, high-shear melt (red) along the cavity walls and cooler, more viscous melt (blue) in the center (A).

They favour maximizing mass in a building (eg block/brick cavity walls, concrete ground and upper floors) which is at variance with the use of locally grown timber for walls and floors, and I am surprised they prefer the tricky technology of air-tight construction when breathing const ruction would seem by their own standards more natural, traditional and healthy.

If the device warms a little, the cavity walls emit a few microwave photons.